Huawei UPS5000-S-1600 kVA, User Manual

Page 1: ...UPS5000 S 1600 kVA User Manual Issue 04 Date 2020 03 03 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...tomer All or part of the products services and features described in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to c...

Page 3: ... configuration engineers Maintenance engineers Symbol Conventions The symbols that may be found in this document are defined as follows Symbol Description Indicates a hazard with a high level of risk which if not avoided will result in death or serious injury Indicates a hazard with a medium level of risk which if not avoided could result in death or serious injury Indicates a hazard with a low le...

Page 4: ...tion Change History Changes between document issues are cumulative The latest document issue contains all the changes made in earlier issues Issue 04 2020 03 03 Updated optional components and their installation procedures Updated the monitoring user interfaces UIs Issue 03 2019 12 20 Updated the safety information Issue 02 2019 11 28 Added SNMP descriptions to the sections about site configuratio...

Page 5: ...4 2 Overview 15 2 1 Model Number Description 15 2 2 Working Principle 15 2 2 1 Conceptual Diagram 16 2 2 2 Working Modes 16 2 2 2 1 Normal Mode 16 2 2 2 2 Bypass Mode 17 2 2 2 3 Battery Mode 18 2 2 2 4 ECO Mode 19 2 2 2 5 Joint Power Mode 20 2 3 Product Introduction 22 2 3 1 Appearance 22 2 3 2 Product Structure 23 2 3 3 Power Module 24 2 3 4 Bypass Module 26 2 3 5 Monitoring Module 28 2 3 5 1 Con...

Page 6: ...PS Installation 58 3 2 1 Installing a Cabinet 58 3 2 1 1 Floor Installation 58 3 2 1 2 Channel Steel Installation 61 3 2 2 Installing Busbars 63 3 2 3 UPS Cable Connection Reference 71 3 2 4 Connecting Cables 72 3 3 Installing Optional Components 76 3 3 1 Installing a Battery Grounding Failure Detector 76 3 3 2 Installing a Fan Unit 79 3 3 3 Connecting Other Optional Components 91 3 4 Remote EPO 9...

Page 7: ...duction to the Software 160 4 2 5 2 RCCMD Event Shutdown and Message Sending 160 4 2 5 3 UPS Alive Check Function 161 5 Operations 164 5 1 Powering On and Starting the UPS 164 5 1 1 Powering On the UPS 164 5 1 2 Starting the Inverter 165 5 1 2 1 Initial Startup 165 5 1 2 2 Non initial Startup 169 5 1 3 Powering On Loads 171 5 1 4 Optional Setting Parameters for the BCB Box 171 5 1 5 Optional Setti...

Page 8: ... 1 Monthly Maintenance 183 6 1 2 Quarterly Maintenance 184 6 1 3 Annual Maintenance 184 6 2 Battery Maintenance 185 6 2 1 Precautions for Battery Maintenance 185 6 2 2 Monthly Maintenance 185 6 2 3 Quarterly Maintenance 186 6 2 4 Annual Maintenance 187 7 Troubleshooting 189 8 Technical Specifications 191 A Alarm List 196 B Acronyms and Abbreviations 206 ...

Page 9: ...intaining the equipment The safety instructions in this document are only supplements to local laws and regulations Huawei will not be liable for any consequences of the following circumstances Operation beyond the conditions specified in this document Installation or use in environments which are not specified in relevant international or national standards Unauthorized modifications to the produ...

Page 10: ...e or terminal measure the contact point voltage and ensure that there is no risk of electric shock After installing the equipment remove idle packing materials such as cartons foam plastics and cable ties from the equipment area In the case of a fire immediately leave the building or the equipment area and turn on the fire alarm bell or make an emergency call Do not enter the building on fire in a...

Page 11: ...nnot be exposed to an outdoor environment for a long period of time Before operations ensure that the equipment is firmly secured to the floor or other solid objects such as a wall or an installation rack Do not use water to clean electrical components inside or outside of a cabinet Do not change the structure or installation sequence of equipment without permission Do not touch a running fan with...

Page 12: ... sources and degree of various potential hazards in equipment installation operation maintenance Trained personnel personnel who are technically trained have required experience are aware of possible hazards on themselves in certain operations and are able to take protective measures to minimize the hazards on themselves and other people Operators operation personnel who may come in contact with t...

Page 13: ...t a distance of at least 30 mm exists between the cables and heat generating components or areas This prevents damage to the insulation layer of the cables Do not route cables behind the air intake and exhaust vents of the equipment Ensure that cables meet the VW 1 flame spread rating requirements Bind cables of the same type together When routing cables of different types ensure that they are at ...

Page 14: ...ts To prevent fire due to high temperature ensure that the ventilation vents or heat dissipation system are not blocked when the equipment is running Install the equipment in an area far away from liquids Do not install it under areas prone to condensation such as under water pipes and air exhaust vents or areas prone to water leakage such as air conditioner vents ventilation vents or feeder windo...

Page 15: ... personnel Carry the operation machinery and tools properly to prevent them from falling off and causing injuries Personnel involving working at heights are not allowed to throw objects from the height to the ground or vice versa Objects should be transported by tough slings hanging baskets highline trolleys or cranes Ensure that guard rails and warning signs are set at the edges and openings of t...

Page 16: ...confirm its load bearing capacity Do not overload it Ensure that the ladder is securely positioned The recommended angle for a ladder against the floor is 75 degrees as shown in the following figure An angle rule can be used to measure the angle Ensure that the wider end of the ladder is at the bottom or protective measures have been taken at the bottom to prevent the ladder from sliding When clim...

Page 17: ...avy objects When moving the equipment by hand wear protective gloves to prevent injuries Move or lift the equipment by holding its handles or lower edges Do not hold the handles of modules such as power supply units fans and boards that are installed in the equipment because they cannot support the weight of the equipment Avoid scratching the cabinet surface or damaging cabinet components and cabl...

Page 18: ...ign matter from entering the UPS After unpacking batteries you are advised to connect the battery supply as soon as possible If you temporarily do not use the batteries store them in a dry and clean environment If batteries are stored for more than 90 days charge them in time Otherwise the battery lifespan may be affected Install the UPS in an area far away from liquids Do not install it under are...

Page 19: ...fs railway station platforms gymnasiums and aquariums Environments that are conducive for the growth of microorganisms such as fungus or mildew Environments where rodents such as mice and insects exist 1 7 Battery Safety Basic Requirements Before operating batteries carefully read the safety precautions for battery handling and master the correct battery connection methods Do not expose batteries ...

Page 20: ...ve infrared radiation organic solvents and corrosive gases Take fire prevention measures Place and secure batteries horizontally Note the polarities when installing batteries Do not short circuit the positive and negative poles of the same battery or battery string Otherwise the battery may be short circuited Check battery connections periodically ensuring that all bolts are securely tightened Whe...

Page 21: ...cautions for lithium batteries are similar to those for lead acid batteries except that you also need to note the precautions described in this section There is a risk of explosion if a battery is replaced with an incorrect model A battery can be replaced only with a battery of the same or similar model recommended by the manufacturer When handling a lithium battery do not place it upside down til...

Page 22: ...s Exercise caution when manually shutting down the UPS inverter for transferring to bypass mode or when adjusting the UPS output voltage level or frequency Doing so may affect the power supply to equipment Exercise caution when setting battery parameters Incorrect settings will affect the power supply and battery lifespan ...

Page 23: ... UPS model number Table 2 1 Model number description No Meaning Value 1 Product category UPS power supply and distribution product UPS is short for uninterruptible power system 2 UPS family 5000 3 UPS subcategory S series 4 Output capacity 1600 kVA 5 Solution FusionPower 2 2 Working Principle indicates an input mode indicates the energy flow direction ...

Page 24: ...telligent control Its power module consists of a rectifier inverter and DC DC converter The UPS5000 converts inputs into pure high quality sine wave outputs by using the high frequency switching technology Figure 2 2 Conceptual diagram 2 2 2 Working Modes 2 2 2 1 Normal Mode In normal mode the rectifier converts AC power into DC power then the inverter converts DC power into high precision AC outp...

Page 25: ...gram in normal mode 2 2 2 2 Bypass Mode The UPS automatically transfers to bypass mode upon detecting power module overtemperature overload or other faults that may cause the inverter to shut down The bypass power supply is not protected by the UPS which means it may be affected by mains outage and incorrect AC voltage or frequency ...

Page 26: ...ies Co Ltd 18 Figure 2 4 UPS conceptual diagram in bypass mode 2 2 2 3 Battery Mode If the mains input is abnormal or the rectifier becomes abnormal the UPS transfers to battery mode The power module obtains DC power from batteries and the power is converted into AC output by the inverter ...

Page 27: ...e LCD or web user interface WebUI In ECO mode when the bypass input is within the ECO voltage and frequency ranges and other ECO power supply conditions are met the UPS works in bypass mode and the inverter is in standby state When the bypass voltage is outside the ECO voltage range the UPS transfers from bypass mode to normal mode In bypass mode or normal mode the rectifier keeps working and char...

Page 28: ...o ensure that the inverter is in standby state and the power flow has reached the inverter 2 2 2 5 Joint Power Mode If the UPS works properly and the AC input power of the rectifiers is insufficient the UPS transfers to joint power mode In this case the power module obtains energy from both the mains and batteries and the energy is converted into AC outputs over the inverter ...

Page 29: ...UPS5000 S 1600 kVA User Manual 2 Overview Issue 04 2020 03 03 Copyright Huawei Technologies Co Ltd 21 Figure 2 7 Conceptual diagram in joint power mode ...

Page 30: ...ew Issue 04 2020 03 03 Copyright Huawei Technologies Co Ltd 22 2 3 Product Introduction 2 3 1 Appearance Figure 2 8 UPS appearance 1 Power Unit 1 2 Power Unit 2 3 Power Unit 3 4 Bypass Unit 5 Input and output Unit 1 6 Input and output Unit 2 ...

Page 31: ...device SPD box 2 Power modules 3 Bypass module 4 Monitoring module 5 SPD and SPD switch 6 Bypass control module 7 Output circuit breaker of power unit 2 Q5 2 8 Input circuit breaker of power unit 2 Q1 2 9 Input circuit breaker of power unit 1 Q1 1 10 Output circuit breaker of power unit 1 Q5 1 11 Output circuit breaker of power unit 3 Q5 3 12 Input circuit breaker of power unit 3 Q1 3 ...

Page 32: ...ator description Indicator Color Status Description Run indicator Green Steady on The system is working in inverter mode Blinking at long intervals The inverter is ready and in standby state blinking at 0 5 Hz on for 1s and off for 1s The inverter is not started blinking at 0 2 Hz on for 2 5s and off for 2 5s Blinking at short intervals The module is not configured the inverter or rectifier DSP so...

Page 33: ...eing upgraded Fault indicator Red Steady on A critical alarm is generated for the inverter or rectifier Off There is no critical alarm for the inverter or rectifier or the rectifier FPGA software is being upgraded Functions The power module consists of a power factor correction PFC rectifier inverter and DC DC converter The power module performs AC DC or DC DC conversion on the mains and battery i...

Page 34: ...6 Bypass module 7 Bypass control module Table 2 3 Indicator description Indicator Color Status Description Run indicator Green Steady on The system is working in bypass mode Blinking at long intervals The bypass has no output blinking at 0 2 Hz on for 2 5s and off for 2 5s Blinking at short intervals The bypass is not configured or the DSP software is being upgraded blinking at 4 Hz on for 0 125s ...

Page 35: ...unctions The bypass module supplies power in the following cases If the UPS is set to ECO mode and the bypass voltage is within the specified range the UPS works in bypass mode If the power module overload times out the UPS transfers to bypass mode In normal mode if both the active and standby ECMs of the bypass unit are faulty the bypass takes over power supply The system fails to run properly an...

Page 36: ...dule 2 3 5 1 1 Overview In a standard configuration the control module consists of two ECMs one dry contact card and one monitoring interface card from left to right The four cards are hot swappable Figure 2 13 Signal panel on the control module 1 Ground terminal 2 Parallel port 1 3 BSC port 1 4 Ready switch on ECM 1 5 Indicators for ECM 1 6 Parallel port 2 7 BSC port 2 8 Ready switch on ECM 2 9 I...

Page 37: ...e UPS system Preinstalled In use Controls the entire UPS system Preinstalled The PARALLEL port transmits parallel signals between racks BSC In use Controls the entire UPS system Reserved The BSC port is used in a dual bus system to synchronize output frequencies and phases between UPS systems ensuring that two buses can switch with each other BSC cables are hot swappable Table 2 5 Indicator descri...

Page 38: ... the ECM communicates with each module and provides a bus to communicate with the dry contact card The ECM ensures equalized output currents between modules so that load power is equally shared Provides module running information for the MDU Controls the running of a single UPS5000 and reports the UPS5000 status information to other monitoring modules The system provides three types of CAN communi...

Page 39: ... unit 3 Port for detecting the BCB box Grounded BCB box connected Disconnected BCB box not connected Grounded BCB_STA Port for monitoring the battery switch Connected battery switch ON Disconnected battery switch OFF Disconnected BCB_DRV Controls battery circuit breaker trip When the voltage is 12 V the circuit breaker trips 0 V battery switch not tripped 12 V battery switch tripped 0 V BCB_0V Por...

Page 40: ...ass switch ON Connected SWITCH STATUS_0V N A Port for signal ground SPD N A Port for monitoring the status of the AC input SPD or system output switch Connected SPD enabled or circuit breaker ON Disconnected SPD disabled or circuit breaker OFF Connected 0V N A Port for signal ground The dry contact interface card takes effect only after it is set on the monitoring system Set the unused dry contact...

Page 41: ...information and displays the UPS key information and parameters on the LCD Figure 2 16 Monitoring interface card DO_1 to DO_4 meet the maximum voltage and current requirements of 30 V DC 1 A or 60 V DC 0 5 A Table 2 7 Description of ports on the monitoring interface card Port Silk Screen Control Module 1 Control Module 2 Description DO_1 NO In use Controls the entire UPS system Reserved DO_1 is us...

Page 42: ...t temperature and humidity sensor or battery temperature sensor two wire system Southbound communications port 2 COM2 In use In use N A Network port FE N A Northbound communications port RS485 In use Controls the entire UPS system Reserved Supported protocol Modbus RTU Connects to a northbound network management device or a third party network management device over two wires DB26 MDU Provides FE ...

Page 43: ...nual 2 Overview Issue 04 2020 03 03 Copyright Huawei Technologies Co Ltd 35 Figure 2 17 Wiring method 1 Figure 2 18 Wiring method 2 Figure 2 19 COM1 pins Table 2 8 COM1 pin definition Pin Description 1 GND 2 N A 3 RS485 4 RS485 ...

Page 44: ... A 4 RS485_R 5 RS485_R 6 GND 7 N A 8 N A If cables are prepared onsite follow the three methods below Connect pin 1 and pin 2 Pin 1 connects to RS485 and pin 2 connects to RS485 Connect pin 4 and pin 5 Pin 4 connects to RS485 and pin 5 connects to RS485 Connect pins 1 2 4 and 5 Twist cables to pin 1 and pin 4 into one cable and then connect it to RS485 Twist cables to pin 2 and pin 5 into one cabl...

Page 45: ...device cannot be connected Table 2 10 Intelligent detection board function Port Silkscreen Intelligent Detection Board 1 Intelligent Detection Board 2 Description FE_1 In use Controls the entire UPS system Reserved Supported protocols Modbus TCP HTTPS and SNMP Connects to the network port on a PC COM_OUT Reserved Supported protocol Modbus RTU Connects to a southbound device Table 2 11 Indicator de...

Page 46: ...linking at long intervals 4 Hz The communication fails ALM Red Steady on An alarm is generated Off None Signal cables are double insulated twisted cables If the cable length is 25 50 m the cross sectional area is 0 5 mm2 to 1 5 mm2 FE cables are shielded cables Figure 2 22 COM_OUT port pins Table 2 12 COM_OUT port pin definitions Pin No Description 1 RS485 2 RS485 3 4 RS485 5 RS485 6 7 CANH 8 CANL...

Page 47: ...X 2 FE4_TX 3 FE4_RX 4 5 6 FE4_RX 7 8 Function In the UPS5000 all in one solution the intelligent detection board monitors the busbar temperature of the power unit input output unit and bypass unit monitors the Boolean values inside the cabinet communicates with the monitoring display unit MDU and other intelligent detection boards and controls indicators Specifications Hot swappable 1 U high ...

Page 48: ...rms minor alarms bypass mode battery mode low battery voltage D G control and other status DO_1 indicates low battery voltage by default and others are reserved DI_1 and DI_2 allow you to monitor door alarms and water alarms All DIs are reserved Users can flexibly set DOs based on actual requirements DI ports detect input dry contact signals which are passive signals DOs transmit passive dry conta...

Page 49: ..._4 NO Indicates relay output signals The dry contact is normally open by default When the preset status occurs the relay is closed Users can set the dry contacts to normally open or closed based on actual requirements COM DO_5 NO Indicates relay output signals The dry contact is normally open by default When the preset status occurs the relay is closed Users can set the dry contacts to normally op...

Page 50: ... DO ports Figure 2 26 Recommended method 2 for connecting cables to DO ports Specifications The dry contact extended card is hot swappable 2 3 5 4 Backfeed Protection Card Appearance Figure 2 27 Backfeed protection card Functions When a backfeed occurs the backfeed protection card sends signals to trigger alarm signals or quickly disconnects the feedback loop ...

Page 51: ...M are normally open contacts NC and COM are normally closed contacts When a backfeed occurs the normally open contacts are closed and the normally closed contacts are open MFP_COM MFP_NC BFP bypass feedback protection BFP_NO The BFP ports are the signal ports for the bypass backfeed protection NO and COM are normally open contacts NC and COM are normally closed contacts When a backfeed occurs the ...

Page 52: ...he backfeed protection card and shunt release 1 Shunt release 2 6 A fuses The backfeed protection card needs to be powered by the UPS output or a more reliable third party power to ensure that the backfeed protection card can isolate faults if backfeed faults occur in battery mode Specifications The backfeed protection card is hot swappable ...

Page 53: ...ble 2 16 Status indicator Status Color Meaning On Red A critical alarm has been generated and the buzzer sounds continuously Yellow A minor alarm has been generated and the buzzer buzzes at 2 Hz Green The UPS is running properly or a warning has been generated Off N A The MDU is powered off The indicator on the MDU panel is yellow when the bypass supplies power in non ECO mode ...

Page 54: ... UPS running information during preventive maintenance NOTE Only Huawei service engineers or authorized service engineers are allowed to use the WiFi module To ensure security remove the WiFi module immediately after use Insert the USB flash drive import and export the configuration file export run logs and upgrade software 6 RST Restart switch for the MDU 7 SD Reserved 8 DIP switch Implements spe...

Page 55: ...ver configuration of the dual bus system is complex 2 4 1 Single UPS This series uses a modular design in which multiple power modules are connected in parallel to deliver a high loading capacity If a single power module is faulty the other power modules continue working When the load power is small even a single UPS can provide redundant capacity which ensures high reliability 2 4 2 Single UPS Du...

Page 56: ...BXA001 Controls the connection between battery strings and the UPS and supports overload protection short circuit protection and remote trip control PDU8000 0125 0250 0400 0630 0800 DCV8 BXA001 BCB Box User Manual BBB box PDU8000 1250DCV8 BGA001 PDU8000 2000DCV8 BGA001 Converges the energy from multiple battery strings PDU8000 0630 1250 2000 DCV8 BGA001 BBB Box User Manual Ambient temperature and ...

Page 57: ...rent leakage and generates alarms When equipped with a remote trip switch the detector protects devices and prevents the outbreak of a fire Detects battery grounding failures and generates alarms when the ground leakage current exceeds a specified value UPS Battery Grounding Failure Detector User Manual Fan unit N A The fan unit is used for top air exhaust UPS5000 S 1600 kVA User Manual BSC cable ...

Page 58: ... water sources heat sources and flammable or explosive materials Keep the UPS away from direct sunlight dust volatile gases corrosive materials and air dense with salt particles Do not install the UPS in environments with conductive metal scraps in the air The optimal operating temperatures for valve regulated lead acid batteries VRLA batteries are 20 30 C Operating temperatures higher than 30 C s...

Page 59: ...cabinet Reserve at least 500 mm from the rear of the cabinet for ventilation Reserve at least 200 mm from the rear of the cabinet if there are ventilation clearances reserved at the top left and right of the cabinet Reserve at least 800 mm if you need to perform operations at the rear of the cabinet 3 1 2 Tools and Instruments Insulate installation tools to prevent electric shocks Prepare the foll...

Page 60: ...oy hole saw Heat gun Diagonal pliers Crimping tools Wire stripper Electric hydraulic pliers Clamp meter Multimeter Cable tie Level instrument Polyvinyl chloride PVC insulation tape Cotton cloth Label Electrician s knife Electrostatic discharge ESD gloves Protective gloves Insulated gloves Insulation protective shoes Torque screwdriver Cable cutter Brush Flat head screwdriver 2 5 mm ...

Page 61: ...ch Table 3 1 lists only the common tools for installation and cable connection For more dedicated tools required see the corresponding component manuals Prepare tools based on site requirements 3 1 3 Preparing Power Cables and Copper Bars The UPS can generate large leakage currents A circuit breaker that provides leakage current protection is not recommended Prepare wiring copper bars based on the...

Page 62: ...l 3 Installation Issue 04 2020 03 03 Copyright Huawei Technologies Co Ltd 54 Figure 3 2 Distances between the top copper bars of the bypass unit and input and output unit unit mm Figure 3 3 Distances between top copper bars unit mm ...

Page 63: ...ery nominal discharge current A 3509 Battery maximum discharge current A 4203 Recommended cross sectional area mm2 for each power unit 3 x 2 x 240 PE 240 Equipotential ground point Recommended cross sectional area mm2 16 The currents listed in the tables are measured at a rated voltage of 380 V When selecting connecting and routing power cables follow local safety regulations and rules When the ex...

Page 64: ...r a ladder or bracket in a single layer E in IEC60364 5 52 The distance between cables should be greater than twice the cable diameter Routing mode The cables are routed over a ladder or bracket in a single layer E multi core and G single core in IEC60364 5 52 The ambient temperature is 30 C The AC voltage loss is less than 3 and the DC voltage loss is less than 1 90 C flexible copper power cable ...

Page 65: ...Only trained personnel are allowed to move the UPS Use a pallet truck to transport the UPS box secured to a wooden support to the installation position To prevent the UPS from falling over secure it to an electric pallet truck using ropes before moving it To prevent shocks or falls move the UPS gently After placing the UPS in the installation position unpack it with care to prevent scratches Keep ...

Page 66: ...tom of the cabinet to prevent paint flake off and deformation Otherwise the front door will not be properly closed 3 2 1 Installing a Cabinet 3 2 1 1 Floor Installation Prerequisites Ensure that the installation floor is flat Context During delivery the power units and bypass unit are transported separately and two input output units are transported together Procedure Step 1 Determine the cabinet ...

Page 67: ... holes on the channel steel B mounting holes on the floor Figure 3 6 Power unit hole dimensions unit mm Figure 3 7 Dimensions for the holes for the bypass unit and input output unit unit mm Step 2 Use a hammer drill to drill holes for installing the expansion bolts and then install the expansion sleeves in the holes ...

Page 68: ... sleeves must be completely buried under the ground to properly facilitate subsequent installation Figure 3 9 Installing expansion bolts unit mm 1 Drill holes in the ground by using a hammer drill The hole depth is 52 mm to 60 mm 2 Partially tighten the expansion bolt and vertically insert it into the hole Hit the expansion bolt using a rubber mallet until the expansion sleeve is fully inserted in...

Page 69: ... in the following sequence bottom top and middle Figure 3 10 Installing connecting plates Step 5 Install the side panels removed from the input and output unit to power unit 1 and power unit 3 Step 6 Use M12x60 expansion bolts to secure the power units bypass unit and input output units to the expansion bolt mounting holes on the floor in sequence Step 7 Install anchor baffle plates Figure 3 11 In...

Page 70: ...r channel steel installation Step 2 Drill mounting holes on the channel steels using a hammer drill Step 3 Remove the left and right side panels from the input and output unit Step 4 Combine the power units bypass unit and input output units and install the connecting plates in the following sequence bottom top and middle Step 5 Install the side panels removed from the input and output unit to pow...

Page 71: ...e meter high At least two persons are required to carry a busbar At least two persons are required to hold the busbar on the top of the cabinet When moving a busbar hold both ends of the busbar component It is recommended that the soft copper bar face downward Do not move the busbar upward by holding the soft copper bar Procedure Step 1 Remove the front panels and dustproof covers from the top of ...

Page 72: ...U shaped sealing plate component Step 3 Install busbar components numbered 02 and 03 secure them to the cabinet Figure 3 16 Installing busbar component Step 4 Use copper bars numbered 04 06 to connect the busbar components numbered 02 and 03 Before installation remove the screws that are partially tightened from the busbar component ...

Page 73: ...ogies Co Ltd 65 Figure 3 17 Installing busbar component 1 Insulator The two insulators do not need to be secured with screws Step 5 Install the busbar component numbered 07 and secure it to the cabinet Figure 3 18 Installing busbar component Step 6 Install the left sealing plate numbered 08 ...

Page 74: ...03 Copyright Huawei Technologies Co Ltd 66 Figure 3 19 Installing sealing plates Step 7 Install the side sealing plate numbered 09 for the input and output unit Figure 3 20 Installing sealing plates Step 8 Install the side sealing plate numbered 10 for power unit 3 ...

Page 75: ...ei Technologies Co Ltd 67 Figure 3 21 Installing sealing plates Step 9 Install the rear sealing plate numbered 11 for the power unit 1 and power unit 2 Figure 3 22 Installing sealing plates Step 10 Install the sealing plates numbered 12 for the bypass unit and input and output unit ...

Page 76: ...ght Huawei Technologies Co Ltd 68 Figure 3 23 Installing sealing plates Step 11 Install the sealing plates numbered 13 for power unit 3 Figure 3 24 Installing sealing plates Step 12 Install the busbar numbered 14 for power unit 3 Figure 3 25 Installing the busbar component ...

Page 77: ...he front and rear sealing plates numbered 15 and 16 for input and output unit 2 Figure 3 26 Installing sealing plates Step 14 Install the right sealing plate numbered 17 for power unit 3 Figure 3 27 Installing sealing plates Step 15 Install supports for the busbar covers Figure 3 28 Installing supports for the busbar covers ...

Page 78: ...nstalling sealing plates for the battery wiring protective covers Step 17 Install mounting plates the left and right mounting plates are numbered 18 Figure 3 30 Installing mounting plates 1 Power unit 1 plate 2 Power unit 2 plate 3 Bypass unit plate 4 Input and output unit 1 plate 5 Input and output unit 2 plate 6 Power unit 3 plate Step 18 Install the busbar covers Figure 3 31 Installing the busb...

Page 79: ...f the copper wire should be the same as that of the part of the terminal that covers the conductor Procedure Step 1 Route a cable into the cabinet and bind it to a nearby beam Step 2 Pull the cable to the copper bar to which the cable is to be connected determine the cable length and mark the cable at the position where the cable is to be cut Step 3 Pull the marked cable out of the cabinet cut the...

Page 80: ...ption Connection Method Bolt Specifications Bolt Length Torque Mains input Crimped DT terminals M12 35 mm 47 N m Bypass input Crimped DT terminals M12 35 mm 47 N m Battery input Crimped DT terminals M16 55 mm 120 N m Output Crimped DT terminals M12 35 mm 47 N m PE Crimped DT terminals M12 35 mm 47 N m Equipotential ground point Crimped DT terminals M6 N A 4 5 N m Procedure Step 1 Connect the equip...

Page 81: ...d 73 Figure 3 34 Installing the copper bars Step 3 Perform this step only when the mains input and bypass input share a power source Install the copper bars L1 L2 and L3 copper bars between the mains input and bypass input Figure 3 35 Installing the copper bars Step 4 Install the U V and W copper bars ...

Page 82: ...ies Co Ltd 74 Figure 3 36 Installing the copper bars Step 5 Connect input and output busbars and battery cables based on the top copper bar position diagram Step 6 Install supports and covers on the top of the protective covers for each power unit Figure 3 37 Installing top supports and covers ...

Page 83: ...ing the protective covers Step 8 Connect the signal cables between the power unit input and output unit and bypass unit Table 3 6 Port mapping table Cabinet Port Bypass Unit Port Power unit 1 XS1 BP XS2 02 BP XS6 connect to the XS6 terminal reserved in the cabinet Power unit 2 XS1 Power unit 3 XS1 BP XS3 Input and output unit 2 bound to input and output unit 1 N A BP XS4 Input and output unit 1 N ...

Page 84: ...e 3 7 Port mapping table Cabinet Where the Signal Port Is Located Bypass Unit Port Power unit 1 Signal PWU1 Power unit 2 Signal PWU2 Power unit 3 Signal PWU3 Figure 3 40 Connecting the signal cables End 3 3 Installing Optional Components 3 3 1 Installing a Battery Grounding Failure Detector Prerequisites If the power units share battery strings you need to install a battery grounding failure detec...

Page 85: ...nd remove the bracket of the battery grounding failure detector Figure 3 41 Removing the cover and bracket Step 2 Mount the battery grounding failure detector onto the bracket and reinstall the bracket in the cabinet Figure 3 42 Installing a battery grounding failure detector Step 3 Remove the front panel from the SPD in the bypass unit Step 4 Connect cables 1 Connect the power cables of the batte...

Page 86: ...l cable of the battery grounding failure detector to the dry contact card MUE05A of the control module of each power unit Figure 3 43 Connecting cables 3 Connect the signal cables of the battery grounding failure detectors in power units 1 and 2 to the wiring terminal on the beam where the SPD is installed in the bypass unit ...

Page 87: ...les of the battery grounding failure detector in power unit 3 to the dry contact card MUE05A of control module 2 in the bypass unit Figure 3 45 Connecting signal cables Step 5 Reinstall the top cover for each power unit and the front panel for the SPD in the bypass unit End 3 3 2 Installing a Fan Unit Configure the fan unit if you install the cabinet against the wall ...

Page 88: ...t Huawei Technologies Co Ltd 80 Product Appearance Figure 3 46 UPS 1 Fan unit left 2 Power unit 1 3 Power unit 2 4 Bypass unit 5 Input output unit 1 6 Input output unit 2 7 Power unit 3 8 Fan unit right Figure 3 47 Fan unit structure 1 Fan power switch 2 Cover stopper 3 Cover ...

Page 89: ...talling a Cabinet Step 1 Determine the cabinet installation positions on the floor based on holes in the marking off template for floor installation A mounting holes on the channel steel B mounting holes on the floor Figure 3 48 Fan unit hole dimensions unit mm Figure 3 49 Power unit 1 hole dimensions unit mm ...

Page 90: ...UPS5000 S 1600 kVA User Manual 3 Installation Issue 04 2020 03 03 Copyright Huawei Technologies Co Ltd 82 Figure 3 50 Power unit 2 hole dimensions unit mm Figure 3 51 Bypass unit hole dimensions unit mm ...

Page 91: ...t 3 hole dimensions unit mm Step 2 Use a hammer drill to drill holes for installing expansion bolts and then install expansion sleeves in the holes Step 3 Install side plates for the bypass unit and input output unit Step 4 Remove the rear door from the cabinet Step 5 Remove the door header from the rear of the cabinet Figure 3 54 Removing the door header rear view of the cabinet ...

Page 92: ...ear door plate without meshes in the door header and fan unit accessories Step 8 Install the anchor baffle plate at the rear of each cabinet Figure 3 56 Installing the anchor baffle plate at the rear of the cabinet Step 9 Secure the cabinet 1 Combine input and output unit and the bypass unit Install anchor screws close to the wall install connecting kits at the bottom top and then middle of the ca...

Page 93: ...i Technologies Co Ltd 85 Figure 3 57 Combining input and output and the bypass unit 2 Combine power unit Install anchor screws close to the wall install connecting kits at the bottom top and then middle of the cabinet and secure the anchor screws under the front door of the cabinet ...

Page 94: ... 3 58 Combining power units 3 Combine fan units a Install connecting kits from the bottom to the middle b Remove the bottom cover from the fan unit c Tighten the anchor screws d Reinstall the bottom cover Figure 3 59 Combining fan units 1 Connecting kits without floating nuts 2 Connecting kits with floating nuts ...

Page 95: ...he installation procedure for power unit 3 is the same Figure 3 60 Assembling the rear sealing plate components for the power unit Step 2 Install the rear sealing plate of the power unit Power units 1 and 2 are used as an example The installation procedure for power unit 3 is the same 1 Install the screw numbered 1 in the figure 2 Install the screw numbered 2 in the figure Figure 3 61 Installing t...

Page 96: ...r the bypass unit and input and output unit Figure 3 63 Installing the rear sealing plate assembly for the bypass unit and input and output unit 1 Part R the part removed from the rear sealing plate of the power unit 1 2 Step 5 Install the front and rear sealing plates numbered 12 for the bypass unit and input and output unit 1 Install the front and rear sealing plates numbered 15 and 16 for input...

Page 97: ...tes numbered 52 using the left side of the fan unit as an example of the fan unit Figure 3 65 Installing the front and rear sealing plates of the fan unit End Installing a Cable The procedure for installing a cable for the fan unit and installing a mounting plate is different For details about how to install cables for the power cabinet bypass cabinet and input output bypass cabinet see the preced...

Page 98: ...eaker copper bar through the PVC cable hole and then connect the cable to the N bar Step 2 Install the mounting plate Figure 3 67 Installing the mounting plate 1 Mounting plate numbered 13 2 Fan unit left mounting plate 3 Power unit 1 mounting plate 4 Power unit 2 mounting plate 5 Bypass unit mounting plate 6 Input Output unit 1 mounting plate 7 Input Output unit 2 mounting plate 8 Power unit 3 mo...

Page 99: ...tact card MUE05A of control module 1 Connect the battery string BCB box of power unit 3 to the BCB dry contact port on the dry contact card MUE05A in control module 2 Ambient temperature and humidity sensor Connect the ambient temperature and humidity sensors and battery temperature sensors in series and then connect them to the COM1 port on the monitoring interface card MUS05A of control module 1...

Page 100: ...awei does not provide the EPO switch or cable If the cable is required the recommended cable is 22 AWG Equip the EPO switch with a protective cover to prevent misoperations and cover the cable with protective tubing Triggering EPO will shut down the rectifier inverter charger and static bypass but does not disconnect the UPS mains input To power off the UPS completely open the front end input swit...

Page 101: ...V before connection When the EPO switch is turned off EPO is triggered When the EPO switch is in the NO state ensure that the jumper is connected between EPO_NC and EPO_12V When the EPO switch is turned on EPO is triggered 3 5 Parallel System Installation 3 5 1 Connecting Power Cables Procedure Step 1 Ground each UPS in a parallel system separately and connect power cables and battery cables Step ...

Page 102: ...lk screen The length and specifications of power cables on each UPS must be the same to achieve current equalization in bypass mode The power cables include bypass input power cables and UPS output power cables Figure 3 70 Single UPS dual bus system schematic diagram End 3 5 2 Connecting Signal Cables Connecting Signal Cables to a Parallel System ...

Page 103: ...n Verification Table 3 11 lists check items If the check results of listed items 8 and 9 in Table 3 11 do not meet the acceptance criteria the UPS may be damaged Table 3 11 Installation checklist No Item Acceptance Criteria 01 UPS installation The UPS is securely installed and does not tilt due to vibration 02 Neat arrangement The UPS and its adjacent cabinets are neatly arranged and secured with ...

Page 104: ...rrectly connected to the UPS 10 Foreign matter cleaning inside the cabinet The inside and outside of the cabinet and other operating components are free from conductive dust 1 There is no foreign matter such as copper wires and screws on the top of the cabinet 2 There is no foreign matter on the copper bar terminals 3 There is no foreign matter around switch terminals 4 There is no foreign matter ...

Page 105: ...layed in this document correspond to the MDU version V300R002C10SPC370 and are for reference only The LCD screen is divided into three parts status bar alarm bar and information area Figure 4 1 Main menu Table 4 1 Main screen description Number Area Function 1 Status bar Displays the UPS model capacity configuration current date and time USB flash drive status and buzzer status ...

Page 106: ...h as load and battery information Tap the Bypass Mains Battery and Load icons to view details Table 4 2 Functions of common buttons Button Function Returns to the main screen Scrolls the page down Scrolls the page up Returns to the upper level menu Logs a user out Table 4 3 LCD user passwords Default User Preset Password admin administrator 000001 operator common user 000001 On the System Info scr...

Page 107: ...pass unit 4 1 2 Menu Hierarchy Table 4 4 LCD menu hierarchy Menu Position Main Menu Second Level Menu Third Level Menu System System Status Bypass N A Mains N A Load N A Battery N A System Info Runn Info AC Output UPS Load Mains Input Bypass Input Power Unit 1 Batt Power Unit 2 Batt Power Unit 3 Batt Total Runtime Environment Data Intelli Temp Detect ...

Page 108: ...larms Buzzer Off Clear Faults Settings Comm Settings System Settings Input Settings Output Settings Bypass Settings Battery Settings Dry Contact Set Intelli Temp Detect Settings Wizard User Settings Parameter Sync DST Settings Maintenance USB Operations Inv ON Inv OFF ECM Switchover Screen Calib About N A Common Functions AC Output N A UPS Load N A Mains Input N A Inv ON N A Inv OFF N A Buzzer Off...

Page 109: ... UPS Load Mains Input Battery Information Module Data Total Runtime Battery Detailed Data Intelli Temp Detect Alarms Active Alarms Historical Alarms Settings Comm Settings Dry Contact Set Maintenance Battery Maint Bus Capa Life Fan Lifespan Estimate About N A Common Functions AC Output N A UPS Load N A Mains Input N A Historical Alarms N A Bypass Unit Bypass Unit Status Bypass N A Load N A Bypass ...

Page 110: ...C output data AC output data of this power unit AC output data of the bypass unit UPS Load System load data Load data of this power unit Load data of the bypass unit Mains Input System mains input data Mains input data of this power unit N A Bypass Input System bypass input data N A System bypass input data Power Unit 1 Batt Power unit 1 battery data N A N A Power Unit 2 Batt Power unit 2 battery ...

Page 111: ...ata N A Detailed battery data of this power unit N A Intelli Temp Detect Copper bar and switch temperature data of mains input and system output Temperature data of the positive and negative copper bars of the power unit battery Copper bar temperature data of bypass input Circuit Breaker Status Mains input and system output switch status On the System Info screen tap to access the Runn Info screen...

Page 112: ...Huawei Technologies Co Ltd 104 Figure 4 4 System running 2 On the System Info screen tap the power unit icon to access the Power Unit N battery screen and tap to access the Runn Info screen of the current power unit Figure 4 5 Power unit running 1 Figure 4 6 Power unit running 2 ...

Page 113: ...on the UPS Reactive power kvar Output reactive power of each phase on the UPS that is square root of the difference between the square of output apparent power and the square of output active power Load ratio Load ratio of each phase on the UPS that is proportion of actual power to rated power Crest factor Proportion of the peak value of load current to the valid value The UPS load of the power un...

Page 114: ...ischarging or Not chg or dis Voltage V Voltage of the battery string Current A Current of the battery string The current is when batteries are being charged and when discharged Temperature C N A Backup time min Battery backup time estimated at the current load Remaining cap Remaining battery capacity SOH State of health The Power Cabinet N data in the system running is the same as the Battery Info...

Page 115: ... N copper bar temp C System output A B C N copper bar temp C Mains input circuit breaker Q1 1 Q1 2 Q1 3 temp C Output circuit breaker Q5 1 Q5 2 Q5 3 temp C Battery positive negative copper bar temp C Bypass input A B C N copper bar temp C Table 4 14 Circuit breaker status Item Description Mains input circuit breaker Q1 1 Q1 2 Q1 3 status Output circuit breaker Q5 1 Q5 2 Q5 3 status Module Data ref...

Page 116: ...ical Alarms All historical alarms Historical alarms of this power unit Historical alarms of the bypass unit Buzzer Off Buzzer off Clear Faults Clearing all alarms Tap on the System Info screen to access the Alarms screen Figure 4 7 System alarms Active Alarms This screen displays alarm information including the severity name ID location and generation time Figure 4 8 Active alarms ...

Page 117: ...enerated the buzzer is activated Buzzer off If this selection is enabled the buzzer is muted If the buzzer is enabled Buzzer Off is displayed on the operation screen 4 1 3 3 Settings Table 4 16 Setting data description Setting Item System Power Unit Comm IP Settings System IP settings IP settings of this power unit Comm RS485 Settings System RS485 settings N A Comm ModbusTCP Settings System Modbus...

Page 118: ... N A Battery Settings Battery Settings N A Dry Contact Set System dry contact settings Dry contact settings of this power unit Intelli Temp Detect Intelligent temperature detection of the system N A Settings Wizard Settings wizard N A User Settings User settings N A Parameter Sync Synchronizing parameters of the power units and bypass unit N A DST Settings DST settings N A On the System Info scree...

Page 119: ...3 03 Copyright Huawei Technologies Co Ltd 111 Figure 4 11 System settings 2 On the System Info screen tap the power unit icon to access the Power Cabinet N Info screen and tap to display the Settings screen of the current power unit Figure 4 12 Power unit settings ...

Page 120: ...4 User Interface Issue 04 2020 03 03 Copyright Huawei Technologies Co Ltd 112 Communication Settings Figure 4 13 System communication settings Figure 4 14 Power unit communication settings Figure 4 15 IPsettings IP address allocation ...

Page 121: ...ress 182 98 225 125 UPS IP Address 182 98 225 112 PC IP address UPS IP address 10110110 01100010 111000 01 01111101 10110110 01100010 111000 01 01110000 Subnet mask 255 255 255 192 11111111 11111111 111111 11 11000000 11111111 11111111 111111 11 11000000 Bitwise AND operation result 10110110 01100010 111000 01 01000000 10110110 01100010 111000 01 01000000 Automatic The MDU automatically searches f...

Page 122: ...ated by the user 1 1 254 Baud rate Select a baud rate to match the user s network management conditions onsite 9600 9600 19200 115200 Parity mode Verify the validity of RS485 communication characters When a device node adopts RS485 communication ensure that the parity modes for the device nodes are set to the same mode None None Odd Even Stop bit Stop bit in the Modbus communication frame format W...

Page 123: ...ModbusTCP encryption If Modbus TCP is used for communication communication links do not implement encryption or implement encryption based on the selected encryption mode Enable Disable Enable Figure 4 18 Ambient temperature and humidity sensor Item Description Default Value Value Range Start address 32 32 44 Quantity Number of cascaded ambient temperature and humidity sensors 0 0 4 ...

Page 124: ... Number of cascaded battery temperature sensors 0 0 15 Figure 4 20 WiFi communication settings Item Description Default Value Value Range SSID When using the mobile app for site setup or inspection set WiFi SSID after connecting a WiFi module over a USB port to identify the WiFi device to which the mobile phone is connected UPS_WIFI Last six characters of the MAC address Password The password for ...

Page 125: ... modules Matches the system capacity N A 6 30 Redundant modules Set this parameter based on load capacity and redundancy requirements 0 0 12 Working mode UPS working mode Normal mode Normal mode ECO Self load mode Converter mode ECO voltage range In ECO mode when the difference between the bypass voltage and the rated voltage is greater than this value the system determines that the ECO voltage is...

Page 126: ... properly connected and that BSC related hardware is properly installed Non BSC mode Non BSC mode Standard BSC mode Optional BSC card BSC N R mode Altitude m Set this parameter based on the altitude of the place where the rack is used 1000 1000 1000 2000 2000 3000 3000 4000 4000 5000 Top outlet fan Enable this parameter if a top outlet fan is configured Then the fan running status can be checked D...

Page 127: ... module in a rack varies depending on the rack number and module number 1 module in rack 1 does not have a start delay Intelligent detection module When you set this parameter to Enable the intelligent temperature detection and switch status are displayed on the Settings and Running screens Enable Disable Enable BCB trips if UPS stops power supply Indicates whether the BCB trips when the system st...

Page 128: ...t cur limiting Specifies whether to enable or disable input current limiting to protect generators Disable Disable Enable Input cur limiting ratio Limits the input current to protect the D G 200 50 200 Output Settings Figure 4 24 Output settings Item Description Default Value Value Range Output voltage level Specifies the system output voltage level This parameter is configurable only after the in...

Page 129: ...V 209 0 231 0 400 V 218 5 241 5 415 V 228 0 252 0 Output frequency Hz Specifies the system output frequency level 50 Hz 50 Hz 60 Hz Output freq track rate Hz s This parameter can be adjusted based on site requirements If Output freq track rate Hz s is slow the inverter frequency is different from the bypass frequency when the bypass frequency changes If output is overloaded or the inverter is faul...

Page 130: ...ult value is 10 Minimum bypass voltage When the difference between the bypass voltage and the rated voltage exceeds the upper threshold for the bypass voltage the system determines that the bypass voltage is not normal and that the bypass is unavailable 20 10 15 20 30 40 50 60 Bypass frequency range Hz When the difference between the bypass input frequency and the rated frequency is greater than t...

Page 131: ... EOD Dis cur 0 3C EOD Dis cur 0 5C EOD Dis cur 1 0C EOD A cell consists of electrodes and electrolyte which is the basic unit for the battery Each cell has a nominal voltage of 2 V A battery is a module consisting of single or multiple cells in a shell Each battery has a nominal voltage of 2 V 6 V or 12 V Figure 4 26 Battery settings 1 Figure 4 27 Battery settings 2 ...

Page 132: ... in a battery string Specifies the number of batteries in a battery string 2 V battery 240 6 V battery 80 12 V battery 40 2 V battery 180 300 6 V battery 60 100 12 V battery 30 50 Number of battery strings Specifies the number of battery strings connected in parallel 1 1 4 Installation time A battery maintenance reminder is displayed when the maintenance time counted from the installation time com...

Page 133: ...Enable the UPS will restart as soon as the mains resumes If EOD restart is disabled clear the alarm manually or enable the restart function for the UPS Enable Disable Enable EOD restart delay min If EOD restart is set to Enable the UPS starts working after the time set for EOD restart delay when the input recovers from the power failure upon EOD 10 1 1440 Sched shallow dis test When certain condit...

Page 134: ...or disabled Monitoring interface card MUS05A provides four routes of configurable output dry contact signals The dry contact extended card MUE07A uses five input and five output signals currently Item Description System Power Unit MUE05A connection Specifies the MUE05A connection status Independent input signals can be enabled only when this parameter is set to Enable In use In use Batter ground f...

Page 135: ...ction MUE07A DO_4 Action MUE07A DO_5 Action Controls the status of DO ports on the MUE07A extended dry contact card MUE07A DI_1 valid MUE07A DI_2 valid MUE07A DI_3 valid MUE07A DI_4 valid MUE07A DI_5 valid If the DI port valid setting is closed the corresponding DI port executes the specified action for example raises an alarm when the DI port detects a short circuit If the DI port valid setting i...

Page 136: ...28 Item Description System Power Unit MUE07A DI_4 MUE07A DI_5 User Settings Figure 4 29 User settings 1 Figure 4 30 User settings 2 Item Description Default Value Value Range Language Twelve languages are supported English English Chinese Spanish Dutch French German Italian Polish Portuguese Russian Swedish ...

Page 137: ... Set the date and time as required Intelligent Temp Detect Item Description Default Value Value Range Internal temperature abnormal alarm If you set this parameter to Enable an alarm is generated when the temperature reaches the preset value Enable Disable Enable 4 1 3 4 Maintenance Table 4 18 Maintenance description Maintenance Item System Power Unit Bypass Unit USB Operations USB operations N A ...

Page 138: ...r unit Estimating the fan life of the bypass On the System Info screen tap to display the Maintenance screen Figure 4 31 System maintenance On the System Info screen tap the power unit icon to access the Power Cabinet N Info screen and tap to display the Maintenance screen of the current power unit Figure 4 32 Power unit maintenance Choose Monitoring Param Settings System Settings on the WebUI if ...

Page 139: ...tery maintenance when no alarm is active on the UPS Otherwise the UPS may supply no power A proportion of battery capacity will discharge during battery maintenance This reduces the discharge time before the next charge Do not perform battery maintenance when a D G is connected Perform battery maintenance periodically to increase the battery lifespan and improve the UPS reliability Battery mainten...

Page 140: ...itchover Only professional personnel are allowed to use this function Clear faults before performing ECM active standby switchover After an ECM is inserted active and standby switchover is supported only after the ECM is configured and starts working properly about 30 seconds If the ECM to be maintained is still working perform ECM active standby switchover on this screen a dialog box is displayed...

Page 141: ... About On the About screen you can view the model manufacturer monitoring version and power version Figure 4 35 About 4 1 4 System Status On the System Status screen you can view the data and information related to the mains input bypass input load and battery by tapping corresponding icons Figure 4 36 System status ...

Page 142: ...n functions Common Function Item System Power Unit Bypass Unit AC Output System AC output data AC output data of this power unit AC output data of the bypass unit UPS Load System load data Load data of this power unit System load data Mains Input System mains input data Mains input data of this power unit N A Inv ON Starting the inverter of the single UPS N A N A Inv OFF Shutting down the inverter...

Page 143: ...storical alarms of this power unit Historical alarms of the bypass unit 4 2 WebUI 4 2 1 Login Context Internet Explorer 11 is used as the example browser The system supports Internet Explorer 11 and Firefox 31 0 Procedure Step 1 Open the browser and choose Tools Internet Options Step 2 On the Advanced tab page ensure that Use TLS 1 0 and Use TLS 1 1 are selected and click OK Figure 4 39 Settings i...

Page 144: ...n exporting parameter setting system control system configuration and system maintenance operator common user Changeme Only browses the system running information exports system information starts shuts down the inverter rectifies faults and controls the buzzer Other control and maintenance functions that may affect system operation are invisible and parameters cannot be set browser browsing user ...

Page 145: ...e range Table 4 21 Monitoring details Number Area Function 1 Running status area Displays the power flow and UPS running information 2 Menu bar Displays alarms and real time data sets parameters and provides control commands The Active Alarms page is displayed by default 3 Information area Displays system monitoring information The parameters that have been introduced in the LCD section are not de...

Page 146: ...e alarm threshold C An alarm is generated when the ambient temperature is lower than the threshold specified by this parameter 10 20 to 0 Environ High TempEnable If this parameter is set to Enable the UPS detects the high ambient temperature Enable Disable Enable Environ Low TempEnable If this parameter is set to Enable the UPS detects the low ambient temperature Enable Disable Enable EPO detectio...

Page 147: ...module is rotated every 30 days 30 1 100 D G ECO bypass supply Indicates whether ECO bypass is allowed to supply power in D G mode When the D G is connected to the dry contact signal GEN If this parameter is set to Enable the system can enter ECO bypass mode when the D G supplies power to the bypass and the ECO function is enabled If this parameter is set to Disable the system is not allowed to en...

Page 148: ...lue Range Input adaptability The value of Input adaptability can be Strong or Weak Strong input adaptability applies to the D G or input sources whose input current has high frequency oscillation In this mode the total distortion of the input current waveform THDi is poor but the system is stable Weak input adaptability is suitable for mains and AC input sources Strong Strong Weak Output Settings ...

Page 149: ... Inverter asynchronous alarm can be displayed on the LCD when the inverter cannot track the bypass frequency change Normal power supply is not affected no matter whether this parameter is set to Enable or Disable Disable Disable Enable Bus overvoltage recovery Specifies whether to automatically clear the alarm and restart the power module when the rectifier or inverter shuts down due to a bus over...

Page 150: ...t shuts down the inverter to prevent the fault from expanding Disable Disable Enable Bypass Settings Item Description Default Value Value Range BPM mode upon BPM overtemp Specifies whether to start bypass mode when overtemperature occurs Enable Disable Enable BPM cur eql function N A Disable Disable Enable Lightload BPM cur eql detect Enable or disable the light load bypass current imbalance alarm...

Page 151: ... two parameters do not need to be set Item Description Default Value Value Range Float volt temp comp If this parameter is set to Enable the float voltage is calibrated based on the battery temperature when a battery temperature sensor is connected The parameter is configurable in any mode Enable Disable Enable Float volt temp comp coef mV C cell Calibration coefficient during float voltage temper...

Page 152: ...time When the discharge time reaches this value the UPS powers off If the time is set to 0 hours battery discharge protection is not implemented 24 0 48 Undertemp alarm thresh C Battery temperatures can be monitored in a timely manner If a low or high battery temperature alarm is detected the charging current limit decreases to 0 03 CA Battery charging stops if a battery overtemperature protection...

Page 153: ... less than the warning threshold Disable Disable Enable Remain cap warning An alarm is generated if this parameter is set to Enable and the remaining capacity is less than the warning threshold Disable Disable Enable Intelligent hibernation If this parameter is set to Enable the intelligent battery hibernation function is enabled Disable Disable Enable Thres of low batt SOC over dry contact If an ...

Page 154: ...unication settings 4 2 2 3 Control Figure 4 45 System control Figure 4 46 Power unit control 4 2 3 Query 4 2 3 1 Historical Alarms Table 4 22 Query description Cabinet Historical Records System Query all historical alarms Power unit Query historical alarms of the current power unit Bypass unit Query historical alarms of the bypass unit ...

Page 155: ...n example Figure 4 47 Historical alarms 4 2 3 2 Logs Table 4 23 Query description Cabinet Log Record System Export historical logs of all units excluding battery test logs Power unit Query and export the battery test logs of the current power unit Bypass unit Figure 4 48 Logs 4 2 4 Config 4 2 4 1 User Management On the home page choose Config User Mgmt ...

Page 156: ...case and lowercase letters digits and underscores The password contains 6 to 20 characters and at least two types of uppercase letters lowercase letters digits and underscores If the LUI password complexity check is disabled the user password is required to be a string of six to eight digits If the password complexity check is enabled the user password is required to be a string of 6 20 characters...

Page 157: ...ig SNMP Download HUAWEI_UPS_MIB The SNMP Trap is used to set the IP address of a server on which the NMS software is installed The trap port needs to be the same as that on the NMS If SNMP Trap is incorrectly set or not set system information will be lost or not reported in time The certificate is used for Secure Sockets Layer SSL encryption protection for WebUI login You need to apply to a third ...

Page 158: ...tificate with the certificate trusted by them ModbusTCP CA Certificate Management Import a CA certificate to verify the validity of the ModbusTCP access certificate ModbusTCPAuthentication Verify the identity legitimacy of both parties to ensure data security for both parties in ModbusTCP communication After eUPS certificate management is configured a certificate can be imported on the WebUI to re...

Page 159: ...set on the page of the UPS5000 monitor display module MDU must be the same as the setting on the RCCMD client SSL Encrypted Transmission is set to Enable by default as shown in Figure 4 53 If it is set to Disable the RCCMD certificate controls will not be displayed on the page as shown in Figure 4 54 If SSL Encrypted Transmission is set to Disable a message indicating there is a risk will be displ...

Page 160: ...SL encrypted transmission enabled by default Figure 4 54 SSL encrypted transmission disabled Event Configuration The MDU supports 17 alarm events and a maximum of 50 jobs can be added for each event as shown in Figure 4 55 Figure 4 55 shows the buttons on the Event Configuration page and Table 4 24 describes these buttons ...

Page 161: ...ou can view all jobs of all events by clicking this button 2 Button for expanding one event You can view all jobs of the event by clicking this button 3 Button for adding one job You can add one job for the event by clicking this button 4 Button for adding one job for events Select multiple events and you can add one job for the selected events at the same time by clicking this button 5 Button for...

Page 162: ... If you click this button the job will be performed and a message showing test succeeds or fails will be displayed on the page Adding one job for one event Select one event for example Inverter on click the button for adding one job and the page for adding a job for the event is displayed When adding a job the job types to be selected are RCCMD Shutdown RCCMD Message RCCMD Execute and RCCMD TRAP R...

Page 163: ...fy the RCCMD client IP address port and message to be conveyed The RCCMD client will receive the message For example enter This is a test message Figure 4 58 RCCMD message RCCMD Execute Specify the RCCMD client IP address port and command to be executed For example enter SHUTDOWN and the RCCMD client will shut down the computer after receiving the command ...

Page 164: ...o all connected RCCMD clients based on the sending mechanism If you want to define the TRAP message by yourself you can use the TRAP signal to display the UPS information For example if you enter INVOLT V the RCCMD client will receive the UPS input voltage value for example single phase 220 V three phase A 220 V B 220 V C 220 V Table 4 26 lists the signal names that can be entered Figure 4 60 RCCM...

Page 165: ...e times N A INPHASES Input phases N A OUTPHASES Output phases N A When you add a job five sending methods are available The latter three methods can take effect only when the event condition is still true after the specified seconds Immediately once After the event happens the job will be sent to the RCCMD client immediately Scheduled in X seconds After the event happens the job will be sent to th...

Page 166: ...tificate RCCMD certificate key and RCCMD CA certificate can be uploaded as shown in Figure 4 61 If the RCCMD certificate or RCCMD CA certificate is not uploaded the default certificate provided by the system is used for communication After the certificate is uploaded successfully click Submit The WebUI of the MDU will restart and the uploaded certificate will be used for communication Figure 4 61 ...

Page 167: ...ator of the MDU for access rights and add the NMS information to the NMS access list of the MDU The NMS address and access right settings are used for adding information about the NMS accessing the MDU including the NMS address access right and Trap port For details about how to add an NMS over a web browser see Figure 4 63 Figure 4 63 Setting the SNMP Trap Managing the UPS Take the UNMS II of Gen...

Page 168: ... UPS system generates an alarm executes commands on the RCCMD client Receives the message UPS alive check sent by the RCCMD client and replies with the system status Configures and saves the address and port for receiving the shutdown command and the message sending mechanism For the method of installing the RCCMD client see the manual related to the RCCMD 4 2 5 2 RCCMD Event Shutdown and Message ...

Page 169: ...ver WebUI Step 4 Configure events If you set the job type to RCCMD Message under Inverter on specify the IP address and port of the RCCMD client The port is 6003 by default If you need to modify the port modify the port on the RCCMD client at the same time to keep them the same Enter the message to be sent and set the message sending mechanism For example set it to Immediately once Step 5 On the M...

Page 170: ...ther the UPS and RCCMD communicate properly the RCCMD can receive messages sent by the MDU Procedure Step 1 On the RCCMD client add the IP address of the MDU that detects heartbeat as shown in Figure 4 65 Step 2 The UPS5000 MDU supports both ways of heartbeat detection If the job configured for the MDU event is set to RCCMD TRAP the RCCMD client needs to be set to by the use of CS121 UPSMAN Traps ...

Page 171: ...00 S 1600 kVA User Manual 4 User Interface Issue 04 2020 03 03 Copyright Huawei Technologies Co Ltd 163 Figure 4 66 Detecting heartbeat manually Figure 4 67 Detecting heartbeat manually and successfully End ...

Page 172: ...h by measuring Before powering on the UPS ensure that all the UPS switches and upstream switch are OFF Procedure Step 1 Close the upstream mains input switch Measure the voltage and frequency of the UPS input switch and upstream input switch The line voltage range is 138 485 V AC and the frequency range is 40 70 Hz Step 2 Turn on SPD switch 1QFS and 2QFS Step 3 Turn on output circuit breaker Q5 1 ...

Page 173: ...e MDU starts properly set the language time network parameters system parameters and battery parameters on the Settings Wizard screen Set system parameters with caution because the settings determine normal UPS operation Output voltage level refers to the line voltage level Set it based on site requirements Set Output frequency correctly otherwise loads may be affected and the UPS may not work pro...

Page 174: ...es Figure 5 1 Settings Wizard Set the time and date correctly Incorrect time and date will cause false fault analysis during maintenance or repair After you set network parameters connect the UPS to the network over a network cable which enables you to remotely manage the UPS If you do not need remote management retain the default network parameter settings Step 2 Optional On the LCD of the system...

Page 175: ...tent parallel param alarm is generated choose System Info Settings on the LCD of the system and tap Parameter Sync Step 4 On the LCD of the system view the system running status diagram to check that the UPS is working in bypass mode End Offline Startup The Service Expert app can be downloaded from Google Play and can run on Android For offline startup enter the barcode and the verification code o...

Page 176: ...nce Inv ON You can obtain the Bar code and Verification code from the screen as shown in the following figure Figure 5 3 Offline startup The values of the Bar code and Verification code in the figure are for reference only The actual values prevail Step 5 Enter BarCode and Codes obtained from the MDU on the Offline Activation screen Tap Generate PWD to generate a startup password ...

Page 177: ...nter the generated startup password in Figure 5 3 to start the UPS End 5 1 2 2 Non initial Startup Starting the UPS on the MDU Step 1 Choose Common Functions Inv ON You can also start the inverter by choosing System Info Maintenance Inv ON Step 2 In the displayed login screen select a user name and enter the password Step 3 In the displayed dialog box tap Yes to start the inverter End Starting the...

Page 178: ...LS 1 1 are selected and then click OK Figure 5 5 Setting the Internet options Step 3 In the address box of the browser enter https UPS IP address Step 4 Enter the correct user name and password and click Login Figure 5 6 Logging in to the WebUI Step 5 On the home page of the WebUI choose Monitoring Control click Inv ON and confirm the operation to start the inverter ...

Page 179: ...ts the UPS works in normal mode The Bypass mode alarm disappears Procedure Step 1 After confirming that the battery strings are properly connected close the battery string input circuit breaker If there are multiple battery strings close the circuit breaker for each battery string and then the general circuit breaker between battery strings and the UPS The No battery alarm disappears from the MDU ...

Page 180: ...ontrol module 1 and power unit 3 uses the dry contact ports on control module 2 You need to set BCB box parameters on the LCD of each power unit End 5 1 5 Optional Setting Parameters for the Fan Unit Prerequisites The fan unit has been configured Procedure Step 1 Choose System Info Settings System Settings Set Top outlet fan to Enable Figure 5 9 Setting parameters for the top outlet fan End ...

Page 181: ...down Procedure Step 1 Shut down the inverter Shutting down the inverter on the LCD On the system LCD choose Common Functions Inv OFF After confirmation the inverter is shut down You can also choose System Info Maintenance Inv OFF to shut down the inverter Shutting down the inverter on the WebUI On the system WebUI choose Monitoring Control and click Inv OFF After confirmation the inverter is shut ...

Page 182: ...to check that the voltage of a battery string is greater than a certain value single battery voltage x number of batteries in the battery string Step 2 Turn off input switches Q1 1 Q1 2 and Q1 3 and the upstream bypass input switch Turn on the battery circuit breaker If there are multiple battery strings turn on the circuit breaker for each battery string and then the general circuit breaker betwe...

Page 183: ...ites The system is working in inverter mode Context The UPS is set to non ECO mode by default Set the UPS to ECO mode when energy saving is required In ECO mode the bypass takes priority over the inverter in supplying power If the bypass is disconnected the UPS transfers to normal mode To avoid frequent transfer between ECO mode and normal mode do not set the ECO mode when the bypass input is unst...

Page 184: ...ss mode manually start the UPS inverter After the inverter starts the UPS still works in bypass mode and the inverter is on standby If the bypass is not normal the inverter supplies power immediately If the inverter is not started the UPS may be disconnected Figure 5 13 System status in ECO mode End 5 6 Testing Batteries 5 6 1 Forced Equalized Charging Test Context ...

Page 185: ...aintenance Battery Maint Step 2 Tap Start next to Forced Equalized Charging to start a forced equalized charging test Figure 5 14 Starting a forced equalized charging test The forced equalized charging test automatically stops in any of the following cases The forced equalized charging test duration reaches the forced equalized charging protection time 12 24 h 18 h by default An alarm is generated...

Page 186: ...nterval as required After setting is complete the system will perform automatic shallow discharge tests based on the settings End Manual Shallow Discharge Test Step 1 On the home screen of the power unit LCD choose Power Unit N Info Maintenance Battery Maint Step 2 Tap Start next to Shallow Dis Test to start a shallow discharge test Figure 5 15 Starting the shallow discharge test When the battery ...

Page 187: ...nerated Procedure Step 1 On the home screen of the power unit LCD choose Power Unit N Info Maintenance Battery Maint Step 2 Tap Start next to Capacity Test to start a capacity test Figure 5 16 Starting a capacity test The capacity test automatically stops in any of the following cases The battery discharge voltage reaches the end of discharge EOD voltage plus 0 01 V The load fluctuation exceeds 10...

Page 188: ...ueried from the Log drop down list box and click Export End 5 7 Performing EPO After the EPO button is turned on the UPS supplies no power and the loads shut down In maintenance bypass mode the UPS continues to supply power even after the EPO button is turned on Press the external EPO switch that connects to the dry contact card or remove the 4 pin terminal on the EPO port of the dry contact card ...

Page 189: ...d of the bypass unit Step 2 Clear the EPO alarm On the LCD On the LCD of the system choose System Info Alarms and tap Clear Faults After confirmation the EPO alarm will be cleared Figure 5 19 Clear Faults On the WebUI On the WebUI of the system choose Monitoring Control System Commands and Tests and click Clear Fault to clear the EPO alarm Figure 5 20 Clear Fault Step 3 Check that the EPO alarm is...

Page 190: ...p 4 Start the inverter End 5 9 Data Export Prerequisites You have logged in to the WebUI Context The following data can be exported Historical alarms Logs E Label Fault Data This topic describes how to export Historical Alarms Procedure Step 1 Choose Query Historical Alarms and set Severity Generated and Cleared Figure 5 21 Querying historical alarms You do not need to query logs Choose Query Logs...

Page 191: ... Huawei technical support Only maintenance engineers can maintain power modules and bypass modules Maintain UPSs regularly based on the following requirements Otherwise the UPSs may fail to operate properly and the service life may be shortened 6 1 1 Monthly Maintenance Table 6 1 Monthly maintenance Check Item Expected Result Troubleshooting Operating environment Ambient temperature 0 40 C Humidit...

Page 192: ... a white paper and the paper does not turn black Remove the dust especially from the air filter on the front door or replace the air filter Parameter configuration The configuration of the output voltage grade frequency number of batteries and battery capacity meets requirements Reset the parameters Status record Record the three phase load rate and output power factor If an exception occurs check...

Page 193: ...apply other protective measures Wear insulated gloves and a protective coat in case of electrolyte overflow When moving batteries avoid handling the battery upside down handle batteries gently and pay attention to personal safety Keep the battery switch off when installing or maintaining the batteries 6 2 1 Precautions for Battery Maintenance Before battery maintenance get the tools such as handle...

Page 194: ...ery string Equalized charging voltage 2 35 V cell 1 x Single battery voltage 2 x Number of batteries in a battery string Float charging voltage 2 25 V cell 1 x Single battery voltage 2 x Number of batteries in a battery string 1 If the voltage drop between the battery string output terminals and the battery input terminals at the UPS side is greater than 1 of the battery string voltage check wheth...

Page 195: ...ications requirement perform a complete forcible equalized charging for the battery and check again whether the voltage is normal 3 If the fault persists contact Huawei technical support Shallow discharge test recommended Conduct a shallow discharge test when the UPS is backed up to verify that the batteries can discharge normally 1 If the batteries cannot discharge normally locate the fault for a...

Page 196: ...em Expected Result Troubleshooting from positive terminals to negative terminals 2 The tightening torque of each battery screw meets the requirements of the battery manufacturer A torque wrench is used for checking the torque After checking that the battery screws meet the requirements mark the screws for later check ...

Page 197: ...box is configured To restore battery discharge close the battery switch in the BCB box if any first To restore battery discharge after batteries reach EOD use one of the following methods 1 Switch to another battery string Ensure that each battery has a voltage greater than the EOD voltage and 11 3 V cell 2 Restore the mains power supply to start the inverter Close the battery switch and charge ba...

Page 198: ...ule The charger experiences overcurrent Replace the power module The charger experiences undervoltage Check whether the configured number of batteries is correct If the value is correct but the alarm persists replace the power module The UPS works in bypass mode and does not transfer to inverter mode When the mains is normal the UPS works in bypass mode and does not transfer to inverter mode Set t...

Page 199: ...contacts RS485 ports and FE ports Supports Simple Network Management Protocol SNMP Dimensions H x W x D 2200 mm x 4200 mm x 1000 mm Weight 2800 kg Table 8 2 Environmental specifications Item Specifications Operating temperature 0 C to 40 C Storage temperature 40 C to 70 C Relative humidity 0 95 RH non condensing Altitude 0 1000 m The power is derated as described in IEC62040 3 when the altitude is...

Page 200: ...usceptibility EN IEC62040 2 EN IEC61000 4 6 Electrical fast transient EFT EN IEC62040 2 IEC61000 4 4 Surge protection EN IEC62040 2 IEC61000 4 5 Power frequency magnetic field IEC61000 4 8 Table 8 4 Mains input electrical specifications Item Specifications System Three phase four wire and PE Rated voltage 380 V AC 400 V AC 415 V AC line voltage Voltage range 80 280 V AC phase voltage At 0 40 C not...

Page 201: ...s the output power is derated to 90 If there are 32 to 35 batteries the output power is derated to 80 If there are 30 to 31 batteries the output power is derated to 70 2 V batteries 180 300 batteries 240 batteries by default If there are 240 to 300 batteries the output power is not derated If there are 239 to 216 batteries the output power is derated to 90 If there are 215 to 192 batteries the out...

Page 202: ...ce 3 phase imbalance 2 Overload capability Inverter overload capability 100 load 110 transfer to bypass mode after 60 minutes at a temperature lower than 40 C 110 load 125 transfer to bypass mode after 10 minutes tolerance 0 1 min at a temperature ranging from 0 C to 30 C transfer to bypass mode after 3 minutes at a temperature ranging from 30 C to 40 C 125 load 150 transfer to bypass mode after 1...

Page 203: ... 1600 kVA User Manual 8 Technical Specifications Issue 04 2020 03 03 Copyright Huawei Technologies Co Ltd 195 Item Specifications 125 1000 load depends on overtemperature protection 1000 load running for 100 ms ...

Page 204: ...0 V the mains input is not normal if the mains voltage is less than 272 V the sampling circuit of the power module is not normal Replace the faulty module 3 Check whether the output or battery is incorrectly grounded 0001 2 Cable connections are incorrect The mains is not normal The mains input fuse for the power module is blown 1 Check whether cables to mains are disconnected loose or incorrectly...

Page 205: ...tage or cable connections with a multimeter 2 Check the voltage system and bypass voltage thresholds configured on the LCD 0010 2 The bypass frequency range is not correctly set The bypass input frequency is not normal 1 Check the bypass input voltage or cable connections with a multimeter 2 Check the bypass input frequency Check the rated frequency and frequency range configured on the LCD 0011 1...

Page 206: ...y overvoltage Minor The configured number of batteries is less than the actual number The battery neutral wire is not installed properly 1 Check whether battery parameters are correctly set 2 If they are correctly set certain batteries may be faulty 3 Check whether the battery neutral wire is correctly connected 0026 1 Low battery voltage Minor Battery discharge results in low battery voltage The ...

Page 207: ... The configured number of batteries is less than the actual number The actual number of batteries does not meet requirements 1 Check the battery voltage 2 Check that the configured number of batteries matches the actual number 3 Check that the actual number of batteries meets requirements 0036 2 Battery maintenance reminder Warning The time for maintenance arrives Maintain the batteries 0037 1 Bat...

Page 208: ... ready Critical The ready switch is OFF Close the ready switch 0060 4 Inverter abnormal Critical A load short circuit occurs A short circuit occurs inside the module This fault seldom occurs The output is incorrectly grounded 1 Check load cable distributions 2 Check whether the output is grounded 3 If the load cable connections are normal and the output is correctly grounded replace the power unit...

Page 209: ...limit 6 If the alarm persists replace the power module 0565 1 Load impact transfer to bypass Minor A large power RCD load is instantly connected or the output load short circuits The inverter bridge short circuits 1 Check the load 2 If the load is normal replace the power module 0566 1 Output overload Minor The load is excessive Derating reduces the rated system power The module is damaged 1 Check...

Page 210: ...l cable 0583 5 The inter rack carrier synchronization cable is broken 0583 6 The intra rack INVBYP cable is broken The parallel CAN bus is broken 0584 2 Inter rack par cable alarm Minor The inter rack parallel cable is faulty Replace the inter rack parallel cable 0584 4 The inter rack industrial frequency synchronization cable is broken 0085 1 EPO Critical The EPO button is pressed Restore the EPO...

Page 211: ...ning status is displayed See details about how to handle other alarms 0359 No power supplied Warning No power is supplied The running status is displayed See details about how to handle other alarms 0332 Output disabled Minor The output is disabled The running status is displayed See details about how to handle other alarms 0337 PDC bypass input breaker open Critical The bypass input circuit break...

Page 212: ...ndancy Minor The load is excessive The configured number of redundant modules is incorrect 1 Reduce the load 2 Decrease the configured number of redundant modules 0096 1 ECO volt Abnormal Minor The ECO bypass voltage or frequency is out of the preset range The ECO bypass voltage or frequency range is incorrectly set The bypass input sequence is reverse or the neutral wire is disconnected 1 Check t...

Page 213: ...that the Output freq track rate is properly set 0101 1 BSC signal abnormal Minor The dual bus connector is loose Parameters are set incorrectly 1 Check the dual bus connector 2 Check the parameter settings 3 The master BSC system is not supplying power 0102 1 Maint breaker misoperation Critical The user operation is incorrect 1 Shut down the inverter and then close the maintenance circuit breaker ...

Page 214: ...auge B BSC bus synchronization controller BCB BOX battery circuit breaker box BBB BOX battery bus bar box C CE Conformite Europeenne D DSP digital signal processing E ECO economic control operation EPO emergency power off ECM energy control module EOD end of discharge I IEC International Electrotechnical Commission L LCD liquid crystal display M MDU monitor display unit ...

Page 215: ...U power distribution unit R RS485 Recommend Standard 485 S SOC state of charge STS static transfer switch SNMP Simple Network Management Protocol T THDi total distortion of the input current waveform THDv total harmonic distortion of output voltage U UPS uninterruptible power system USB Universal Serial Bus V VRLA valve regulated lead acid battery ...