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51

 

 

R

EMOTE MAINTENANCE 

B

YPASS

 

An additional maintenance bypass may be installed within (or in addition to) the main switchboard, for example, to enable the UPS to 
be replaced without interrupting the power supply to the load, in this case respect the following details: 
 

 

It is mandatory to connect the "SERVICE BYPASS" terminal (see the “Installation Manual”, "Programmable IN 
– OUT signals" paragraph) to the NC auxiliary contact of the SERVICE BYPASS switch. Closing the SERVICE 
BYPASS  switch  opens  this  auxiliary  contact  which  informs  the  UPS  that  the  maintenance  bypass  has  been 
activated.  If  this  connection  is  not  present,  the  power  supply  to  the  load  may  be  switched  off  and  the  UPS 
damaged. 

 

NOTE

:  

Use cables with a cross sectional area that conforms to the indications given in "POWER CONNECTION INFORMATION" 
paragraph of the Installation manual. 

 

Use a double insulated cable with a cross section of 1mmsq to connect the "SERVICE BYPASS" terminal to the auxiliary 
contact of the remote maintenance bypass disconnect switch. 

 

 

Whenever  the  UPS  is  equipped  with  an  internal  isolation  transformer,  check  the  compatibility  between  the 

“remote 

maintenance bypass”

 and the neutral arrangement within the electrical installation.

 

 
 

DIAGRAM SHOWING REMOTE INSTALLATION OF THE MAINTENANCE BYPASS (USS3T MODEL

 

 

 

 

Main switchboard 

 

Internal connections of the UPS 

 

Programmable IN/OUT port (to be configured via the configuration software) 

 

INPUT switch: for correct sizing refer to the "Internal Protective Devices” paragraph 

 

OUTPUT switch: for correct sizing refer to the "Internal Protective Devices” paragraph, equipped with a normally closed 
auxiliary contact 

 

SERVICE BYPASS switch: for correct sizing refer to the "Internal Protective Devices” paragraph, equipped with a normally 
closed auxiliary contact 

 

 

Summary of Contents for AVARA Sentryum USS3M Series

Page 1: ...er Manual UNINTERRUPTIBLE POWER SUPPLY Series AVARA Sentryum SERIE USS3M USS3T 10 20 kVA 1 3 phase input 1 phase output USS3M 3 phase input 3 phase output USS3T On Line Double Conversion VFI Technolog...

Page 2: ...ccording to the current legislation in force in the country where the product is to be employed Please refer to Table 1 for identifying the materials DESCRIPTION MATERIAL Pallet Wood FOR Packaging box...

Page 3: ...CO MODE 14 SMART ACTIVE MODE 14 FREQUENCY CONVERTER MODE 14 STAND BY OFF MODE 14 OPERATING STATUS 14 NORMAL 14 STAND BY WITH BATTERY CHARGER OFF 14 STAND BY WITH BATTERY CHARGER ON 14 BATTERY WORKING...

Page 4: ...2 Auto restart 32 Auto power off 33 Enable default IN signals 33 Inverter output settings 33 Voltage setting 34 Frequency setting 34 Battery configuration 35 Battery test scheduling 35 Battery low tim...

Page 5: ...YSTEM OFF COMMAND 47 POWER OFF THE UPS WITHOUT ACCESS TO THE DISPLAY 47 OPTIONS 48 EXTERNAL BATTERY CABINET 48 BATTERY ROOM VENTILATION 49 SETTING THE RATED BATTERY CAPACITY SOFTWARE CONFIGURATION 49...

Page 6: ...6 TROUBLESHOOTING GUIDE 59 PREVENTIVE MAINTENANCE 62 INTRODUCTION 62 BATTERIES 62 FANS 62 CAPACITORS 62 TECHNICAL DATA TABLE 63...

Page 7: ...n board COM Communication Board It includes R E P O IN OUT signals interface USB communication port serial port PAR Parallel Board Communication interface card between UPS for parallel function SWBATT...

Page 8: ...ltimate solution is rated at output power factor 1 and defined as ON LINE double conversion technology in accordance with VFI SS 111 classification as set out in standard IEC EN 62040 3 and it provide...

Page 9: ...the UPS receives energy from the mains supply the DSP will ensure that the connected batteries remain charged The DSP also monitors the amplitude and frequency of the mains voltage the amplitude and...

Page 10: ...ernal battery fuse holders SWBATT 3 Battery start button COLD START 10 Mains input switch SWIN 4 Communication ports R E P O IN OUT SIGNAL 11 Output switch SWOUT 5 Communication ports USB SERIAL 12 Ma...

Page 11: ...COLD START 11 Output switch SWOUT 4 Communication ports R E P O IN OUT SIGNAL 12 Manual bypass switch SWMB 5 Communication ports USB SERIAL 13 Brake plate 6 Parallel card optional 14 Bypass input swi...

Page 12: ...1 Output switch SWOUT 4 Communication ports R E P O IN OUT SIGNAL 12 Manual bypass switch SWMB 5 Communication ports USB SERIAL 13 Brake plate 6 Parallel card optional 14 Bypass input switch SWBYP 7 S...

Page 13: ...he USB port is to be used as an alternative to the RS232 serial interface USB port function is only guaranteed when using a cable no longer than 1 5m If a longer cable is required the use of the RS232...

Page 14: ...ent from the input frequency This configuration automatically disables the bypass line FREQUENCY CONVERTER mode can be operated with and without connected batteries WARNING Do NOT switch on the SWMB m...

Page 15: ...ection acts by means of a sensing circuit which turns off the inverter if a fault within the static switch is detected In this condition to avoid interrupting the supply to the connected load the UPS...

Page 16: ...ion mark will also be present indicating the number of alarms active at that time In parallel system configuration the status bar shows M if the UPS is master or S if the UPS is slave From the top of...

Page 17: ...hase 2 load level Battery status Phase 3 load level System status Manual bypass switch closed SWMB In general the color and the shape of the icons provide instant information to the status of the syst...

Page 18: ...ndicate the current operating mode or another operational system state NORMAL MODE means that the UPS is working in the expected operational state for the configured operating mode e g when in ON LINE...

Page 19: ...as shown in the examples below The user can return on the home page at any time by tapping the Home icon on the status bar The following are some examples of the home page whilst displaying various op...

Page 20: ...20 Home page displaying BATTERY WORKING status Home page displaying MANUAL BYPASS SWITCH CLOSED Home page with alarm drop down list opened...

Page 21: ...he icons in the Home page Pressing one of the four section icons Input 1 Bypass 2 Battery 3 Output 4 will open the relative measurements page Mains Input page displays the status and the parameters re...

Page 22: ...lst the symbol is negative if the battery is under charge The charge level is estimated by an algorithm that computes the energy flowing to and from the batteries and the voltage level The autonomy is...

Page 23: ...and programmed using the configuration software Sensor status page displays the temperature of the system and of the power heatsinks The Ext Bat value will be shown if a Battery Cabinet external tempe...

Page 24: ...depending on the preset access level Buzzer toggle button UPS info Settings menu Event log COMMAND PANEL To access the Command Panel tap the Command launcher icon From this page it is possible give co...

Page 25: ...bypass command O to switch the load back onto the inverter WARNING In this condition a power outage will lead to a loss supply to the connected load The UPS will behave in different ways depending on...

Page 26: ...t will start as soon as these conditions are met Press the Battery test icon to execute the battery test A confirmation is required The progress bar will show the progress of the battery test BATTERY...

Page 27: ...r Auto restart the set time delay between the detection of the line presence and the automatic UPS turn on in seconds Auto power off the set load percentage below which the UPS shuts down Battery low...

Page 28: ...iguration page DISPLAY SETTING Display configuration pages To save any configuration setting Press the Save icon and confirm to store any new values Press return icon button to go back to the main set...

Page 29: ...e and time again SCREEN SAVER AND BUZZER This page enables the user to Define the display inactivity period to turn off the display backlight Disable enable the alarm buzzer Default Buzzer ENABLED Scr...

Page 30: ...ss the system log In this page the user can view the UPS event history The rise and fall indicate respectively when the alarm related to the event happened and when it was cleared System log page By u...

Page 31: ...ord is required Insert the preset password expert to access the Expert level Expert level selection page Expert password page NOTE 1 If the display goes into standby backlight off the access level wil...

Page 32: ...e Chapter Operating modes for further details regarding these modes AUTO RESTART If during battery operation the system switches off due to the end of autonomy a remote shutdown command or due to a se...

Page 33: ...ogrammable input signals Refer to Table 4 2 Setting for input signals default configured from the display panel paragraph INVERTER OUTPUT SETTINGS From this page the user can set the output voltage of...

Page 34: ...al configuration page 2 Percentage of power derating with low output voltage FREQUENCY SETTING To set the desired output frequency tap on the corresponding select box Preset frequencies are 50 and 60...

Page 35: ...tery tests in order to regularly monitor the battery health Battery testing configuration page It is possible to schedule the battery test in three different ways Every n hours the UPS will start the...

Page 36: ...to the Expert level it is possible to create another two levels POWERUSER LEVEL The PowerUser level allows the default commands and settings as provided by the factory configuration All these availab...

Page 37: ...ange based on the used access level When a password protective level is activated a pre set password permit to access the available command for that level If the display goes in standby backlight off...

Page 38: ...or load off alarm Sound F This sound is emitted if a battery overvoltage fault occurs Sound G This sound is emitted in case of a battery test fault The buzzer emits ten beeps The alarm signal indicat...

Page 39: ...eutral 230V 220 240V custom 208V 200V Expert Output frequency Selection of the inverter frequency 50Hz 50Hz 60Hz Expert Automatic battery test Enables and schedules the automatic battery test 40 h OFF...

Page 40: ...ion is opened the UPS will receive a manual bypass command IN 2 SWOUT Aux open By connecting pins 2 and 6 to a normally open contact auxiliary contact of the external output switch the UPS will receiv...

Page 41: ...steps Close SWMB Close the protective devices upstream to the UPS Verify there isn t an output short circuit in the wiring system Open the protective devices upstream to the UPS Open SWMB Close the p...

Page 42: ...y the inverter The buzzer should start and the system status should read DISCONNECTED FROM THE LOAD This indicates that the output switch SWOUT is not closed and the load is not supplied From the menu...

Page 43: ...e batteries Verify that no anomalies are present on the status bar except for the anomalies referring to the absence of input and bypass mains and the Output Switch open From the Command Panel page pr...

Page 44: ...goes into Battery Working status and that the output voltage remains present and stable by checking the system output page The buzzer should start to inform the user that the UPS is running from batt...

Page 45: ...e maintenance bypass will shut off the power supply to the load 3 During this phase with a load powered via the maintenance bypass any disturbances on the mains power supply line of the UPS will direc...

Page 46: ...se the bypass line is represented with a blue filled line as indicated in the following image The bypass line is represented with a filled blue line In this condition it is possible to open the manual...

Page 47: ...N Command Verify that the system status changes to LOAD FORCED ON BYPASS in a few seconds Verify the output voltages on the System measurements page and verify that no anomalies are present on the sta...

Page 48: ...to each other in order to avoid loops For EMI reasons if possible place the UPS and Battery Cabinet side by side in order to keep the cable length as short as possible suggested 3mt maximum If it is n...

Page 49: ...hat the UPS is working properly simulate a black out by opening the SWIN input disconnect switch of the UPS The load must continue to be powered the status light must change to orange and the buzzer w...

Page 50: ...e connection of a temperature probe for a Battery Cabinet placed adjacent to the UPS or up to 10 meters away If this distance is insufficient then it is possible to extend it up to 25 meters To instal...

Page 51: ...ION INFORMATION paragraph of the Installation manual Use a double insulated cable with a cross section of 1mmsq to connect the SERVICE BYPASS terminal to the auxiliary contact of the remote maintenanc...

Page 52: ...ct EXTERNAL SYNC KIT In order to synchronise the inverter output to an external source a synchronisation kit is available This kit contains an isolated single phase low voltage output transformer SELV...

Page 53: ...switch which is parallel to the UPS is incompatible with the inclusion of the transformer In any event if the remote maintenance bypass is inserted make sure at the time when the remote bypass switch...

Page 54: ...e as a kit with special dust filtering on the XTD UPS series This kit is designed for UPS located within a dusty environment The adding of the filter if correct maintenance works are carried out does...

Page 55: ...y mode S45 Frequency converter mode S46 Frequency converter Saving mode S47 Ready for emergency S50 Battery Working S51 Battery Working forced S52 Battery low S60 Temporary bypass S61 On bypass due to...

Page 56: ...open A13 Bypass voltage abnormal L1 A14 Bypass voltage abnormal L2 A15 Bypass voltage abnormal L3 A16 Bypass frequency abnormal A17 Bypass switch open A18 Bypass voltage out of range A22 Load user thr...

Page 57: ...25 Output negative power F26 Output contact short cct L1 F27 Output contact short cct L2 F28 Output contact short cct L3 F29 Output fuse contact fault L1 F30 Output fuse contact fault L2 F31 Output fu...

Page 58: ...e L2 L19 Inverter undervoltage L3 L20 Inverter sinewave abnormal L1 L21 Inverter sinewave abnormal L2 L22 Inverter sinewave abnormal L3 L23 Output overload L1 L24 Output overload L2 L25 Output overloa...

Page 59: ...the mains to the terminals as indicated in the Installation manual UPSTREAM PROTECTIVE DEVICE OPEN Reset the protective device Warning check that there is no overload or short circuit at the output of...

Page 60: ...upstream WARNING check that there is no overload or short circuit at the output of the UPS BYPASS SWITCH OPEN SWBYP ONLY IF BYPASS IS SEPARATE FROM MAINS Close the bypass switch SWBYP if present THE A...

Page 61: ...d wait for the temperature of the heat sink to drop Switch off the maintenance bypass FAULT IN TEMPERATURE PROBE OR UPS COOLING SYSTEM Insert the maintenance bypass SWMB without turning off the UPS so...

Page 62: ...the different personalised preventive maintenance options BATTERIES Thanks to an advanced battery care system our UPS preserve the batteries health both during charging and discharging phase For exam...

Page 63: ...Precision of output voltage with respect to 400 230 Vac output voltage 1 Static stability 0 5 Dynamic stability EN62040 3 Performance Class 1 Output voltage harmonic distortion with standardized linea...

Page 64: ...MAN_AVARA Sentryum_USS3T_USS3M_10 20kVA_EN_2020_04_04_0MNS3TK10NPENUD docx 0MNS3TK10NPENUD...

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