EPS PSI 9040-170 3U, Operating Manual

Page 1: ...ate 12 2014 Operating Guide PSI 9000 3U DC High Efficiency Power Supply Attention This document is only valid for devices with TFT display and firmware KE 2 09 HMI 2 01 and DR 1 6 3 or higher For availability of up dates for your device check our website or contact us ...

Page 2: ......

Page 3: ...32 2 3 6 Grounding of the DC output 33 2 3 7 Connecting the Share bus 33 2 3 8 Connection of remote sense 33 2 3 9 Installation of an AnyBus interface module 34 2 3 10 Connecting the analog interface 35 2 3 11 Connecting the USB port rear side 35 2 3 12 Initial commission 35 2 3 13 Commission after a firmware update or a long period of non use 35 3 OPERATIONANDAPPLICATION 3 1 Personal safety 36 3 ...

Page 4: ...he function generator 72 3 10 Other applications 73 3 10 1 Parallel operation in master slave MS 73 3 10 2 Series connection 76 3 10 3 Two quadrants operation 2QO 77 4 SERVICEAND MAINTENANCE 4 1 Maintenance cleaning 79 4 2 Fault finding diagnosis repair 79 4 2 1 Replacing a defect mains fuse 79 4 3 Firmware updates 80 4 3 1 HMI firmware update 80 4 3 2 Interface unit firmware update KE 80 4 4 Cali...

Page 5: ...0362 PSI 91500 30 3U 06230369 PSI 9040 340 3U 06230356 PSI 9040 510 3U 06230363 Changes and modifications for special models will be listed in a separate document 1 1 4 Symbols and warnings Warning and safety notices as well as general notices in this document are shown in a box with a symbol as follows Symbol for a life threatening danger Symbol for general safety notices instructions and damage ...

Page 6: ...vertical standing model DT Desktop model R Rack mount model in frame for wall mounting Maximum current of the device in Ampere Maximum voltage of the device in Volt Series 8 Series 8000 or 800 9 Series 9000 Type identification PS Power Supply usually programmable PSI Power Supply Intelligent always programmable ELR Electronic Load with Recovery Special models are always derived from standard model...

Page 7: ...pment and to the user For electronic loads do not connect power sources to equipment under power sparking may occur which can cause burns as well as damage to the equipment and to the source ESD regulations must be applied when plugging interface cards or modules into the relative slot Interface cards or modules may only be attached or removed after the device is switched off It is not necessary t...

Page 8: ...and cleaning of the equipment ensure that all employees who use the equipment have read and understood the manual Furthermore the users are to be regularly schooled in working with the equipment and the possible dangers provide all personnel who work with the equipment with the designated and recommended safety equipment Furthermore the operator is responsible for ensuring that the device is at al...

Page 9: ... a defect Critical The device and or the load could be damaged Signal OCP OverCurrent Shutdown of the DC output due to excess of the preset limit Non critical protects the load from excessive current consumption Signal OPP OverPower Shutdown of the DC output due to excess of the preset limit Non critical protects the load from excessive power consumption Signal PF Power Fail DC output shutdown due...

Page 10: ...ent 100 ppm Voltage regulation Adjustment range 0 40 V 0 80 V 0 200 V 0 360 V 0 500 V Accuracy 1 at 23 5 C 0 1 UMax 0 1 UMax 0 1 UMax 0 1 UMax 0 1 UMax Stability at 10 ΔUAC 0 02 UMax 0 02 UMax 0 02 UMax 0 02 UMax 0 02 UMax Stability at 0 100 load 0 05 UMax 0 05 UMax 0 05 UMax 0 05 UMax 0 05 UMax Rise time 10 90 ΔU Max 15 ms Max 15 ms Max 15 ms Max 15 ms Max 15 ms Display Resolution See section 1 9...

Page 11: ...laneous Cooling Temperature controlled fans front inlet rear exhaust Ambient temperature 0 50 C Storage temperature 20 70 C Humidity 80 not condensing Standards EN 61010 EN 61326 EMC TÜV approved acc IEC 61000 6 2 2005 and IEC 61000 6 3 2006 Class B Overvoltage category 2 Protection class 1 Pollution degree 2 Operational altitude 2000 m Digital interfaces Featured 1x USB B for communication 1x USB...

Page 12: ...0 mVPP 25 mVRMS 320 mVPP 25 mVRMS 300 mVPP 40 mVRMS Remote sensing compensation Max 5 UMax Max 5 UMax Max 5 UMax Max 5 UMax Max 5 UMax Fall time at no load after switching DC output off Down from 100 to 60 V less than 10 s Down from 100 to 60 V less than 10 s Down from 100 to 60 V less than 10 s Current regulation Adjustment range 0 20 A 0 340 A 0 510 A 0 340 A 0 140 A Accuracy 1 at 23 5 C 0 2 IMa...

Page 13: ...scellaneous Cooling Temperature controlled fans front inlet rear exhaust Ambient temperature 0 50 C Storage temperature 20 70 C Humidity 80 not condensing Standards EN 61010 EN 61326 EMC TÜV approved acc IEC 61000 6 2 2005 and IEC 61000 6 3 2006 Class B Overvoltage category 2 Protection class 1 Pollution degree 2 Operational altitude 2000 m Digital interfaces Featured 1x USB B for communication 1x...

Page 14: ...55 mVRMS 350 mVPP 70 mVRMS 800 mVPP 200 mVRMS 1600 mVPP 350 mVRMS 320 mVPP 25 mVRMS Remote sensing compensation Max 5 UMax Max 5 UMax Max 5 UMax Max 5 UMax Max 5 UMax Fall time at no load after switching DC output off Down from 100 to 60 V less than 10 s Current regulation Adjustment range 0 80 A 0 60 A 0 40 A 0 30 A 0 510 A Accuracy 1 at 23 5 C 0 2 IMax 0 2 IMax 0 2 IMax 0 2 IMax 0 2 IMax Stabili...

Page 15: ...ellaneous Cooling Temperature controlled fans front inlet rear exhaust Ambient temperature 0 50 C Storage temperature 20 70 C Humidity 80 not condensing Standards EN 61010 EN 61326 EMC TÜV approved acc IEC 61000 6 2 2005 and IEC 61000 6 3 2006 Class B Overvoltage category 2 Protection class 1 Pollution degree 2 Operational altitude 2000 m Digital interfaces Featured 1x USB B for communication 1x U...

Page 16: ...mVPP 40 mVRMS 320 mVPP 55 mVRMS 350 mVPP 70 mVRMS 800 mVPP 200 mVRMS 2400 mVPP 400 mVRMS Remote sensing compensation Max 5 UMax Max 5 UMax Max 5 UMax Max 5 UMax Max 5 UMax Fall time at no load after switching DC output off Down from 100 to 60 V less than 10 s Current regulation Adjustment range 0 210 A 0 120 A 0 90 A 0 60 A 0 30 A Accuracy 1 at 23 5 C 0 2 IMax 0 2 IMax 0 2 IMax 0 2 IMax 0 2 IMax S...

Page 17: ...laneous Cooling Temperature controlled fans front inlet rear exhaust Ambient temperature 0 50 C Storage temperature 20 70 C Humidity 80 not condensing Standards EN 61010 EN 61326 EMC TÜV approved acc IEC 61000 6 2 2005 and IEC 61000 6 3 2006 Class B Overvoltage category 2 Protection class 1 Pollution degree 2 Operational altitude 2000 m Digital interfaces Featured 1x USB B for communication 1x USB...

Page 18: ...x 49 821 570451 25 www eps germany de info eps germany de A Mains switch D Share Bus and remote sensing connection G Master Slave ports B Control panel E DC output view shows terminal type 1 C Control interfaces digital analog F AC input connection Figure 1 Front side Figure 2 Back side standard version 1 8 4 Views ...

Page 19: ...PS Stromversorgung GmbH Alter Postweg 101 86159Augsburg Germany Fon 49 821 570451 0 Fax 49 821 570451 25 www eps germany de info eps germany de PSI 9000 3U Series Figure 3 Left hand side Figure 4 Right hand side ...

Page 20: ...Page 20 EPS Stromversorgung GmbH Alter Postweg 101 86159Augsburg Germany PSI 9000 3U Series Fon 49 821 570451 0 Fax 49 821 570451 25 www eps germany de info eps germany de Figure 5 View from above ...

Page 21: ... or setting the parameter values in the menu Left knob push selection of the decimal position to be changed cursor in the current value selection Right knob turn adjusting the current power or resistance set value or setting parameter values in the menu Right knob push selection of the decimal position to be changed cursor in the current value selection 3 On Off Button for DC output Used to toggle...

Page 22: ...dded These enable the devices to be connected to standard industrial buses simply by changing or adding a small module The configuration if necessary at all is simple Thus the power supplies may for example be operated with other power supplies or even other types of equipment or controlled by a PC or PLC all using the digital interfaces In addition the devices offer as standard the possibility fo...

Page 23: ...e documentation It is usually available on the CD which is included with the device or as PDF download on the manufacturers website 1 9 5 Options These options are usually ordered along with the device as they are permanently built in or preconfigured during the manufacturing process Retrofitting upon request CABINET 19 rack Racks in various configurations up to 42U as parallel systems are availab...

Page 24: ...ge current and power are displayed Resistance set value of the variable internal resistance is only displayed by active resistance mode When the DC output is switched on the actual regulation mode CV CC CP or CR is displayed next to the cor responding actual values as show in the figure above The set values can be adjusted with the rotary knobs next to the display screen or can be entered directly...

Page 25: ...assignments These can be changed by tapping this area as long as it s not locked The display changes to The physical units below the depiction of the knobs shows the current as signment On a power supply the left knob is always assigned to the voltage U while the right knob can be switched by tapping the depiction The area will then show the assignment U I U P U R Left rotary knob voltage Right ro...

Page 26: ...data sheets These will influence the actual values 1 9 6 5 USB Port Front side The frontal USB port located to the right of the rotary knobs is intended for the connection of standard USB flash drives flash drive This can be used for Loading or saving sequences for the arbitrary and loading tables for the UI IU function generator Updating HMI firmware new languages functions USB flash drives must ...

Page 27: ...following options are available Article number Name Description 35400100 IF AB CANO CANopen 1x Sub D 9pole male 35400101 IF AB RS232 RS 232 1x Sub D 9pole male null modem 35400103 IF AB PBUS Profibus DP V1 Slave 1x Sub D 9pole female 35400104 IF AB ETH1P Ethernet 1x RJ45 35400105 IF AB PNET1P ProfiNET IO 1x RJ45 35400106 IF AB DNET Devicenet 1x Wago plug 5pole 35400107 IF AB MBUS1P ModBus TCP 1x R...

Page 28: ... DC cables to the load the Sense input can be connected to the load The maximum possible compensation is given in the technical specifications 1 9 12 Master Slave bus Afurther port is provided on the back side of the device comprising two RJ45 sockets which enables multiple identical devices to be connected via a digital bus RS485 to create a master slave system Connection is made using standard C...

Page 29: ...should be disposed of in an environmentally friendly way 2 1 3 Storage In case of long term storage of the equipment it is recommended to use the original packaging or similar Storage must be in dry rooms if possible in sealed packaging to avoid corrosion especially internal through humidity 2 2 Unpacking and visual check After every transport with or without packaging or before commissioning the ...

Page 30: ...ich must be removed as well as voltage loss which depends on cable length and heating To compensate for these the cable cross section should be increased and the cable length reduced 2 3 3 Installing the device Select the location for the device so that the connection to the load is as short as possible Leave sufficient space behind the equipment minimum 30cm for ventilation A device in a 19 housi...

Page 31: ...g phases Nominal power Phases Supply type 3 3 kW 5 kW L2 L3 PE Three phase 6 6 kW 10 kW L1 L2 L3 PE Three phase 15 kW L1 L2 L3 PE Three phase 15 kW L1 L2 L3 PE Three phase For the sizing of wiring cross section the power of the device and the cable length are decisive The table below gives the maximum input current for each phase as well the recommended cross section for cable lengths up to 5m Bse...

Page 32: ... to 210 A 95 mm up to 340 A 2x70 mm up to 510 A 2x120 mm per connection pole multi conductor insulated openly suspended Single cables of for example 70 mm may be replaced by e g 2x35 mm etc If the cables are long then the cross section must be increased to avoid voltage loss and overheating 2 3 5 1 DC terminal types The table below shows an overview of the various DC terminals It is recommended th...

Page 33: ...y when using the integrated function generator of the master unit Alternatively it can be connected to a compatible electronic load like from series ELR 9000 in order to run a two quadrants operation For further information about this mode of operation can be found in section 3 10 3 Two quadrants operation 2QO For the connection of the share bus the following must be paid attention to Connection i...

Page 34: ...nded that the slot cover is mounted in order to avoid internal dirtying of the device and changes in the air flow Installation steps 1 2 3 Remove the slot cover If needed use a screw driver Check that the fixing screws of an already installed module are fully retracted If not unscrew them Torx 8 and re move module Insert the interface module into the slot The shape ensures correct alignment When i...

Page 35: ...dware Select Update driver 1 Windows will ask if the driver should be automatically searched or whether it should be located and installed manually Select the latter second choice in the dialogue window 2 In the next dialogue window the driver source path will be determined Click on Search and enter the folder of the USB driver from the Drivers Tools CD or the path to the downloaded and unpacked d...

Page 36: ...d constant on the adjusted value unless the output current or the output power according to P UOUT IOUT reaches the adjusted current or power limit In both cases the device will automatically change to constant current or constant power operation whatever occurs first Then the output voltage can t be held constant anymore and will sink to a value resulting from Ohm s law While the DC output is swi...

Page 37: ...on the graphic display by the abbrevia tion CP as well stored as status which can also be read as a status message via digital interface 3 2 4 Internal resistance regulation Internal resistance control abbr CR of power supplies is the simulation of a virtual internal resistor which is in series to the voltage source and thus also in series to the load According to Ohm s law this causes a voltage d...

Page 38: ... if an excess temperature inside the device and causes it to stop supplying power temporarily After cooling down the device will automatically continue to supply power while the condition of the DC output remains and the alarm doesn t require to be acknowledged An OT alarm has a lower priority than an OV alarm overvoltage If an OV alarm occurs during an OT alarm then the message OT will be overwri...

Page 39: ...st condition of the DC output will be restored either on or off All set values are always saved and restored 3 4 2 Switching off the device On switch off the last output condition and the most recent set values are saved Furthermore a PF alarm power failure will be reported but can be ignored The DC output is immediately switched off and after a short while fans will shut down and after another fe...

Page 40: ...0V Unom Aktion NO SIGNAL WARNING ALARM OVD 0V Unom Aktion NO SIGNAL WARNING ALARM UCD 0A Inom Aktion NO SIGNAL WARNING ALARM OCD 0A Inom Aktion NO SIGNAL WARNING ALARM OPD 0W Pnom Aktion NO SIGNAL WARNING ALARM Default Profile User Profile 1 User Profile 2 User Profile 3 User Profile 4 User Profile 5 Device address 1 15 Page 4 DC output after PF alarm OFF Auto ON Restart device Restart Analog Rem ...

Page 41: ...s 1ms MENU Function Generator Ustart 0V Umax Uend 0V Umax Seq time 0 1ms 36000s DIN Sequence 1 DIN Sequence 2 DIN Sequence 3 DIN Sequence 4 DIN Sequence 5 DIN Repetition Seq cycles 0 999 Time t1 0 1ms 36000s Us AC 0V Umax Ue AC 0V Umax fs 1 T 0Hz 1000Hz fe 1 T 0Hz 1000Hz Angle 0 359 Us DC 0V Umax Ue DC 0V Umax Seq time 1ms 36000s Settings 1 Settings 2 01 100 Ustart 0V Umax Uend 0V Umax t1 0 1ms 36...

Page 42: ...w eps germany de info eps germany de MENU Communication name Configure English Backlight Setup Deutsch Language Always on Off after 60 sec Brightness 1 10 HMI Lock Lock all ON OFF possible Key Sound Sound on Sound off Alarm Sound Sound on Sound off HMI Update HMI Setup Other lang Com Timeout Com Protocols Timeout ms 5 65535 SCPI ModBus ...

Page 43: ...east from a different control location Output after power ON 3 Determines the condition of the DC output after power up OFF DC output is always off after switching on the device Restore DC output condition will be restored to the condition prior to switch off DC output after PF alarm 4 Determines how the DC output shall react after a power fail PF alarm has occurred OFF DC output will be switched ...

Page 44: ...nse and getting a ModBus response instead For all Ethernet interfaces with two ports P1 is related to port 1 and P2 to port 2 like printed on the module face Two port interfaces will use one IP only IF Level 1 Level 2 Level 3 Description Ethernet ModBus TCP 1 2 Port IP Settings DHCP The IF allows a DHCP server to allocate an IP address a subnet mask and a gateway If no DHCP server is in the networ...

Page 45: ...an be defined if the default subnet mask is not suitable DNS 1 Here the addresses of the first and second Domain Name Servers DNS can be defined if needed A DNS is only necessary if the device has Internet access and should call Internet URLs e g an internal eMail system in order to send an eMail DNS 2 Port Range 0 65535 Default ports 5025 Modbus RTU for Modbus SCPI Host name Free choice of host n...

Page 46: ...ctive after submitting the change with ENTER button Only one of both can be disabled 3 4 3 8 Menu HMI settings These settings refer exclusively to the control panel HMI Element Description Language Selection of the display language Currently date 12 16 2014 available are German English Additional languages up to three can be integrated can be implemented on demand and installed into the HMI via up...

Page 47: ... 6 00 kW while the currently adjusted power set value is 8 00 kW then the set value first would have to be reduced to 6 00 kW or less in order to set P max down to 6 00 kW 3 4 5 Changing the operating mode In general the manual operation of a PSI 9000 3U distinguishes between two resp three operating modes U I and U P and U R which are tied to set value input using the rotary knobs or ten key pad ...

Page 48: ...for 1 5 seconds next to the adjusted value How to adjust set values U I P or R with the rotary knobs 1 First check whether the value to be changed is assigned to one of the rotary knobs The main screen displays the assignment as depicted in the figure to the right 2 If as shown in the example the assignment is voltage U left and power P right and it is required to set the power then the assignment...

Page 49: ... manually switch the DC output on or off 1 As long as the control panel is not fully locked press the button ON OFF Otherwise you are asked to dis able the HMI lock first 2 This button toggles between on and off so long as a change is not restricted by an alarm or the device is locked in remote The current condition is displayed as Output ON or Output OFF How to remotely switch the DC output on or...

Page 50: ...Local will be displayed top right Activating the inhibit can be useful if the device is remotely controlled by software or some electronic device but it is required to make adjustments at the device or deal with emergency which would not be possible remotely Activating condition Local causes the following If remote control via the digital interface is active Remote then remote control is immediate...

Page 51: ...vice versa The OVP set value and other supervision events and alarm thresholds cannot be set via the AI and therefore must be adapted to the given situation before the AI is put in operation Analog set values can be fed in by an ex ternal voltage or generated by the reference voltage on pin 3 As soon as remote control via the analog interface is activated the values displayed will be those provide...

Page 52: ...4 DGND POT Ground for all digital signals For control and status signals 5 REMOTE DI Switching internal remote control Remote LOW ULow 1 V Internal HIGH UHigh 4 V Internal Open Voltage range 0 30 V IMax 1 mA bei 5 V ULOW to HIGH typ 3 V Rec d sender Open collector against DGND 6 OT DO Overheating or power fail alarm Alarm OT HIGH UHigh 4 V No Alarm OT LOW ULow 1 V Quasi open collector with pull up...

Page 53: ...ce on and off From KE firmware version 2 07 this is also available without remote control being active It is recommended that a low resistance contact such as a switch relay or transistor is used to switch the pin to ground DGND Following situations can occur Remote control has been activated During remote control via analog interface only pin REM SB determines the states of the DC output accordin...

Page 54: ...current and power Requires remote control to be activated Pin Remote LOW The set values PSEL and CSEL are generated from for example the reference voltage VREF using potentiometers for each Hence the power supply can selectively work in current limiting or power limit ing mode According to the specification of max 5 mA for the VREF output potentiometers of at least 10 kΩ must be used The voltage s...

Page 55: ...itch off the appearance of a pop up in the middle of the display and if activated an acoustic signal to make the user aware An alarm must always be acknowledged How to acknowledge an alarm in the display during manual control 1 If the alarm is indicated as a pop up tap OK 2 If the alarm has already been acknowledged but is still displayed in the status area then first tap the status area to displa...

Page 56: ... Triggers an event if the output voltage reaches the de fined threshold 0 V UNom UCD UnderCurrent Detection Triggers an event if the output current falls below the defined threshold 0 A INom OCD OverCurrent Detection Triggers an event if the output current reaches the de fined threshold 0 A INom OPD OverPower Detection Triggers an event if the output power reaches the de fined threshold 0 W PNom T...

Page 57: ...disappear and the HMI remains locked 3 8 Loading and saving a user profile The menu Profiles serves to select between a default profile and up to 5 user profiles A profile is a collection of all settings and set values Upon delivery or after a reset all 6 profiles have the same settings and all set values are 0 If the user changes settings or sets target values then these create a working profile ...

Page 58: ... to the function generator is not available 3 9 2 General 3 9 2 1 Limitations The function generator is not accessible neither for manual acces nor for remote control if master slave mode has been activated and the device was configured as slave resistance modes R I adjustment mode also called UIR mode is active 3 9 2 2 Resolution of X time and Y amplitude The device can set 4096 steps between 0 1...

Page 59: ...imits of voltage current and power which you can access with touch area When entering function generator mode those limits are reset to safe values which can prevent the function from working at all For example if you apply the selected function to the output current then the overall current limit should not interfere and should at least be as high as offset amplitude Setting the various functions...

Page 60: ... Range Description I A U A 0 Nominal value Off of U I A Amplitude of the signal to be generated I Off U Off A Nominal value A of U I Off Offset based on the zero point of the mathematic sine curve may not be smaller than the amplitude f 1 t 1 1000 Hz Static frequency of the signal to be generated Schematic diagram Application and result Offset Amplitude t A f Amplitude A normal sine wave signal is...

Page 61: ... a rectangular wave function Value Range Description I A U A 0 Nominal value Off of U I A Amplitude of the signal to be generated I Off U Off 0 Nominal value A of U I Off Offset based on the foot of the rectangular wave t1 0 1 ms 36000 s Time pulse width of the upper level amplitude t2 0 1 ms 36000 s Time pause width of the lower level offset Schematic diagram Application and result Offset t A Amp...

Page 62: ... 40839 function This function is based on the curve defined in DIN 40839 EN ISO 7637 test impulse 4 and is only applicable to voltage It shall replicate the progress of automobile battery voltage during engine starting The curve is divided into 5 sequences see diagram below which each have the same parameters The standard values from the DIN are set already as default values for the five sequences...

Page 63: ...gle 0 359 1 100 Start angle of the sine wave part of the curve AC Is DC Is AC Nominal value Is AC of I 1 100 Start value of the DC part of the curve Ie DC Ie AC Nominal value Ie AC of I 1 100 End value of the DC part of the curve Seq time 0 1 ms 36000 s 1 100 Time for the selected sequence The sequence time seq time and the start and end frequency are related The minimum value for Δf s is 9 3 Thus...

Page 64: ...s from start to end DC and the amplitude also with each new half sine wave Additionally the first sine wave starts with a negative half wave be cause the angle is set at 180 The start angle can be shifted at will in 1 steps between 0 and 359 Start DC t A S t a r t A C f start f end Seq time End DC Example 4 Focussing 1 cycle of 1 sequence from 100 Similar to example 1 but with another end frequenc...

Page 65: ... in example 3 is run As the settings demand that the end offset DC is higher than the start the second sequence run will revert to the same start level as the first regardless of the values achieved at the end of the first run This can produce a discontinuity in the total progression marked in red which may only be compensated with careful choice of settings t A Sequence 1 Sequence 2 Example 8 Foc...

Page 66: ... headers like in Excel Column Parameter Range A AC Start 0 50 U or I B AC End 0 50 U or I C Frequency Start 0 1000 Hz D Frequency End 0 1000 Hz E Start angle AC 0 359 F DC Start 0 Nominal value of U or I AC Start G DC End 0 Nominal value of U or I AC End H Time in μs 100 36 000 000 000 36 billion μs For details about the parameter and the arbitrary function refer to 3 9 10 Arbitrary function Examp...

Page 67: ...tant to consider are the static values of U and I which define the start levels at the beginning of the ramp It is recommended that these values are set equal to those in A start unless the load at the DC output should not be provided with voltage before the start of the ramp In that case the static values should be set to zero 10h after reaching the ramp end the function will stop automatically i...

Page 68: ...tive depending on which of the two function you load the table for The file must be a text file of type Excel CSV semicolon as separator and must only contain one column with exactly 4096 values without gaps Values with decimal places must use the commas as decimal separator No value may exceed the nominal value of the device For example if you have an 80 V model and you are going to load a table ...

Page 69: ...he solar inverter and probably contact the manufacturer for an evaluation In case option HS is installed in the device see 1 9 5 Options the result of operating critical inverters can be optimised 3 9 13 3 Usage In the PV table function which is based upon the XY generator with IU characteristics the MPP is defined by the two adjustable parameters Umpp and Impp also see diagram below These paramet...

Page 70: ... In order to do so follow the on screen instructions The table can be used to analyse the values or to visualise it in Excel or similar tools How to work with the PV table function 1 With an appropriate load connected for example a solar inverter start the function as described in 3 9 4 1 2 Adjust value Irradiance with any rotary knob between 100 default and 0 in order to reproduce different light...

Page 71: ...depending on the values adjusted for P2 and P3 and can be freely modified as long as P3 s voltage is lower than the one of P2 and P3 s current is higher than the one of P2 How to configure the FC table 1 In the function generator menu tap on then and then 2 Adjust the parameters of the four supporting points as required for the simulation 3 Do not forget to adjust the global limits for current and...

Page 72: ...and control of the functions with individual commands is different from manual operation The external documentation Programming Guide ModBus SCPI explains the approach In general the following apply The function generator is not controllable via the analog interface The function generator is unavailable if R mode resistance is activated Some functions are based on the arbitrary generator some on t...

Page 73: ...C outputs The DC output of every unit in the parallel operation is connected with correct polarity to the next unit using cables with cross section according to the maximum current and with short as possible length 3 10 1 2 Wiring the Share bus The Share bus is wired from unit to unit with an ideally twisted pair of cables with non critical cross section We recommend to use 0 5 mm to 1 0 mm The Sh...

Page 74: ...ary knob Ensure that no address is allocated twice 4 Accept the settings with the touch area and return to the main page The slave is then configured for master slave Repeat the procedure for all other slave units Step 2 Configuring the master unit 1 Enter then GENERAL SETTINGS and press until reaching PAGE 8 2 Specify the unit as master with tough area A warning requester will appear which has to...

Page 75: ...e the alarm has been acknowledged Loss of connection to any slave will result in shutdown of all DC outputs as a safety measure and the master will report this situation in the display with a pop up Master slave safety mode Then the MS system has to be re initialised either with or without re establishing connection to the disconnected unit s before All units even the slaves can be externally shut...

Page 76: ...ction in Master Slave mode is not supported It means all units have to controlled separately regard ing set values and DC output status whether it is manual control or remote control digital or analog Due to the max allowed potential shift on the DC output certain models are not allowed for series connection at all like the 1000 V model because the DC plus there is only isolated up to 1000 V On th...

Page 77: ... be done via the interface The electronic load should preferably be in operating mode CV The load will then using the Share Bus control the output voltage of the power supply Typical applications Fuel cells Capacitor tests Motor driven applications Electronic tests where a high dynamic discharge is required 3 10 3 2 Connecting devices to a 2QO There are a number of possibilities to connect source ...

Page 78: ... ISet max discharging current of the battery eg 100 A PSet 3500 W USet 24 V and UVD 20 V or any other minimum value to which the battery shall be discharged to Assumption battery has a voltage of 26 V at test start DC input s and DC output s of all units switched off In this combination of devices it is recommended to always switch on the DC output of the source first and then the DC input of the ...

Page 79: ...such as an AnyBus interface module is included if this is in any way connected to the problem a fault description in as much detail as possible is attached if shipping destination is abroad the necessary customs papers are attached 4 2 1 Replacing a defect mains fuse The device is protected by up to six 6 3x32 mm fuses T16 A 500 V ceramic inside the device TTo replace these the device must first b...

Page 80: ...should only be installed when they can eliminate existing bugs in the firmware in the device or contain new features The firmware of the device if necessary is updated via the rear side USB port For this a software a so called update tool is needed which is available from EPS Stromversorgung as download from the website or upon request together with the firmware update The update tool guides the u...

Page 81: ...oltage with a max error of half the PSI s voltage error That measure ment device can also be used to measure the shunt voltage when readjusting the current If the current is also going to be calibrated a suitable DC current shunt ideally specified for at least 1 25 times the max output current of the PSI and with a max error that is half or less than the max current error of the PSI device to cali...

Page 82: ...nt Measured data measured with your shunt Enter it using the keypad and assure yourself the value is correct and submit with ENTER 5 Repeat step 4 for the next three steps total of four steps In case you are generally using the remote sensing feature it is recommended to also calibrate this feature for best results The procedure is identical to the calibration of voltage except for it requires to ...

Page 83: ... by the manufacturer For this the device must generally be returned to the manufacturer No RMA number is needed It is sufficient to package the equipment adequately and send it together with a detailed description of the fault and if still under guarantee a copy of the invoice to the following address 6 2 Contact options Questions or problems with operation of the device use of optional components...

Page 84: ......

Page 85: ......

Page 86: ......