AEG 8000012364 BAL Troubleshooting, Output Voltage Deviation, For systems with SBS additionally

Page 30

"UniVert 2" inverter

7 Troubleshooting

Attention! All work on the unit may be carried out by specially trained qualified personnel only. Always observe the safety instructions! (See chapter 1.)

7.1No Output Voltage or Output Current Present (with connected load)

Individual INV operation:

•DC present and correct polarity?

•Are the LCD and the fan working? (Control unit is supplied with power)

•Is the INV switched on?

•Is the miniature circuit-breaker F1 switched on?

•Has a monitoring system responded?

(Switch the INV OFF and back ON)

With INVs in parallel operation: (additionally)

•LCD shows output voltage but no current:

AC fuse faulty? Check output voltage of the unit

INV does not synchronise and does not switch on the output contactor

For systems with SBS: (additionally)

•LCD shows output voltage but no current:

INV does not synchronise and does not switch on the output contactor

Is the SBS blocked?

If all aforementioned points are OK, proceed as follows:

•Disconnect the unit and disassemble it (see chapter 5.4)

•Unscrew the cover

•Observe the safety instructions!

•Check fuse F1 on printed circuit board A3.1 (softstart)

•Check fuse F100 on printed circuit board A17 (INV interface, auxiliary power supply)

•Check fuse F1 on printed circuit board A17 (INV interface, 24 V for fan, relay, INV control)

•Check plug connections for correct position

It the fault cannot be eliminated, return the unit to the works for repair enclosing a fault description.

7.2Output Voltage Deviation

•Did the INV cause the output voltage deviation?

•Is the unit running with current limiting due to overload? Reduce the load!

Page 30 of 42

8000012364 BAL, en

Page 29 Page 31
Image 30
Page 29 Page 31
Contents Operating Instructions UniVert 2 inverter and SBS option Validity WarrantyDuty to Provide Information HandlingAbbreviations HotlineCopyright Table of Contents Maintenance Troubleshooting Technical DataDimensional Drawing Safety Instructions Important Instructions and ExplanationsAccident Prevention Regulations Qualified Personnel Safety Awareness ApplicationLiability DirectivesGeneral Information System DescriptionParallel INV operation Function of the SystemIndividual INV operation Individual or parallel operation with SBSParallel INV operation Block diagram of the inverter Description of the INVPrinciple of Operation of the INV, Electrical Description of the SBS SBSPrinciple of Operation of the SBS, Electrical Function of the Inverter Can Bus Interfaces X6 ON/OFF SwitchDIL Switch S2.1 S2.2 S2.3INVs Settings must be the same on all INVs and the SBS Switches S2.4, S2.5 and S2.6 Own Address INVSwitches S2.7 and S2.8 Number of redundant INVs S2.4 S2.5 S2.6 AddressSignalling, Displays and Remote Signals Display Colour Operating statusSwitchback Attempts Function of the SBS optionalOperating Statuses AC Busbar Reset ButtonAC Mains Input AC Mains Monitoring SystemS3.1 S3.2 S3.3 S3.7 S3.8 INVs Assignment of the signal terminals Switchover without gapOperating modes Switchover with gap Start-Up InstallationConnecting the Loads / DC / Mains ConnectionDisconnection Maintenance Troubleshooting Output Voltage DeviationFor systems with SBS additionally Technical Data General Data INVCollective fault FaultOvertemperature ϑ OperationGeneral Data SBS With safe isolation at UO ≤ 60 V DC UniVert 2 inverter Electrical Data At 24 Type E-number G110 E230/10,9/2rfg-CFp2,5 3000000263 Type E-number E230 E230/115/2-VFp26,5-8 3000000646 Dimensional Drawing Inverter dimensions type 1.5 and 3.3 kVAInverter dimensions type 2.5 kVA SBS dimensions
Top Page Image Contents