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UPS user manual
OMH44150 REV. B
71
Alarm
A38
INVERTER
LOAD
Description
The load is fed by the inverter. This alarm is active for UPS systems in
ECO / VHE / UHE mode, where the preferential supply is from the
bypass line.
Possible
causes
Temporary changeover due to bypass line failure.
Solutions
1. Verify the status of the bypass line and check whether other
alarms are present.
2. If the alarm persists, contact our Technical Support Service.
Alarm
A39
INVERTER ERROR LOOP
Description
The control is not able to regulate the inverter voltage precisely.
Possible
causes
Regulation system failure.
Solutions
1. Reset the system.
2. If the alarm persists, contact our Technical Support Service.
Alarm
A40
SSI FAULT
Description
The system has detected a failure in the inverter static switch.
Possible
causes
Possible problems on the loads.
Static switch fault.
Solutions
1. Check the absorption of the loads and the presence of DC
components, if any, on AC current.
2. If the alarm persists, contact our Technical Support Service.
Alarm
A41
RECTIFIER VOLTAGE ERROR LOOP
Description
The control is not able to regulate the rectifier output voltage precisely.
Possible
causes
Regulation system failure.
Solutions
1. Reset the system.
2. If the alarm persists, contact our Technical Support Service.
Summary of Contents for UPSaver 1000 kVa
Page 2: ...UPS OPERATING MANUAL UPSaver 400 1600 kVA ...
Page 5: ......
Page 7: ...Warnings and general information 2 OMH44148 REV A ...
Page 13: ......
Page 20: ...UPSaver installation and start up OMH44149 REV C 7 ...
Page 33: ...UPSaver installation and start up 20 OMH44149 REV C Picture 6 Handling of the power module ...
Page 57: ...UPSaver installation and start up 44 OMH44149 REV C Picture 46 UPS cabinets upper fixing ...
Page 59: ...UPSaver installation and start up 46 OMH44149 REV C Picture 49 Power module cables terminals ...
Page 115: ...UPS user manual 6 OMH44150 REV B ...