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UPS user manual
OMH44150 REV. B
69
Alarm
A30
COMMON ALARM
Description Common
alarm.
Possible
causes
At least one alarm is present.
Solutions
1. Check which alarms are present and carry out the indicated
procedures.
Alarm
A31
MBCB BUS CLOSED
Description
The modules acquire the closing signal from the manual bypass
isolator.
Possible
causes
Manual bypass isolator closed.
Solutions
1. Check the status of the manual bypass isolator.
2. Check the functionality of the auxiliary contact of the isolator.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A32
EPO BUS CLOSED
Description
The system is blocked due to the activation of the emergency power off
button.
Possible
causes
Activation of the (local or remote) emergency power off button.
Solutions
1. Release the emergency power off button and reset the alarm.
2. If the alarm persists, contact our Technical Support Service.
Alarm
A33
ASYMMETRIC LOAD
Description
The positive and negative voltages measured on the DC capacitors
towards the middle point are different.
Possible
causes
Possible failure on the measuring circuit.
Possible fault of DC capacitors.
Output load with DC current component
Solutions
1. Reset the system.
2. Verify the output load.
3. 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 ...