UPS user manual
Utilizzo dell’UPS
OMD91052 REV. C
49
Alarm
A35
DIESEL MODE
Description
The UPS is supplied by the diesel generator.
Possible
causes
The auxiliary contact which activates the diesel generator
connected to the UPS is closed, and imposes this operating
mode.
Solutions
1. Wait for the diesel generator to stop as soon as the mains voltage
is restored.
2. Check the connection of the auxiliary contact which signals the
diesel generator start, to terminals XD1/XD2.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A36
DC FASTSHUTDOWN
Description
Inverter shutdown due to the operation of the protection sensor as a
result of sudden DC voltage variations.
Possible
causes
Battery fault.
Solutions
1. Check the battery.
2. Reset the system.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A38
INV --> LOAD
Description
The load is fed by the inverter. This alarm is active for UPS systems in
“ECO” 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
INV 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.
Summary of Contents for ASD91
Page 1: ...OPERATING MANUAL UPS MANUALE OPERATIVO UPS B8000FXS 10 15 20 30 40 50 60kVA ...
Page 2: ......
Page 4: ......
Page 6: ...Warnings and general information Avvertenze e informazioni generali 2 OMD91048 REV B ...
Page 134: ...UPS user manual Utilizzo dell UPS 6 OMD91052 REV C ...
Page 135: ...UPS user manual Utilizzo dell UPS OMD91052 REV C 7 ENGLISH LANGUAGE ...
Page 181: ...UPS user manual Utilizzo dell UPS OMD91052 REV C 53 LINGUA ITALIANA ...