Borri E2001 COMPACT - Page 53

Front panel AC-UPS GD 128x64
OMX76014 Rev. A 35
Alarm
A38
ICB OPEN
Description
The input switch of the inverter ICB is open.
Possible
causes
 Inverter input switch ICB open.
 Switch auxiliary contact faulty.
Solutions
1. Check the switch auxiliary contact is working.
2. If the alarm persists, contact our technical support service.
Alarm
A39
OCB OPEN
Description
The OCB output switch is open.
Possible
causes
 OCB output switch open.
 Switch auxiliary contact faulty.
Solutions
1. Check the switch auxiliary contact is working.
2. If the alarm persists, contact our technical support service.
Alarm
A40
EXTERNAL OCB OPEN
Description
The external output switch is open.
Possible
causes
 External output switch open.
 Switch auxiliary contact faulty.
Solutions
1. Check the switch auxiliary contact is working.
2. If the alarm persists, contact our technical support service.
Alarm
A41
MBCB CLOSED
Description
The MBCB bypass switch is closed.
Possible
causes
 Manual bypass switch MBCB closed
 Switch auxiliary contact fault.
Solutions
1. Check the switch auxiliary contact is working
2. If the alarm persists, contact our technical support service.
Alarm
A42
INVERTER OUT OF TOLERANCE
Description
Out of tolerance inverter output voltage
Possible
causes
 Inverter bridge switched off or faulty
 Control logic malfunction
Solutions
1. If the inverter is off, switch it on
2. If the alarm persists, contact our technical support service.