Borri E2001 COMPACT - Page 51

Front panel AC-UPS GD 128x64
OMX76014 Rev. A 33
Alarm
A26
RECTIFIER PARALLEL FAULT
Description In parallel configuration of the rectifier, the system cannot manage
to sub-divide the load even if the conditions are present.
Possible
causes
 Current sensor disconnected.
 The parallel switch contacts are interrupted.
Solutions
1. Check the sensors and the auxiliary contact.
2. If the alarm persists, contact our technical support service.
Alarm
A28
SBCB OPEN
Description
The SBCB bypass switch is open.
Possible
causes
 SBCB bypass 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
A29
ELCB OPEN
Description
The ELCB emergency line switch is open.
Possible
causes
 ELCB emergency line 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
A30
RECTIFIER OFF BY USER
Description
Rectifier manually switched off.
Possible
causes
 Rectifier switched off from panel.
 Rectifier switched off from front switch.
 Rectifier switched off from specific digital contact.
Solutions
1. Check the points in the "Possible causes".
2. If the alarm persists, contact our technical support service.
Alarm
A31
RECTIFIER CONTROL ERROR LOOP
Description
Control circuit fault.
Possible
causes
 Circuit fault of control or measurement.
Solutions
1. Check the connections of the measurements and the control
circuit.
2. If the alarm persists, contact our technical support service.