CARLO GAVAZZI RSBT Serie Manual De Instrucciones página 3

Troubleshooting
Number of flashes
Alarm
Alarm description
Alarm recovery period
Consecutive alarms for hard reset
Action to recover alarm
Troubleshooting
Number of flashes
Alarm
Alarm description
Alarm recovery period
Consecutive alarms for hard reset
Action to recover alarm
Troubleshooting
Carlo Gavazzi
2
Wrong phase sequence
If the connection to the soft starter is not done in the correct
sequence (L1, L2, L3), the RSBT will trigger the wrong phase
sequence alarm and the motor will not be started.
N/A
1
User intervention is required to change the wiring sequence to
recover alarm.
•
Check that wiring on L1, L2, L3 is in the correct
sequence
3
Line voltage out of range
RSBT 48 models have fixed over-voltage and under voltage alarm
limits. When the mains voltage is out of these limits for more than
5 seconds the line voltage out of range alarm will be triggered.
RSBT40 models have auto-adjustable over-voltage and under-
voltage alarm limits, that can be modified by user as well. Unless
they are modified, they will automatically adjust according to the
supply voltage. Once any or both are modified, the change/s will
be retained until the user changes again any or both limits. When
the mains voltage is out of these limits for more than 5 seconds
the line voltage out of range alarm will be triggered.
Model
RSBT40
RSBT48
5 minutes
N/A
The alarm will self-recover after 5 minutes from when the supply
voltage is within limits.
•
Check supply voltage level across L1, L2, L3 terminals
RSBT Troubleshooting Guide – Rev 1.0
Under-voltage limit
187/330 VAC
175 VAC
EN
Over-voltage limit
250/470 VAC
560 VAC
3