CARLO GAVAZZI RSGT Guía De Resolución De Problemas página 6

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
Number of flashes
Alarm
Alarm description
Alarm recovery period
Consecutive alarms for hard reset
Action to recover alarm
Troubleshooting
Carlo Gavazzi
9
Supply voltage unbalance
The RSGT measures the voltages on all the three phases and if
there is a difference of more than 20% for ≥ 5sec between any of
the phases, the RSGT will trigger the voltage unbalance alarm.
5 minutes
5
The alarm will recover automatically after 5 minutes. If manual
reset mode is enabled, press Test/Reset button.

Check supply voltage level across L1, L2, L3 terminals.

Check connections on the L1, L2, L3 terminals.
10
Shorted thyristor (SCR)
In case the RSGT detects that there is a damaged (shorted)
thyristor (SCR) on any of the three phases, the soft starter will trip.
-
1
Note: this alarm is not resettable and it is suggested to replace the
unit and contact a Carlo Gavazzi representative should this alarm
occur.

Check resistance across L1-T1, L2-T2 and L3-T3 to
check for any short.

If any of the SCRs is damaged, replace the soft starter.
Fully ON
Internal fault
In case there is an internal fault in the RSGT circuitry, the Red
LED will remain continuously ON.
-
1
Note: this alarm is not resettable and it is suggested to replace the
unit and contact a Carlo Gavazzi representative should this alarm
occur.

Turn ON and OFF the device. If alarm still persists
replace the soft starter.
RSGT Troubleshooting Guide – Rev 1.0
EN
6