ABB PSTX Serie Mode D'emploi page 18

High current
Phase loss
Heat sink overtemperature
Bad network quality
Shunt fault
Low supply voltage
Thyristor overload
Short circuit thyristor
Open circuit thyristor
Unspecified fault
Invalid ID
Faulty connection
Faulty usage
18 Softstarters Type PSTX30...PSTX1250 User Manual short form 1SFC132082M9901
A fault current, higher than 8 times the softstarter ratings, has
occurred. Check the circuits including the motor for any insulation
fault, phase to phase fault, or earth fault.
Voltage to one or more phases missing. Check that the mains are
connected and that no line contactor or breaker is open.
The heat sink temperature is too high. Check the starting conditions
and the fans. Increase current limit if needed. Let the softstarter
cool down before restart.
Excessive disturbances in the operational supplying network. Check
for harmonics or frequency disturbance in the supply network.
The softstarter can not stop the motor due to internal short circuit.
Contact ABB sales office for service.
Too low control supply voltage on terminals 1 and 2. Check for volt-
age dips or interruptions.
The thyristors are overheated. Check the starting conditions and
the fans. Increase current limit if needed. Let the thyristors cool
down before restart.
One or several thyristors are shorted. Contact ABB sales office for
service.
One or several thyristors are not conducting. Contact ABB sales
office for service.
Internal fault in the softstarter. Disconnect and reconnect the supply
voltage. If fault remains, contact ABB sales office for service.
A valid softstarter ID has not been set.
Motor is connected in a faulty way.
It is not allowed to use the functions jog, motor heating and stand
still break when the softstarter is connected inside delta.
Description