ABB PSTX Series Installation And Commissioning Manual page 119

7.19.1 Internal faults
Shunt fault
7.19.1.1
The Softstarter has been shorted and cannot stop the
power to the motor.
If Softstarter is connected in-line, shunt fault is on if 2 or
3 phases are shorted.
If Softstarter is connected inside-delta, shunt fault is on if
1 or more phases are shorted.
If the user puts shunt fault on 1 relay and connect it to a
line contactor or a circuit breaker, the user can break off
the motor.
Speak to ABB sales office for service.
Shunt fault has these parameters:
Parameter
25.01 Shunt fault out
25.02 Shunt fault op
Short circuit fault
7.19.1.2
The Softstarter has a short circuit or bypass. The
Softstarter can run in Limp mode function, even if 1
phase become shorted.
INFORMATION
If Automatic restart is set to on, a short circuit
fault will automatically start the motor again.
For more information about Automatic restart, see
chapter 7.13 Automatic restart.
If 1 or multiple thyristors are shorted, speak to ABB sales
office for service.
Short circuit fault has these parameters:
Parameter
25.03 Short circuit out
25.04 Short circuit fault op
Description
Identifies the Event groups this
fault is part of.
Sets the operation of this fault.
Description
Identifies the Event groups this
fault is part of.
Sets the operation of this fault.
1SFC132081M0201 | Installation and commissioning manual | Functions
Setting range Default value
Eventgroup 0 ... 6 0000001
Stop manual, Stop Stop manual
auto.
Setting range Default value
Eventgroup 0 ... 6 0000001
Stop manual, Stop Stop manual
auto
7
119