ABB PSTX30 Installation And Commissioning Manual page 108

Short circuit fault
7.17.1.2
The softstarter has a short circuit or By-pass. The
softstarter can run in Limp mode function, even if one
phase become shorted.
If one or several thyristors are shorted, Contact ABB sales
office for service.
Short circuit fault is configured with the following
parameters:
Parameter
25.03 Short circuit out
25.04 Short circuit fault op
Open circuit thyristor fault
7.17.1.3
The softstarter cannot close one or more thyristors.
Open circuit thyristor fault is configured with the
following parameters:
Parameter
25.05 Open circuit thyr out
7
25.06 Open circuit thyr out
Thyristor overload fault
7.17.1.4
The thyristors in the softstarter are overloaded.
If the estimated thyristor junction temperature exceeds the
maximum allowed value, this fault is signaled, to protect
thyristors from overheating.
Check the starting conditions and the fans.
Increase current limit if needed.
Let the thyristors cool down before restart.
Thyristor overload fault is configured with the
following parameters:
Parameter
25.07 Thyristor OL out
25.08 Thyristor OL op
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Description
Specifies the Event groups this
fault belongs to.
Sets the operation of this fault.
Description
Specifies the Event groups this
fault belongs to.
Sets the operation of this fault.
Description
Specifies the Event groups this
fault belongs to.
Sets the operation of this fault.
Setting range Default value
Eventgroup 0 ... 6 1
Stop manual, Stop Stop manual
auto
Setting range Default value
Eventgroup 0 ... 6 1
Stop manual, Stop Stop manual
auto
Setting range Default value
Eventgroup 0 ... 6 1
Stop manual, Stop Stop manual
auto