ABB PSTX Series, Руководство по установке и пусконаладке, Страница: 120 / 188

120 Functions | Installation and commissioning manual | 1SFC132081M0201
7.19.1.3
Open circuit thyristor fault
The Softstarter cannot close 1 or more thyristors.
INFORMATION
If Automatic restart is set to on, an open circuit
thyristor fault will automatically start the motor
again.
For more information about Automatic restart see chapter
7.13 Automatic restart.
Open circuit thyristor fault has these parameters:
Parameter Description Setting range Default value
25.05 Open circuit thyr out Identifies the Event groups this
fault is part of.
Eventgroup 0 ... 6 0000001
25.06 Open circuit thyr op Sets the operation of this fault.
Stop manual, Stop
auto Stop manual
7.19.1.4
Thyristor overload fault
The thyristors in the Softstarter are overloaded.
If the estimated thyristor junction temperature is higher
than the maximum permitted value, this fault is signaled,
to protect thyristors from overheating.
INFORMATION
If Automatic restart is set to on, a thyristor
overload fault will automatically start the motor
again.
For more information about Automatic restart see
chapter 7.13 Automatic restart .
Thyristor overload fault has these parameters:
Parameter Description Setting range Default value
25.07 Thyristor OL out Identifies the Event groups this
fault is part of. Eventgroup 0 ... 6 0000001
25.08 Thyristor OL op Sets the operation of this fault. Stop manual, Stop
auto Stop manual
7.19.1.5
Heatsink overtemperature fault
The Softstarter measures the heatsink temperature. If
the temperature gets to high this fault is signaled. The
purpose of the heatsink is to keep the thyristors cool.
Heatsink overtemperature fault has these
parameters:
Parameter Description Setting range Default value
25.09 Heatsink overtemp out Identifies the Event groups this
fault is part of. Eventgroup 0 ... 6 0000001
25.10 Heatsink overtemp op Sets the operation of this fault. Stop manual, Stop
auto Stop manual
7