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5 Fault handling
5.1
Fault alarm and solutions
The power controller may encounter the following faults in the use process. Please refer to
the following methods for simple fault analysis:
Fault
description
Fault cause
Solutions
Overheat
The ambient
temperature is too high
Reduce ambient temperature
The fan is damaged
Replace the fan
Overcurrent
Load short circuit or
load power more than 2
times rated load
Check the load for short circuit
Main circuit
fault
The main circuit is not
powered on or the
voltage of the main
circuit is too low
Check whether the main circuit
power supply is powered on with a
multimeter
Thyristor fault
Thyristor damaged
Replace the thyristor
Frequency fault
Power frequency
overrun
Frequency range of power grid:
45
~
65HZ
F
TM 1 TYPE SCR power controller