HPM6 Power Management Controller User Manual
Page 146 of
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15.
FAULT FINDING
Table 49 – Fault Finding
Symptoms
Possible Solutions
Controller no response with
power
Check power supply;
Check controller connection wirings;
Check DC fuse.
Controller GOV/AVR relay no
response
Check whether GOV, AVR output is selected as internal relay output.
Controller GOV, AVR output
error
Check setting of central point SW1 and range SW2;
Check whether GOV, AVR output is selected as internal analog output.
Impact current too large in
sync closing
Detect controller voltage sampling line or adjust synchronization
parameters;
Debug every unit based on the commissioning process.
Grid connected load of more
than two units
Adjust load control parameters;
Debug every unit based on the commissioning process.
Paralleling
units
cannot
raise/drop power, or just can
little raise/drop power
When the internal relay speed control, check whether the
potentiometer is stuck or in limit, whether the speed control pulse
width is too small at rated speed;
When the internal analog speed control, SW1, SW2 set error, or adjust
the speed control unit, EMC parameters.
Trip in running
Check related switch and its connections according to the information
on LCD.
Genset is running while
switch is not operating
Check if the output signal of the controller is matched with switch
signal;
Check the connections between switch and controllers.
MSC modules too few
Check whether MSC module number is correct;
Detect if the MSC LINK communication is normal.
RS485 comm. abnormal
Check connections;
Check setting of COM port is correct or not;
Check RS485’s connections of A and B is reverse connected or not;
Check whether communication port of PC is normal.
Network monitoring comm.
Check connections;
Check whether network IP, MAC address is correct.
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