HGM9560 BUS TIE MAINS PARALLEL UNIT
HGM9560 Bus Tie Mains Parallel Unit ISSUE 2013-12-30 Version 1.0 Page 51 of 51
16 FAULT FINDING
Symptoms
Possible Solutions
Controller no response with
power.
Check starting batteries;
Check controller connection wirings;
Check DC fuse.
Shutdown Alarm in running
Check related switch and its connections according to the
information on LCD;
Check programmable inputs.
Genset running while ATS not
transfer
Check ATS;
Check the connections between ATS and controllers.
RS485
communication
is
abnormal
Check connections;
Check setting of COM port is correct or not;
Check RS485’s connections of A and B is reverse connect or
not;
Check RS485 transfer module whether damage or not;
Check communication port of PC whether damage.
