Epcom EPIG5K User Manual page 26

BOOST OT Over- temperature in Boost
R MO. OT/ module
Over-temperature in the
inverter module
RPH.OC Over-current in the grid side Check whether AC output power exceeds rated
RPH.OL Overload in the grid side
NO GRID The grid is not normal.
/ISOLATED
MO.FAULT There is a fault in the module
of the inverter.
LEAKAGE C. The leakage current is
abnormal.
PV NO EARTH The insulation between the
PV and the Earth is
abnormal.
RELAY FAULT The state of the relay in the
inverter is abnormal.
1. Check whether the installation place is OK.
2. Check whether AC output power exceeds
rated power too much.
3. Check the state of the fans.
4. Check whether there is some foreign body
blocking the air inlet and outlet. Clean air
grills of air vent.
power too much.
Check whether there is too much load in the
output grid.
1. Check whether AC circuit breaker is off.
2. Check whether AC cables are all firmly
connected.
3. Check whether grid is cut off.
4. If all conditions are OK and this malfunction
still occurs in the LCD screen, please
contact SYSCOM / EPCOM
If this malfunction occurs, the reasons are very
complicated.
1. Disconnect AC circuit breaker.
2. Disconnect DC circuit breaker.
3. Check the temperature of heat sink. If its
temperature exceeds 80 , restart the
inverter until it recovers to environment
temperature.
5. Close DC circuit breaker.
6. Close AC circuit breaker.
7. If this malfunction happens again, please
contact us.
If the LCD shows these faults, there may be
something damaged in the inverter or the solar
modules. Then you'd better not touch any
component of the inverter, shutdown the
circuit-breaker or the disconnector
immediately and then contact us.
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