21
5.2
Troubleshooting
Faults
Possible reasons
Troubleshooting
Charging LED indicator is off during
daytime and the monitor shows
Disconnect.
PV Array Disconnection
Check that PV and battery wire connections are correct and
tight.
Monitor interface PV shows Measure
Err, MOS-I Short, MOS-C Short, MOS
Break.
Fault indicator flashing
MOS-I Or MOS-C Damage
Please restart controller;
if the fault still exists, switch off controller immediately and
contact the supplier to make maintenance.
Monitor interface BATT shows LVD.
Battery Over Discharged
The controller cut off the output automatically and recover when
fully charged.
Charging and discharging circuit is off
and monitor interface BATT shows OVD.
Fault indicator flashing
Battery Over Voltage
switch off the wiring of solar array and measure the voltage of
battery whether is too high.
Charging and discharging circuit is off
and the BATT of monitoring interface
shows Over Temp.
Fault indicator flashing
Operating Ambient
Temperature
(local temperature sensor) Or
Battery Temperature
(remote temperature sensor)
Over Temperature
When operating ambient temperature or battery temperature
reaches exceeds 65ºC controller will cut off input and output
circuit automatically.
When the temperature is below 55
℃
, controller will
automatically reconnect input and output circuit.
Monitor interface BATT shows Rated V
Err.
Charging indicator and Fault indicator
flashing
System Voltage Error
Check whether the battery voltage is consistent with the system
voltage set by the controller.
Discharging circuit is off and monitor
shows Over Load.
Fault indicator flashing
Load Overload
▽
①
Please reduce the number of electric equipments.
②
Restart the controller.
Discharging circuit is off and the LOAD
monitor shows Short.
Fault indicator flashing
Load circuit is short
①
Check
carefully
loads
connection,
clear
the
fault.
②
Restart the controller.
Charging and discharging circuit is off
Electronical Component
Please restart controller, if the fault still exists, cut off charging