Chapter 6 Trouble Shooting - opti-solar SC-50 Installation And Operation Manual

Chapter 6 Trouble Shooting

Proceed as follows for a quick detection of common faults.
Consult your dealer if the fault cannot be resolved.
Problem or Error message
ERROR!!!
High Input Voltage
ERROR!!!
Over-Temp.
ERROR!!!
Battery Over-Temp.
ERROR!!!
Parallel COM Failed
Cause
When the PV array voltage is
higher than 140VDC for SC-80
MPPT or higher than 240VDC
for SC-160 MPPT, the battery
charging stops.
The ambient temperature is too
high and it causes the over
temperature of heatsink.
The battery temperature is
detected too high by the Battery
Temperature Sensor (BTS-3).
The communication failure
between Master and Slave units
or between Slave and Slave units
has occurred.
6-1
Solution
Make sure the PV array
voltage is within the
rated voltage range.
Place the OPTI-Solar SC
MPPT Series unit in a
cool and well-ventilated
room.
Check the battery
condition and place the
battery bank in an
well-ventilated room.
Check the connecting
cables between Master
and Slave units or the
cables among Slaves.