38
Charging and discharging
circuit is off and the
LOAD
of
monitoring
interface shows OverTemp.
Cooling fins
of controller
over
temperature
When the temperature of cooling fins of
controller reach 85
℃, the controller will
cut input and output circuit; when it is
lower than 75
℃,the controller will
automatically recover the connection of
input and output circuit.
5.3 Maintenance
The following inspections and maintenance tasks are recommended at least two times per
year for best controller performance.
Check that the controller is securely mounted in a clean and dry environment.
Check that the air flow and ventilation around the controller is not blocked. Clear all
dirt or fragments on the heat sink.
Check all the naked wires to make sure insulation is not damaged for serious
solarization, frictional wear, dryness, insects or rats etc. Maintain or replace the wires if
necessary.
Tighten all the terminals. Inspect for loose, broken, or burnt wire connections.
Check and confirm that LED or LCD is consistent with required. Pay attention to any
troubleshooting or error indication .Take necessary corrective action.
Confirm that all the system components are ground connected tightly and correctly.
Confirm that all the terminals have no corrosion, insulation damaged, high temperature
or burnt/discolored sign, tighten terminal screws to the suggested torque.
Inspect for dirt, insects and corrosion, and clear up.
Check and confirm that lightning arrester is in good condition. Replace a new one in
time to avoid damaging of the controller and even other equipments.
