Specifications

20
Note：If no charging LED indication when the connection is normal
Measure the PV input voltage at the PV terminals, input voltage must be greater
than battery voltage before charging begins.
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 Digital Display indication 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.
Warning：Risk of electric shock! ! !
Make sure all the power is turned off before above operations, and then follow
the corresponding inspections and operations.