30
verify that the adapter
software is installed and a
serial COM port has been
mapped
5.3 Maintenance
The following inspections and maintenance tasks are recommended at least
two times per year for best controller performance.
Make sure controller firmly installed in a clean and dry ambient.
Make sure no block on air-flow around the controller. Clear up any dirt and
fragments on radiator.
Check all the naked wires to make sure insulation is not damaged for
serious solarization, frictional wear, dryness, insects or rats etc. Repair or
replace some 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.
Check for dirt, nesting insects and corrosion. If so, clear up in time.
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.
WARNING
：
Risk of electric shock!
Make sure that all the power is turned off before above operations,
and then follow the corresponding inspections and operations.
