Chapter 5 Service and Maintenance
5.1 Routine Inspection and Maintenance
Affected by ambient temperature, humidity, dust, vibration and aging internal device,
the controller may have some potential problems during operation. To make sure the
controller can run steadily for longer time, keeping at least a yearly inspection is
necessary.
Requirement of Inspection and Maintenance
1. The inspection must be performed by professional technician, and the power
supply of the controller should be cut off when necessary.
2. Avoid leaving any extra metal parts in the controller, or else it can cause damage to
the equipment.
3. Electrical insulation test has been performed on the controller before factory
delivery, so user does not have to carry on a withstand-voltage test.
4. If it is necessary to conduct insulation test on the controller, all the input and
output terminals must have reliably short circuits. It is forbidden to conduct
insulation test on a single terminal. Please use the 500V megohm meter to conduct
the test.
5. It is forbidden to use the megohm meter to test the control circuit.
6. When conducting insulation test on motor, you have to dismantle the connections
between motor and controller.
Main Points for Inspection and Maintenance
Please use the controller in recommended environment of the manual. Inspection and
maintenance shall be proceeded as the following table.
Inspect Frequency
Inspection Item
Inspection
Content
Judgment Standard
Routine Regular