SuZhou Eshine Elevator Components Co., Ltd. Chapter 7 Maintenance
YS-K01 Door Controller User Manual ―55―
7.2 Periodical Maintenance
Customer should check controller in short time or every 3 to 6 months according to the actual
environment so as to avoid hidden problems and make sure the controller runs well for a long
time.
General Inspection:
• Check whether the screws of control terminals are loose. If so, tighten them with a screw
driver;
• Check whether the main circuit terminals are properly connected; whether the mains cables
are over heated;
• Check whether the power cables and control cables are damaged, especially check for any
wear on the cable tube;
• Check whether the insulating tapes around the cable lugs are stripped, and for signs of
overheating near terminations;
Note:
1
．
Dielectric strength test of controller has already been conducted in the factory. Do not do
the test again. Otherwise, the controller might be damaged.
2
．
If insulation test to controller is necessary, it must be done to the ground after all
input/output terminals are short-connected by conductors. It is forbidden for each terminal to
ground test. It is recommended to use the 500V megger.
3
．
For controller stored for a long time, must be powered up every 2 years. When supplying
AC power to controller, use a voltage regulator to gradually raise the input voltage to rated
input voltage at least 5 hours.
7.3 Replacing Damaged Parts
The easily damaged component is the electrolytic capacitors of filters.
Generally, the life of electrolytic capacitor is 40,000
－
50,000 hours. Due to high ambient
temperature and large pulse current induced by rapid changing loads, the electrolyte capacitors
are aging.
Criteria:
Check if frequent over current or overvoltage failures occur during controller start-up
with load. Check if there is any leakage of liquids. Check if the safety valve protrudes. Measure
the static capacitance and insulation resistance.
7.4 Unwanted Controller Recycling
When disposing controller, please pay attention to the following factors:
The capacitors may explode if they are burnt.
Poisonous gas may be generated when the plastic parts like front covers are burnt.
Disposing method: Please dispose unwanted controller as industrial waste.
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