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8 MAINTENANCE
！
WARNING
Maintenance must be performed according to designated maintenance methods.
Maintenance, inspection and replacement of parts must be performed only by authorized
personnel.
After turning off the main circuit power supply, waiting for 10 minutes before
performance maintenance or inspection.
DO NOT directly touch components or devices of PCB board. Otherwise controller can
be damaged by electrostatic.
After maintenance, all screws must be tightened.
8.1 Daily Maintenance
In order to prevent the fault of controller to make it operate smoothly in
high-performance for a long time, user must inspect the controller periodically (within half
yea). The following table indicates the inspection content.
Items to be
checked
Main inspections
Criteria
Inspection content
Frequency
Means/methods
Operation
environment
1. Temperature
2. Humidity
3. Dust
4. Vapor
5. Gases
1. Point thermometer
hygrometer
2. Observation
3. Visual examination
and smelling
1. Ambient temperature shall
be lower than 40
℃
,
otherwise, the rated values
should be decreased.
Humidity shall meet the
Requirement;
2. No dust accumulation, no
traces of water leakage and
no condensate;
3. No abnormal color and
smell.
Controller
1. Vibration
2. Cooling and heating
3. Noise
1. point thermometer
2. Comprehensive
observation
3. Listening
1. Smooth operation
without vibration;
2. Fan is working in good
condition. Speed and air
flow are normal;
3. No abnormal heat;
4. No abnormal noise
Motor
1. Vibration
2. Heat
3. Noise
1. Comprehensive
observation
2. Point thermometer
3. Listening
1. No abnormal vibration and
no abnormal noise;
2. No abnormal heat;
3. No abnormal noise
Operation
status
parameters
1. Power input voltage
2. Controller output
voltage
1. Voltmeter
2. Rectifying
1. Satisfying the specification;
2. Satisfying the specification;
3. Satisfying the specification;
