Invt CHV190-5R5G-4 [148/242] Periodic maintenance

Invt CHV190-5R5G-4 [148/242] Periodic maintenance
CHV190 series special inverter for crane
- 147 -
Main inspections Criteria Items to be
checked
Inspection content
Frequency Means/Methods
Inverter
(1) Vibration
(2) Cooling and
heating
(3) Noise
(1) Point thermometer
comprehensive
observation
(2) 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
(3) Vibration
(2) Heat
(3) Noise
(1) Comprehensive
observation Listening
(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) Inverter output
voltage
(3) Inverter output
current
(4) Internal
temperature
(1) Voltmeter
(2) Rectifying
voltmeter
(3) Ammeter
(4) Point thermometer
(1) Satisfying the
specification.
(2) Satisfying the
specification.
(3) Satisfying the
specification.
(4) Temperature rise is
lower than 40.
9.2 Periodic Maintenance
Customer should check the drive every 3 months or 6 months according to the actual
environment
1. Check whether the screws of control terminals are loose. If so, tighten them with a
screwdriver;
2. Check whether the main circuit terminals are properly connected; whether the mains
cables are over heated;
3. Check whether the power cables and control cables are damaged, check especially for
any wear on the cable tube;
4. Check whether the insulating tapes around the cable lugs are stripped;
5. Clean the dust on PCBs and air ducts with a vacuum cleaner;
6. For drives that have been stored for a long time, it must be powered on every 2 years.
When supplying AC power to the drive, use a voltage regulator to raise the input voltage to

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