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Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 23/03/2011
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6.7 Routine and periodical examination
Inverter requires routine and periodical examination and maintenance
Carry out the examination only after the “ Power LED ” indicator goes off for at least 5
minutes
Maintenance item
Maintenance
description
Examination
period
Examination
method
Criterion
Countermeasure
Routine 1 Year
Installation site
environment
Reconfirm environment
temperature and
humidity
✟
Refer to installation
instructions and
measure with
thermometer and
hygrometer
Temperature:
-10~40°C
Humidity: under
95% without
condensing
Improve installation
site environment
Check and remove
any flammable
material nearby
✟
Visual inspection
No foreign object
Inverter
Installation and
Grounding
Is there any abnormal
vibration on the
installation site?
✟
Visual and audio
Inspection
No foreign object
Tighten loose screw
Is the grounding
resistance within
acceptable range?
✟
Measure resistance
by multi-meter
200V class under
100
Ω
Improve grounding
Input power source
voltage
Is the voltage of the
primary circuitry
normal?
✟
Measure voltage by
multi-meter
Voltage level
conforming
specification
Improve input
power source
Inverter external
terminal mounting
screw
Is the tighten parts
secured?
✟
Visual inspection.
Use screwdriver to
verify screw
tightness
No abnormality
Tighten loose
screw or return for
repair
Is there any sign of
breakage on the
terminal panel?
✟
Is there any obvious
rusty condition?
✟
Internal wiring of
inverter
Is it deformed or
skewed?
✟
Visual inspection
No abnormality
Replace or return
for repair
Is the insulation of
wire broken?
✟
Heat-sink
Is it accumulating
dust or dirt?
✟
Visual inspection
No abnormality
Clean up dust or
dirt
PCB
Is it accumulating
conductive metal or
oil stain?
✟
Visual inspection
No abnormality
Clean up or
replace PCB
Is there any over-
heated or burnt
component?
✟
Cooling fan
Is there any abnormal
vibration or noise?
✟
Visual inspection
No abnormality
Replace cooling
fan
Is it accumulating
dust or dirt?
✟
Clean up
Power component
Is it accumulating
dust or dirt?
✟
Visual inspection
No abnormality
Clean up
Capacitor
Is there any sign of
strange order or
leakage?
✟
Visual inspection
No abnormality
Replace capacitor
or inverter
Is there any sign of
swelling or bulging?
✟
RVDF Advanced User Manual