55
Routine examination 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
Examination
period
Maintenance
item
Maintenance
description
Routine 1 Year
Examination
method
Criterion
Countermeasure
Reconfirm environment
temperature and humidity
○
Refer to installation
instructions and measure
with thermometer and
hygrometer
Temperature: -10~40
OC Humidity: under 95%
without condensing
Installation site
environment
Check and remove any
flammable material nearby
○
Visual inspection No foreign object
Improve installation
site environment
Is there any abnormal
vibration on the installation
site?
○
Visual and audio
Inspection
No foreign object Tighten loose
screw
Inverter
Installation and
Grounding
Is the grounding resistance
within acceptable range?
○
Measure resistance by
multi-meter
200V class under 100
ohm
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
Is the tighten parts secured?
○
Is there any sign of breakage
on the terminal panel?
○
Inverter
external
terminal
mounting
screw
Is there any obvious rusty
condition?
○
Visual inspection. Use
screwdriver to verify
screw tightness
No abnormality
Tighten loose screw
or return for repair
Is it deformed or skewed?
○
Internal wiring
of inverter
Is the insulation of wire
broken?
○
Visual inspection
No abnormality
Replace or return
for repair
Heat-sink
Is it accumulating dust or
dirt?
○
Visual inspection No abnormality Clean up dust or dirt
Is it accumulating conductive
metal or oil stain?
○
PCB
Is there any over-heated or
burnt component?
○
Visual inspection
No abnormality
Clean up or replace
PCB
Is there any abnormal
vibration or noise?
○
Visual and audio
inspection
Replace cooling fan
Cooling fan
Is it accumulating dust or
dirt?
○
Visual inspection
No abnormality
Clean up
Power
component
Is it accumulating dust or
dirt?
○
Visual inspection No abnormality
Clean up
Is there any sign of strange
order or leakage?
○
Capacitor
Is there any sign of swelling
or bulging?
○
Visual inspection No abnormality Replace capacitor
or inverter
To Next Page
Loading...
Need help?
General
