Ⅶ. Maintenance And Ambient Elements - Savch S900 Series User Manual

Ⅶ. MAINTENANCE AND AMBIENT ELEMENTS
For safety and normal operation, the inverter shall be provided with daily as well as periodical maintenance.
Diagram below shows items that must be checked.
Check shall again perform after the inverter is powered off for several minutes, to prevent injury to operators caused
by residual power of inverter condenser.
Inspection Inspection
item content
Verify ambient
temperature and
Inverter
humidity
ambient
environment
Check stacking
with inflammable
materials
Check abnormal
vibration to
machine
Inverter
installing and
Check grounding
grounding
resistance
complies with
specification
Input power
Check main
supply
circuit voltage
voltage
Check security
of screwed parts
External
terminal Check terminal
securing board is not
screws of the damaged
inverter
Check no clear
rust exists
Check no
distortion
appears
Inverter inner
wiring
Check outer
shielding is not
broken
Inspection period
Daily Annual
Measure with
temperature or
humidity meter
Yes
in accordance
with notes for
installation
Yes View inspection
View and
Yes auditory
inspection
Measure
resistance with
Yes
universal
ohmmeter
Measure voltage
Yes with universal
meter
Yes
View inspection
and check
Yes screws are
secured tightly
with screwdriver
Yes
Yes View inspection
Yes View inspection
79
Inspection Assessment
method base
Temperature:
-10 to 40℃;
humidity:
below 90%RH
No foreign
materials
No foreign
materials
200V Class:
below 100Ω；
400V Class:
below 10Ω
Voltage value
complies with
specifications
All OK
All OK
All OK
Corrective
measures to fault
Improve
environments
Tighten securing
screws
Modify grounding
Modify input power
supply
Tighten or sent for
factory
maintenance and
overhaul
Replace or sent for
factory
maintenance and
overhaul