Chapter 9 Maintenance And Repair - Powtran PI9000 series User Manual

Chapter 9 Maintenance and Repair

Chapter 9 Maintenance and Repair
9-1.Inspection and Maintenance
During normal use of the inverter, in addition to routine inspections, the regular
inspections are required (e.g. the overhaul or the specified interval, and the interval shall
not exceed 6 months), please refer to the following table to implement the preventive
measures.
Check Date
Routine Regular
√
√ √
√
√
√
"√" means routine or regular check to be needed
Do not disassemble or shake the device gratuitously during check, and never
unplug the connectors, otherwise the system will not run or will enter into fault state and
lead to component failure or even damage to the main switching device such as IGBT
module.
Check Check
Points Items
Display LED display
Cooling
Fan
system
Surrounding
Body
conditions
Input/output
Voltage
terminals
Overall
Main circuit
Electrolytic
capacitance
Wires and
conducting
bar
Terminals
Check to be
done
Whether display
is abnormal or
not
Whether
abnormal noise
or vibration
exists or not
Temperature,
humidity,
dust, harmful
gas.
Whether
input/output
voltage
is abnormal or
not
Whether these
phenomenon of
loose fastenings,
overheat,
discharging,
much dust, or
blocked air duct
exist or not
Whether
appearance is
abnormal or not
Whether they are
loose or not
If screws or bolts
are loose or not
200
Method Criterion
Visually As per
check use status
Visually
and
No abnormal
audibly
check
Visually
check with As per
smelling and Section 2-1
feeling
Test R, S,
As per
T and U,
standard
V, W
specifications
terminals
Visually
check,
No abnormal
tighten and
clean
Visually
No abnormal
check
Visually
No abnormal
check
Tighten No abnormal