Chapter 8 Maintenance And Repair; Inspection And Maintenance - Powtran PI160 Series Manual

Chapter 8 Maintenance and repair

8-1.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
Check Points Check Items Check to be done
Routine Regular
√
Display
Cooling
√ √
system
√
Body
Input/output
√
terminals
Main
√
circuit
"√" 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.
The different instruments may come to different measurement results when measuring. It is
recommended that the pointer voltmeter shall be used for measuring input voltage, the rectifier
voltmeter for output voltage, the clamp-on ammeter for input current and output current, and the
electric wattmeter for power.
Whether
LED
display is
display
abnormal or not
Whether
abnormal noise
Fan
or vibration
exists or not
Temperature,
Surrounding humidity,
conditions dust, harmful
gas.
Whether
input/output
Voltage voltage
is abnormal or
not
Whether these
phenomenon of
loose
fastenings,
Overall overheat,
discharging,
much dust, or
blocked air duct
exist or not
Whether
Electrolytic
appearance is
capacitance
abnormal or not
Wires and
Whether they
conducting
are loose or not
bar
If screws or
Terminals bolts are loose
or not
117
Method Criterion
Visually As per use
check status
Visually
and No
audibly abnormal
check
Visually
As per
check with
Section 2-
smelling
1
and feeling
Test R, S,
As per
T and U,
standard
V, W
specifications
terminals
Visually
check, No
tighten and abnormal
clean
Visually No
check abnormal
Visually No
check abnormal
No
Tighten
abnormal