Chapter 8 Maintenance And Repair; Inspection And Maintenance; Parts For Regular Replacement - Powtran PI500-S 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
Check
Routi Regul
Points
ne ar
LED
√
Display
display
Cooling
√ √
Fan
system
Surroun
ding
√
Body
conditio
ns
Input/o
utput
√
Voltage
termina
ls
Overall
Electrol
ytic
capacita
Main
√
nce
circuit
Wires
and
conduct
ing bar
Termina
ls
"√" 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.

8-2.Parts for regular replacement

To ensure the reliable operation of inverter, in addition to regular care and maintenance, some
internal mechanical wear parts(including cooling fan, filtering capacitor of main circuit for energy
storage and exchange, and printed circuit board) shall be regularly replaced. Use and replacement
for such parts shall follow the provisions of below table, also depend on the specific application
environment, load and current status of inverter.
Check to be done
Items
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 Tighten
Method
Visually check
Visually and
audibly check
Visually check
with smelling
and feeling
Test R, S, T and
U, V, W
terminals
Visually check,
tighten and clean
Visually check
Visually check
66
Criterion
As per
use status
No abnormal
As per Section
2-1
As per
standard
specifications
No abnormal
No abnormal
No abnormal
No abnormal