Powtran PB200 Series, Руководство по эксплуатации

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18
Chapter 7 Maintenance and repair
7-1.Inspection and maintenance
During normal use of the brake unit, in addition to routine inspections, the regular inspections
are required, please refer to the following table to implement the preventive measures.
Check Date
Check
Points
Check
Items
Check to be done Method Criterion
Routi
ne
Regu
lar
√ Display
LED
display
Whether display is
abnormal or not
Visually
check
As per use
status
√ √ Cooling
system
Fan
Whether abnormal noise
or vibration exists or not
Visually and
audibly check
No
abnormal
√ Body
Surrounding
conditions
Temperature, humidity,
dust, harmful gas.
Visually
check with
smelling and
feeling
As per
Section 2-1
√
Input/
output
terminals
Voltage
Whether input/output
voltage
is abnormal or not
Test R, S, T
and U, V, W
terminals
As per
standard
specificatio
ns
√
Main
circuit
Overall
Whether these
phenomenon of loose
fastenings, overheat,
discharging, much dust,
or blocked air duct exist
or not
Visually
check, tighten
and clean
No
abnormal
Electrolytic
capacitance
Whether appearance is
abnormal or not
Visually
check
No
abnormal
Wires and
conducting
bar
Whether they are loose
or not
Visually
check
No
abnormal
Terminals
If screws or bolts are
loose or not
Tighten
No
abnormal
"√" 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.
7-2.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.
Name of Parts Standard life time
Cooling fan 1 to 3 years
Printed circuit board(PCB) 5 to 8 years