8-5
8-1 Inspection and Maintenance
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
8
Inspection and Maintenance
Cooling
system
Cooling
fan
Check that there
are no abnormal
vibrations or
sounds.
√ Rotate manually
when the power is
off.
Rotation shall be
smooth and free
from error.
Reference of the
replacement period:
10 years
*2 , *3
Check that the
connection parts
are secure.
√ Visual inspection
Cooling
Fin
Check that there
is no clogging.
√ Visual inspection No clogging.
Fault
display
Fault
display
Check that the
LED indicators
are lit properly.
√ Visual inspection Check that the
LED indicators
are lit.
Cleaning √ Clean with a
waste cloth.
Meter Check that the
indicated value is
normal.
√
Check the indicated
values on the panel
meters.
The specified or
control values
must be satisfied.
Voltage,
Ammeter,
etc.
Motor General Check that there
are no abnormal
vibrations or
sounds.
√ Acoustic, feeling,
and/or visual
inspection
No faults
Check that there
are no abnormal
odors.
√ Check that there
is no abnormal
odor caused by
damage or
overheating.
No faults
Insulation
resistance
Megger check
(Between the
collective motor
terminals and
ground terminal)
√ Disconnect
Inverter main
circuit terminals
U/T1, V/T2, and
W/T3, and short-
circuit the motor
wires (3 phases).
Then, use a
megger to
measure the
resistance
between the
motor wires and
ground terminal.
5 MΩ min. 500 V
class DC
megger
*1.Smoothing capacitor life depends on ambient temperature.
Refer to " Appendix-2 Smoothing Capacitor Life Curve" for the replacement reference.
*2.The life of the cooling fan varies depending on the environmental conditions, such as ambient
temperature and/or dust. Check the operation through daily inspections.
*3.The replacement reference (year/cycles) and diagram of smoothing capacitor life are based on the
expected design life, which is not guaranteed.
Inspection
part
Inspection
item
Inspection point
Inspection
period
Inspection
method
Criteria
Measurement
device
Daily
Periodic
1 year
2 years
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