8-3
8-1 Inspection and Maintenance
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
8
Inspection and Maintenance
Daily Inspection and Periodic Inspection
Inspection
part
Inspection
item
Inspection point
Inspection
period
Inspection
method
Criteria
Measurement
device
Daily
Periodic
1 year
2 years
General
Ambient
environment
Check ambient
temperature, as
well as humidity
and dust levels.
√
Refer to
"Installation" on
page 2-1.
The ambient
temperature shall
be −10 to 50 °C,
non-freezing, and
the ambient
humidity shall be
90% or below,
non-condensing.
Thermometer
Hygrometer
Recorder
Entire
device
Check that there are
no abnormal
vibrations or sounds.
√
Visual or acoustic
inspection
No faults
Power
supply
voltage
Check that the
main circuit
voltage is normal. √
Measure the
voltage between
the Inverter main
circuit terminals R/
L1, S/L2 and T/L3.
Must be within
allowable
fluctuation of AC
voltage.
Tester,
digital
multimeter
Main
circuit
General Megger check
(between main
circuit terminal
and ground
terminal)
√
Remove the I/O
wirings of the
Inverter's main
circuit terminal
block, remove the
control terminal
block board, and
remove the
Inverter's built-in
filter function
switching shorting
bar, and then use
a megger to
measure between
the shorted part of
each terminal R/
L1, S/L2, T/L3, U/
T1, V/T2, W/T3,
P/+2, +1, N/− or
RB and the
ground terminal.
5 MΩ min.
500 V
class DC
megger
Check that any
parts which may
need tightening
are secure.
√
Tighten securely. No faults
Check that no
part has
indications of
overheating.
√
Visual inspection No faults
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