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6-5
6-1 Inspection and Maintenance
6
Inspection and Maintenance
Main
circuit
Relay
terminal
block
Check that there is no
abnormal sound
during operation.
3
Acoustic
inspection
No faults
⎯
Resistor
Check that there are
no large fissures or
discoloration in the
resistance insulation.
3
Visual
inspection
No faults
⎯
Tester
Cooling fan
Check that there are
no abnormal vibrations
or sounds.
Check that there is no
dirt or dust.
*2
Check that the fan is
mounted correctly.
3
3
3
Rotate
manually
when the
power is off.
Visual
inspection
Visual
inspection
Smooth rotation
2 to 3
years
Control
circuit
Operation
check
Check the balance of
output voltage levels
between phases in
single Inverter run.
Check that there are
no errors in trip
detection and the
display circuit
throughout the
operation of sequence
protection.
3
3
Measure
the phase-
to-phase
voltage
between
Inverter
output
terminals U/
T1, V/T2,
and W/T3.
Simulate
the Inverter
trip circuit
output
Ex) Use an
external trip
etc.
Voltage
difference
between phases
2% max.
Operates with no
faults
⎯
Digital
multimeter
Rectifier
Voltmeter
Parts
check
(including
PCB)
General
Check that there are
no abnormal odors or
discoloration.
Check that there is no
significant rusting.
3
3
Visual
inspection
No faults
⎯
⎯
Capacitor
Check that there is no
liquid leakage or
deformation.
3
Visual
inspection
*1
⎯
Inspection
part
Inspection
item
Inspection point
Inspection
period
Inspection
method
Criteria
Standard
replacement
period
Meter
Daily
Periodic
*1. The life of the capacitor depends on ambient temperatures. Refer to the product life curve in Appendix-2.
When the capacitor stops operating at the end of the product's life, the Inverter must be replaced.
*2. Clean the Inverter periodically. Accumulated dust in or on the cooling fan or heat sink can cause the Inverter
to overheat.
Summary of Contents for JX-A4004
Page 2: ......
Page 16: ...14 About This Manual ...
Page 19: ...Chapter 1 Overview 1 1 Functions 1 2 1 2 Appearance and Names of Parts 1 4 ...
Page 24: ......
Page 25: ...Chapter 2 Design 2 1 Installation 2 2 2 2 Wiring 2 7 ...
Page 79: ...Chapter 4 Functions 4 1 Monitor Mode 4 2 4 2 Function Mode 4 6 ...
Page 174: ...5 8 5 2 Troubleshooting 5 Maintenance Operations ...
Page 175: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 2 6 2 Storage 6 8 ...
Page 199: ...Appendix Appendix 1Parameter ListApp 2 Appendix 2Product Life CurveApp 18 ...
Page 217: ...INDEX ...
Page 220: ......