11 Maintenance and Inspection
11 - 4
High-function General-purpose Inverter 3G3RX-V1 User's Manual (SBCE-367)
11-1 Inspection
Check the following during operation.
• The motor operates according to the settings.
• There are no faults in the installation environment.
• There are no faults in the cooling system.
• There are no abnormal vibration and sound.
• There are no abnormal overheat and discoloration.
• There is no abnormal odor.
Check the input voltage of the inverter during operation by using a tester or other measuring equipment.
• There is no frequent power supply voltage fluctuation.
• The line voltage is balanced.
Check the parts that must be checked with the operation stopped, as well as those that require periodic
inspection:
• Check for faults in the cooling system: Clean air filter etc.
• Check for loose screws and retightening:
The screws, bolts, and other tightened parts may become loose due to vibration, temperature
change, or other influences. Check carefully and retighten if necessary.
• Check for corrosion or damage to conductors and insulators.
• Measure the insulation resistance.
• Check and replace the cooling fan, smoothing capacitor, and relay.
11-1-1 Daily Inspection
11-1-2 Periodic Inspection
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