v
Maintenance and Inspection
Other
• Be careful when changing Inverter settings. The Inverter is factory set to suitable settings.
Otherwise, the equipment may be damaged.
WARNING
• Do not touch the Inverter terminals. Some of the terminals carry high voltages and are extremely
dangerous.
Doing so can result in electric shock.
• Always have the protective cover in place when power is being supplied to the Inverter. When
attaching the cover, always turn OFF power to the Inverter through the MCCB.
Doing so can result in electric shock.
• After turning OFF the main circuit power supply, wait until the CHARGE indicator light goes out
before performing maintenance or inspections.
The capacitor will remain charged and is dangerous.
• Maintenance, inspection, and replacement of parts must be performed only by authorized person-
nel.
Remove all metal objects, such as watches and rings, before starting work. Always use grounded tools.
Failure to heed these warning can result in electric shock.
• For 400-V class Inverters of 55 kW to 300 kW with SPEC E or later, take safety measures such as
the installation of an emergency-stop switch before adjusting constants.
Failure to do so may result in injury caused by the motor accidentally rotating during stationary autotuning performed by
the Inverter when the constants are adjusted.
CAUTION
• A CMOS IC is used in the control board. Handle the control board and CMOS IC carefully.
The CMOS IC can be destroyed by static electricity if touched directly.
• Do not change the wiring, or remove connectors or the Digital Operator, during operation.
Doing so can result in personal injury.
WARNING
• Do not attempt to modify or alter the Inverter.
Doing so can result in electrical shock or injury.
CAUTION
• Do not subject the Inverter to halogen gases, such as fluorine, chlorine, bromine, and iodine, at any
time even during transportation or installation.
Otherwise, the Inverter can be damaged or interior parts burnt.
CAUTION
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