iv
Trial Operation
Maintenance and Inspection
WARNING
• Check to be sure that the panel door is closed before turning on the power supply. Do not open the
panel door during operation.
An electric shock may occur.
• Do not come close to the machine when the fault reset function is used. If the alarmed is cleared,
the machine may start moving suddenly.
Also, design the machine so that human safety is ensured even when it is restarted.
Injury may occur.
• Provide a separate emergency stop switch; the Digital Operator STOP Key is valid only when its
function is set.
Injury may occur.
CAUTION
• Do not touch the main circuit section. These can become very hot.
Otherwise, a burn injury may occur.
• Be sure that the motor and machine is within the applicable ranges before starting operation.
Otherwise, an injury may occur.
• Do not check signals while the Inverter is running.
Otherwise, the equipment may be damaged.
• 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 close the panel door when power is being supplied to the Inverter. When opening the panel
door, 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 on the cell
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.
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.
