stopping of the inverter.
Use a noise filter to reduce the effect of electromagnetic interference. Otherwise
nearby electronic equipment may be affected.
Take measures to suppress harmonics. Otherwise power supply harmonics from
the inverter may heat/damage the power factor correction capacitor and
When a 400V class motor is inverter-driven, please use an insulation-enhanced
motor or measures taken to suppress surge voltages. Surge voltages
attributable to the wiring constants may occur at the motor terminals,
deteriorating the insulation of the motor.
When parameter clear or all clear is performed, reset the required parameters
before starting operations. Each parameter returns to the initial value.
The inverter can be easily set for high-speed operation. Before changing its
setting, fully examine the performances of the motor and machine.
In addition to the inverter's holding function, install a holding device to ensure
Before running an inverter which had been stored for a long period, always
perform inspection and test operation.
For prevention of damage due to static electricity, touch nearby metal before
touching this product to eliminate static electricity from your body.
(5) Emergency stop
Provide a safety backup such as an emergency brake which will prevent the
machine and equipment from hazardous conditions if the inverter fails.
When the breaker on the inverter input side trips, check for the wiring fault (short
circuit), damage to internal parts of the inverter, etc. Identify the cause of the trip,
then remove the cause and power on the breaker.
When the protective function is activated, take the corresponding corrective
action, then reset the inverter, and resume operation.
6) Maintenance, inspection and parts replacement
Do not carry out a megger (insulation resistance) test on the control circuit of the
inverter. It will cause a failure.
7) Disposing of the inverter
Treat as industrial waste.
Many of the diagrams and drawings in this instruction manual show the inverter
without a cover, or partially open. Never run the inverter in this status. Always
eplace the cover and follow this instruction manual when operating the
Device Net通訊模塊 FR-A7ND