A - 4
CAUTION
!
The electronic thermal relay does not guarantee protection of the motor from overheating.
!
Do not use a magnetic contactor on the inverter input for frequent starting/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 harmonics from the inverter may
heat/damage the power capacitor and generator.
!
When a 400V class motor is inverter-driven, it should be insulation-enhanced or surge voltages
suppressed. 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, each parameter returns to the factory setting. Re-set
the required parameters before starting operation.
!
The inverter can be easily set for high-speed operation. Before changing its setting, examine the
performance of the motor and machine.
!
In addition to the inverter's holding function, install a holding device to ensure safety.
!
Before running an inverter which had been stored for a long period, always perform inspection and
test operation.
(5) Emergency stop
CAUTION
!
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 primary side trips, check for the wiring fault (short circuit), damage
of the inner parts of the inverter, etc. Identify the cause of the trip, then remove the cause and power
on the breaker.
!
When any protective function is activated, take the corresponding corrective action, then reset the
inverter, and resume operation.
(6) Maintenance, inspection and parts replacement
CAUTION
!
Do not carry out a megger (insulation resistance) test on the control circuit of the inverter.
(7) Disposing of the inverter
CAUTION
!
Treat as industrial waste.
(8) General instructions
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 manner. Always replace the cover and follow this instruction manual
when operating the inverter.
Summary of Contents for FR-F500 Series
Page 221: ......
