Instruction manual

A - 5
(5) Emergency stop
(6) Maintenance, inspection and parts replacement
(7) Disposing of the inverter
(8) General instructions
CAUTION
 The electronic thermal reray function 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 supply 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, fully examine the performances 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.
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 to internal 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 corrective appropriate action,
then reset the inverter, and resume operation.
CAUTION
 Do not carry out a megger (insulation resistance) test on the control circuit of the
inverter.
CAUTION
 Treat as industrial waste.
Many of the diagrams and drawings in this instruction manual show the inverter
without a cover, or partially open. Never operate the inverter in this manner. Always
replace the cover and follow this instruction manual when operating the inverter.
M4500E.book 5 ページ ２００５年２月２２日 火曜日 午後５時７分