Mitsubishi Electric Freqrol-A100 Instruction Manual page 6

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CAUTION
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Switch off the start signal when resetting the inverter. Failure to do so may start the motor
immediately after reset.
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The load used must be a three-phase induction motor. If any other electrical equipment is
connected to the inverter output, the equipment may be damaged.
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Do not modify the equipment.
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CAUTION
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The electronic motor thermal protection does not guarantee to prevent motor burn out.
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Do not use a contactor on the inverter input for frequent starting/stopping of the inverter.
use control signals.
To reduce the effect of mains conducted electromagnetic interference, use a RFI noise filter.
Take care to ensure that electromagnetic radiation from the inverter does not damage or
affect the operation of nearby electrical equipment.
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Take adequate measures, e. g. install a reactor, to prevent power harmonics generated by
the inverter, which may cause the power capacitor and generator to overheat or burn.
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An inverter-driven 400V class motor should be insulation-enhanced. Surge voltages
attributable to the wiring constant may occur at motor terminals, deteriorating the insulation
of the motor.
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When parameter clear or all parameter clear is performed, each parameter returns to the
factory setting. Re-set the required parameters before starting operation.
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The inverter can be easily set for high-speed operation. Before changing its setting, fully
examine the performances of the motor and machine.
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The inverter does not have a holding stop facility. For emergency stop another circuit must
be used.
(5) Emergency stop
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CAUTION
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Provide a safety backup such as an emergency brake which will prevent the machine and
equipment from hazardous conditions if the inverter fails.
(6)
Maintenance, inspection and parts replacement
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DO not carry out a megger (insulation resistance) test on the control circuit of the inverter.
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(7) Disposing of the inverter
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CAUTION
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Treat as industrial waste.
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(8)
General instructions
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Many of the diagrams and drawings in this instruction manual show the inverter without a cover,
or partially open. Never run the inverter like this. Always replace the cover and follow this
instruction manual when operate the inverter.