AC70 VC CONTROL FREQUENCY INVERTER MANUAL
BASIC OPERATION AND TRIAL RUN
37
Chapter 4: Basic Operation and Trial Run
4.1 Safety Precautions
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No wiring while power supply is connected.Otherwise there is danger of electric shock.
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No operation while the cover is open.Otherwise, there is danger of electric shock.
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Please ensure reliable earth. Otherwise
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there is danger of electric shock and fire.
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Before wiring please cut power supply of all related equipments and ensure main DC
voltage in safe range. And please do operation after 5 mins.
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Only professional trained person is allowed to operate this product.
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Please do not dismantle the inverter cover while it is electrified. Otherwise, there is danger
of electric shock.
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Please do not touch the printed circuit board of the inverter while it is electrified.
Otherwise, there is danger of electric shock.
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Please ensure reliable mains cable connection. If the mains cable is loose, there is danger
of fire caused by joint overheat.
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Before electrifying, please check the power voltage again. Wrong power voltage can
cause fault or damage the inverter, even cause fire.
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Please do not install inverter on flammable material or attach flammable material to the
inverter. Before electrifying, please clear the surroundings.
Important
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While operation, please follow the ESD regulations. Otherwise, the inverter maybe
damaged.
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Please don’t cut the power directly while the inverter drives the motor running. The power
can’t be cut until the motor totally stop. Otherwise, the inverter maybe damaged.
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Please don’t cut or connect motor while the inverter drives the motor running. The motor
can’t be cut or connect until the inverter output is 0. Otherwise, the inverter maybe
damaged.
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Control cable should be twisted-pair shielded cable. The barrier should be
connected to the inverter earth terminal reliably to prevent the inverter from abnormal
working.
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Unprofessional person can not operate, install, wiring, debug and maintain.
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Change, dismantle or maintain without permission may cause inverter damage. This case
is not within our quality assurance range.
