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AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
Chapter 4 Basic Operation and Trial Run
4.1 Safety Precautions
Important
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, there is danger of electric shock and fire.
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Before wiring please cut power supply of allrelated equipments and ensure main DC
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voltage in safe range. And please do operation after 5 mins.
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
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of electric shock.
Please do not touch the printed circuit board of the inverter while it is electrified.
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Otherwise, there is danger of electric shock.
Please ensure reliable mains cableconnection. If the mains cable is loose, thereis danger
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of fire caused by joint overheat.
Before electrifying, please check the power voltage again. Wrong power voltage can
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cause fault or damage the inverter, even cause fire.
Please do not install inverter on flammable material or attach flammable material to the
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inverter. Before electrifying, please clear the surroundings.
While operation, please follow the ESD regulations. Otherwise, the inverter maybe
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damaged.
Please don't cut the power directly while the inverter drives the motor running. The power
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can't be cut until the motor totally stop. Otherwise, the inverter maybe damaged.
Please don't cut or connect motor while the inverter drives the motor running. The motor
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can't be cut or connect until the inverter output is 0. Otherwise, the inverter maybe
damaged.
Control cable should be twisted-pair shielded cable. The barrier should be connected to
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the inverter earth terminal reliably to prevent the inverter from abnormal working.
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
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is not in our quality assurance range.
BASIC OPERATION AND TRIAL RUN
34
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