Omron VARISPEED V7 Guide De Démarrage Rapide page 4

Wiring
• Only begin wiring after verifying that the power supply is turned OFF.
Failure to observe this warning may result in an electric shock or a fire.
• Wiring should be performed only by qualified personnel.
Failure to observe this warning may result in an electric shock or a fire.
• When wiring the emergency stop circuit, check the wiring thoroughly before operation.
Failure to observe this warning may result in injury.
• Always ground the ground terminal
Failure to observe this warning may result in an electric shock or a fire.
• For 400V class, make sure to ground the supply neutral.
Failure to observe this warning may result in an electric shock or a fire.
• If the power supply is turned ON during the FWD(or REV) RUN command is given, the
motor will start automatically.
Turn the power supply ON after verifying that the RUN signal is OFF.
Failure to observe this warning may result in injury.
• When the 3-wire sequence is set, do not make the wiring unless the multi-function input
terminal parameter is set.
Failure to observe this warning may result in injury.
• Verify that the Inverter rated voltage coincides with the AC power supply voltage.
Failure to observe this caution may result in personal injury or a fire.
• Do not perform a withstand voltage test on the Inverter.
Performing withstand voltage tests may damage semiconductor elements.
• To connect a Braking Resistor, Braking Resistor Unit, or Braking Unit, follow the
procedure described in this manual.
Improper connection may cause a fire.
• Always tighten terminal screws of the main circuit and the control circuits.
Failure to observe this caution may result in a malfunction, damage or a fire.
• Never connect the AC main circuit power supply to output terminals U/T1, V/T2, W/T3,
B1, B2, -, +1 or +2.
The Inverter will be damaged and the guarantee will be voided.
• Do not connect or disconnect wires or connectors while power is applied to the circuits.
Failure to observe this caution may result in injury.
• Do not perform signal checks during operation.
The machine or the Inverter may be damaged.
• To store the constant with an ENTER command by communications, be sure to take
measures for an emergency Stop by using the external terminals.
Delayed response may cause injury or damage the machine.
WARNING
according to the local grounding code.
CAUTION
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