Wiring - Omron VARISPEED V7 User Manual

4 Wiring

WARNING
CAUTION
28
• Only begin wiring after verifying that the power sup-
ply is turned OFF.
Failure to observe this warning may result in an
electric shock or a fire.
• Wiring should be performed only by qualified per-
sonnel.
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.
• For the 400 V Class, make sure to ground the supply
neutral.
Failure to observe this warning may result in an
electric shock or a fire.
• Verify that the Inverter rated voltage coincides with
the AC power supply voltage.
Failure to observe this caution may result in per-
sonal injury or a fire.
• Do not perform a withstand voltage test on the
Inverter.
Performing withstand voltage tests may damage
semiconductor elements.
• Always tighten terminal screws of the main circuit
and the control circuits.
Failure to observe this caution may result in a mal-
function, 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 a constant with an Enter Command by com-
munications, be sure to take measures for an emer-
gency stop by using the external terminals.