Operation; Checkpoints Before Turning On The Power Supply - YASKAWA VARISPEED-656RC5 Instruction Manual

4

OPERATION

4.1

CHECKPOINTS BEFORE TURNING ON THE POWER SUPPLY

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Only turn ON the input power supply after replacing the front cover or
D
the terminal cover. Do not remove the cover while current is flowing.
Failure to observe this warning can result in an electric shock.
Never operate the digital operator or other switches when your hand is
D
wet.
Failure to observe this warning can result in an electric shock.
Never touch the terminals while current is flowing, even if the power
D
regenerative unit stops.
Failure to observe this warning can result in an electric shock.
Never touch the heatsink or input reactor since the temperature is very
D
high.
Failure to observe this caution can result in harmful burns to the body.
All the constants of the power regenerative unit have been preset at the
D
factory. Do not change the settings unnecessarily.
The power regenerative unit may be damaged.
Check the following before turning ON the power supply.
S Check that the power supply is of the correct voltage.
200 V class: 200 to 230 VAC, 50/60 Hz
400 V class: 380 to 460 VAC, 50/60 Hz
S Make sure that the power regenerative unit and the Inverter are connected
correctly.
S Make sure that the phase sequence of the main circuit terminals (R/L1,
S/L2, T/L3) and the power supply voltage detection terminals (r1/ 11,
1/ 21, t1/ 31) are correct.
S Make sure that the power regenerative unit and the control device are wired
correctly.
S Set the run command of the power regenerative unit and the inverter to OFF.
WARNING
CAUTION