YASKAWA SGDV-OFB03A Product Manual page 36

Hardware Installation
Safety Precautions
36
CAUTION!
– Wait for six minutes after turning OFF the power supply and then
make sure that the CHARGE indicator is not lit before starting wiring
or inspection work. Do not touch the power supply terminals while the
CHARGE lamp is lit after turning OFF the power supply because high
voltage may still remain in the SERVOPACK.
There is a risk of electric shock.
– Observe the precautions and instructions for wiring and trial operation
precisely as described in this document.
Failures caused by incorrect wiring or incorrect voltage application in
the brake circuit may cause the SERVOPACK to fail, damage the
equipment, or cause an accident resulting in death or injury.
– Check the wiring to be sure it has been performed correctly.
Connectors and pin layouts are sometimes different for different
models. Always confirm the pin layouts in technical documents for
your model before operation.
There is a risk of failure or malfunction.
– Connect wires to power supply terminals and motor connection termi-
nals securely with the specified methods and tightening torque.
Insufficient tightening may cause wires and terminal blocks to gen-
erate heat due to faulty contact, possibly resulting in fire.
– Use shielded twisted-pair cables or screened unshielded multi-
twisted-pair cables for I/O signal cables and encoder cables.
– Observe the following precautions when wiring the SERVOPACK's
main circuit terminals.
– Turn ON the power supply to the SERVOPACK only after all
wiring, including the main circuit terminals, has been completed.
– If a connector is used for the main circuit terminals, remove the
main circuit connector from the SERVOPACK before you wire it.
– Insert only one wire per insertion hole in the main circuit termi-
nals.
– When you insert a wire, make sure that the conductor wire (e.g.,
whiskers) does not come into contact with adjacent wires.
– Install molded-case circuit breakers and other safety measures to
provide protection against short circuits in external wiring.
There is a risk of fire or failure.
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Sigma-5 and Sigma-7 Series SERVOPACKs