Wiring And Connecting Servopacks; General Precautions - YASKAWA SGD7S-1R9D Product Manual

4.1

Wiring and Connecting SERVOPACKs

4.1.1

General Precautions

 Do not change any wiring while power is being supplied.
There is a risk of electric shock or injury.
 Wiring and inspections must be performed only by qualified engineers.
There is a risk of electric shock or product failure.
 Check all wiring and power supplies carefully.
Incorrect wiring or incorrect voltage application to the output circuits may cause short-circuit
failures. If a short-circuit failure occurs as a result of any of these causes, the holding brake will
not work. This could damage the machine or cause an accident that may result in death or
injury.
 Connect the AC and DC power supplies to the specified SERVOPACK terminals.
• Connect an AC power supply to the L1, L2, and L3 terminals on the SERVOPACK.
• Connect a DC power supply to the B1 and
SERVOPACK.
There is a risk of failure or fire.
 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 terminals securely with the
specified methods and tightening torque.
Insufficient tightening may cause wires and terminal blocks to generate heat due to faulty con-
tact, 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 ter-
minals, 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 terminals.
• 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.

4.1 Wiring and Connecting SERVOPACKs

DANGER
WARNING
2 terminals and the 24 V and 0 V terminals on the
CAUTION

4.1.1 General Precautions

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