Caution – Yaskawa AC Servo Drives Sigma II Series User Manual

Page 7

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5 NOTES FOR SAFE OPERATION

E-5

„

WIRING

„

OPERATION

• Provide the specified clearances between the SERVOPACK and the control panel or with other

devices.

Failure to observe this caution may result in fire or malfunction.

• Do not apply any strong shock.

Failure to observe this caution may result in malfunction.

• Be sure to wire correctly and securely.

Failure to observe this caution may result in motor overrun, injury, or malfunction.

• Do not connect a three-phase power supply to the U, V, or W output terminals.

Failure to observe this caution may result in injury or fire.

• Securely connect the power supply terminal screws and motor output terminal screws.

Failure to observe this caution may result in fire.

• Do not bundle or run power and signal lines together in the same duct. Keep power and signal

lines separated by at least 30 cm.

• Use twisted-pair shielded wires or multi-core twisted pair shielded wires for signal and encoder

(PG) feedback lines.

The maximum length is 3 m for reference input lines and is 20 m for PG feedback lines. If feelback lines are
longer than 20 m, use the 50 m cable.

• Conduct trial operation on the servomotor alone with the motor shaft disconnected from machine to

avoid any unexpected accidents.

Failure to observe this caution may result in injury.

• Before starting operation with a machine connected, change the settings to match the parameters

of the machine.

Starting operation without matching the proper settings may cause the machine to run out of control or mal-
function.

CAUTION

CAUTION

CAUTION

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