Caution – Yaskawa AC Servo Drives Sigma II Series User Manual
Page 7
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