Yaskawa Sigma-5 Safety Precautions for SGDV Servo Amplifier - Manual (Page 9)

E-7
Wiring
CAUTION
• Be sure to wire correctly and securely.
Failure to observe this caution may result in motor overrun, injury, or
malfunction.
• Do not connect a commercial power supply to the U, V, or W ser-
vomotor connection terminals.
Failure to observe this caution may result in injury or fire.
• Securely connect the power supply terminal screws and servo-
motor connection terminal screws.
Failure to observe this caution may result in fire.
• Do not bundle or run the main circuit cables and input/output sig-
nal lines or the encoder cables 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 input/output signal lines and the encoder
cables.
The maximum length is 3 m for input/output signal lines and 20 m for
encoder cables.
• Do not touch the power terminals for 5 minutes after turning
power OFF because high voltage may still remain in the SERVO-
PACK.
Make sure the charge indicator is out first before wiring or starting an
inspection.
• Observe the following precautions when wiring main circuit termi-
nal blocks.
• If the main circuit terminal is the connector, remove the connector
from the SERVOPACK prior to wiring.
• Insert only one wire per insertion slot on the terminal block and the
connector.
• Make sure that the core wire is not electrically shorted to adjacent core
wires.