
2.HOW TO USE SERVO MOTORS SPECIFICATIONS FOR THE αiS/αi SERIES B-65262EN/03
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2.2.2 Connections Related to a Servo Motor
For the FANUC AC Servo Motor αis/αi series, connect the power
line of the motor and the signal line of a Pulsecoder to an FANUC
Servo Amplifier. When the motor has a built-in brake or cooling fan
as an option, connect the built-in brake or cooling fan to the specified
power supply.
Connection diagram
Connecting the power line
For details of how to connect the power connector or terminal box on
the servo motor side, see "Connecting the Power Line" in Parts II and
afterward in this manual.
For details of the connector of a cable connected to the servo motor,
see Subsection I-2.2.3, "Connector," in this manual.
For details of selection of a power line and the shapes of the
connector and terminal connected to a servo amplifier, refer to
"FANUC SERVO AMPLIFIER αi series Descriptions (B-65282EN)."
WARNING
Securely connect power wires and short bars to the
terminal block with the specified tightening torque
according to the procedures described in this
section. If a motor runs with a wire loosely
connected, the terminal block may get abnormally
hot, resulting in a fire. The wire may also be
disconnected, resulting in a ground fault, short
circuit, or electric shock.
Signal line
(Pulsecoder)
Power line (motor)
Brake
Cooling fan
24VDC
power supply
AC power supply
FANUC
Servo Amplifier
FANUC
Servo Motor