Connection Of Servo Amplifier And Servo Motor; Connection Instructions - Mitsubishi Electric MELSERVO-J3 Series Instruction Manual

4. SIGNALS AND WIRING

4.10 Connection of servo amplifier and servo motor

WARNING

4.10.1 Connection instructions

WARNING
CAUTION
This section indicates the connection of the servo motor power output (U, V, W). Use of the optional cable and
connector set is recommended for connection between the servo amplifier and servo motor. When the options
are not available, use the recommended products. Refer to section 14.1 for details of the options.
(1) For grounding, connect the earth cable of the servo motor to the protective earth (PE) terminal ( ) of the
servo amplifier and connect the ground cable of the servo amplifier to the earth via the protective earth of
the control box. Do not connect them directly to the protective earth of the control panel.
(2) Do not share the 24VDC interface power supply between the interface and electromagnetic brake. Always
use the power supply designed exclusively for the electromagnetic brake.
Connect the servo amplifier power output (U, V and W) to the servo motor power
input (U, V and W) directly. Do not let a magnetic contactor, etc. intervene.
Otherwise, a malfunction or fault may occur.
Servo amplifier
U
V
W
To avoid an electric shock, insulate the connections of the power supply terminals.
Connect the wires to the correct phase terminals (U, V, W) of the servo amplifier
and servo motor. Not doing so may cause unexpected operation.
Do not connect AC power supply directly to the servo motor. Otherwise, a fault
may occur.
POINT
Refer to section 14.1 for the selection of the encoder cable.
Control box
Servo
amplifier
PE terminal
Servo motor Servo amplifier
U
V
M
W
Servo motor
4 - 40
Servo motor
U
U
V
V
M
W
W