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

3. SIGNALS AND WIRING

3.10 Connection of servo amplifier and servo motor

CAUTION

3.10.1 Connection instructions

WARNING
CAUTION
This section indicates the connection of the servo motor power supply (U, V, W). Use of the optional cable or
the connector set is recommended for connection between the servo amplifier and the servo motor. Refer to
section 11.1 for details of the options.
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.
Connect the servo amplifier power output (U/V/W) to the servo motor power input
(U/V/W) directly. Do not connect a magnetic contactor and others between them.
Otherwise, it may cause a malfunction.
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.
Do not use the 24VDC interface and control circuit power supplies for the
electromagnetic brake. Always use the power supply designed exclusively for the
electromagnetic brake. Otherwise, a fault may occur.
POINT
Refer to section 11.1 for the selection of the encoder cable.
Control box
Servo
amplifier
PE terminal
Servo motor
3 - 41