Wiring Check - Mitsubishi Electric MR-J4 Instruction Manual

4. STARTUP

4.1.2 Wiring check

(1) Power supply system wiring
Before switching on the main circuit and control circuit power supplies, check the following items.
(a) Power supply system wiring
1) The power supplied to the power input terminals (L1, L2, L3, L11, and L21) of the servo amplifier
should satisfy the defined specifications. (Refer to section 1.3.)
2) Between P3 and P4 should be connected.
(b) Connection of servo amplifier and servo motor
1) The servo amplifier power output (U, V, and W) should match in phase with the servo motor
power input terminals (U, V, and W).
2) The power supplied to the servo amplifier should not be connected to the power outputs (U, V,
and W). To do so will fail the connected servo amplifier and servo motor.
3) The grounding terminal of the servo motor is connected to the PE terminal of the servo amplifier.
4) The CN2 connector of the servo amplifier should be connected to the encoder of the servo motor
securely using the encoder cable.
Servo amplifier
P3
(Note)
P4
Note. The 100 V class servo amplifiers do not have P3 and P4.
Servo amplifier
U
V
W
Servo amplifier
L1
L2
L3
Servo amplifier
4 - 3
Servo motor
U
V
M
W
Servo motor
U
U
V
V
M
W
W
Servo motor
M