Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 76

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
The power supplied to the power input terminals (L
the defined specifications. (Refer to section 1.3.)
(b) Connection of servo amplifier and servo motor
1) The servo motor power supply terminals (U, V, W) of the servo amplifier match in phase with the
power input terminals (U, V, W) of the servo motor.
2) The power supplied to the servo amplifier should not be connected to the servo motor power supply
terminals (U, V, W). To do so will fail the connected servo amplifier and servo motor.
3) The earth terminal of the servo motor is connected to the PE terminal of the servo amplifier.
4) The built-in regenerative resistor is connected to the P
(c) When option and auxiliary equipment are used
When regenerative option is used
The generative brake option should be connected to P
A twisted cable should be used. (Refer to section 11.2.)
, L , L , L
1 2 3 11
Servo amplifier
U
V
W
W
Servo amplifier
U V W
Servo amplifier
terminal and the C terminal.
Servo amplifier
P
Built-in
regenerative
resistor
C
terminal and C terminal.
4 - 3
, L ) of the servo amplifier should satisfy
21
Servo motor
U
V
M
Servo motor
M
U V W
Servo motor
M