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MDS-D-SVJ3/SPJ3 Series Instruction Manual
2-1 Part system connection diagram
2 - 3
2-1 Part system connection diagram
(Note 1) The total length of the optical communication cable from the NC must be within 30m and the
minimum-bending radius within 80mm.
(Note 2) The connection method will differ according to the used motor.
(Note 3) Install the dedicated battery for the detector back up outside of the drive unit's bottom surface.
(Note 4) The main circuit ( ◎ ), control circuit ( ○ ) and ground ( ● ) are safely separated.
(Note 5) Connect the ground of the motor to the ground of the connected drive unit.
OPT1,2
CN1A
CN9
CN1B
U
V
W
CN2
PLG
CN3
CN1A
CN9
CN1B
U
V
W
CN2
CN3
L1
L2
L3
L11
L21
P
C
P
C
L1
L2
L3
L11
L21
T
S
R
CNP2
CNP1
CNP2
CNP3
CNP2
CNP1
CNP2
CNP3
T
S
R
D
Main circuit
Control circuit
Mitsubishi CNC
Servo drive unit
Ground
Motor side
detector
Spindle drive unit
Ground
Machine side
detector
Optical communication cable
Optical communication
cable
Regenerative
resistor unit
Spindle
motor
Servo
motor
Circuit
protector
Contactor
Spindle side
detector
Contactor
Circuit
protector
Circuit
protector
Circuit
protector
Regenerative
resistor unit
When using a built-in
regenerative resistor,
use a shorted wire.
Ground