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2 Wiring and Connection
MITSUBISHI CNC
2 - 26
2-5-3 Connection of the spindle motor
Refer to each motor specifications for details on the motor side connection destination, specifications and
outline, and for the spindle PLG detector specifications.
(1) Connecting the motor built-in PLG
For a 3-phase cooling fan, when the phase sequence of the 3-phase power supply is connected
reversely, its cooling capacity degrades due to the reversed rotation direction. Make sure the air
blowoff direction.
When the fan rotates reversely, reconnect BU and BW reversely, and then check the blowoff
direction.
U V W
MDS-D-SPJ3
BU BW BV
LG
RQ*
MT2
SD*
2
4
6
8
10
P5(+5V)
RQ
MT1
SD
1
3
5
7
9
CN2
U
V
W
No.2 No.10
No.1 No.9
NamePinNamePin
Max. 30m
Spindle motor
Power cable
Option cable: CNP2E-1
(Note) Either a single-phase or 3-phase power supply is used for the cooling fan.
Refer to the Spindle Motor Specifications for details.
Pin No.
Detector connector : CN2
Single-phase
or
3-phase
power supply
Cooling fan terminal
block (BU,BV,BW)
Grounding terminal
Motor power terminal
block (U,V,W)
Example for 3-phase cooling fan
power supply
Detector connector
CAUTION