Mitsubishi Electronics IB-1500193(ENG)-D ユーザーズマニュアル

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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* 
 
 



10 
 
P5(+5V) 
RQ 
MT1 
SD 
 
 




CN2
 
U  

W  
BWBW
BVBV
BUBU
No.2   No.10
No.1   No.9
Name
Pin
Name
Pin
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