Mitsubishi Electronics MDS-R ユーザーズマニュアル

 
 
 

 

 

7 - 2

 
 

 

1.  Wiring work must be done by a qualified technician. 
2.  Wait at least 15 minutes after turning the power OFF and check the voltage 

with a tester, etc. before starting wiring. Failure to observe this could lead to 
electric shocks. 

3.  Securely ground the drive units and servo/spindle motor.  
4.  Wire the drive units and servo/spindle motor after installation. Failure to 

observe this could lead to electric shocks. 

5.  Do not damage, apply forcible stress, place heavy items on the cables or get 

them caught. Failure to observe this could lead to electric shocks. 

6.  Always insulate the power terminal connection section. Failure to observe 

this could lead to electric shocks. 

1.  Correctly and securely perform the wiring. Failure to do so could lead to 

runaway of the servo/spindle motor resulting in possible injury. 

2.  Do not mistake the terminal connections. 
 

Failure to observe this item could lead to ruptures or damage, etc. 

3.  Do not mistake the polarity ( + ,  – ). Failure to observe this item could lead to 

ruptures or damage, etc. 

4.  Do not mistake the direction of the diodes for the surge absorption installed 

on the DC relay for the motor brake and contactor (magnetic contactor) 
control. The signal may not be output when a failure occurs. 

 

 

RA

   COM
(24VDC)

Control output

signal

Servo drive unit 

RA

      COM
(24VDC)

Control output 

signal

Servo drive unit 

 

 
5.  Electronic devices used near the drive units may receive magnetic 

obstruction. Reduce the effect of magnetic obstacles by installing a noise 
filter, etc. 

6.  Do not install a phase advancing 

capacitor, surge absorber or radio noise 
filter on the power line (U, V, W) of the 
servo/spindle motor. 

7.  Do not modify this unit. 
8.  The half-pitch connectors (CN1A, etc.) 

on the front of the drive units have the 
same shape. If the connectors are 
connected incorrectly, faults could occur. 
Make sure that the connection is correct. 

9.  Do not separately ground the connected 

motor and drive unit as noise could be 
generated. To ground the motor, connect 
to the PE terminal for the drive unit's 
CN31 connector, and connect to the 
ground from the other CN30 connector's 
PE terminal. (Ground to one point)