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

 
 
 

 

 

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(3)  Magnetic brake power supply 

 

 

 

1.  Always install a surge absorber on the brake terminal when using DC OFF. 
2.  Do not pull out the cannon plug while the brake power is ON. The cannon 

plug pins could be damaged by sparks. 

 
 

1)  Prepare a brake excitation power supply that can accurately ensure the attraction current 

in consideration of the voltage fluctuation and excitation coil temperature. 

2)  The brake terminal polarity is arbitrary. Make sure not to mistake the terminals with other 

circuits. 

 

1) AC OFF and 2) DC OFF can be used to turn OFF the brake excitation power supply (to apply 
the brake). 

 

1) AC 

OFF 

The braking delay time will be longer, but the excitation circuit will be simple, and the relay 
cut off capacity can be decreased. 

 
2) DC 

OFF 

The braking delay time can be shortened, but a surge absorber will be required and the 
relay cut off capacity will be increased. 

 

<Cautions> 
 Provide sufficient DC cut off capacity at the contact. 
 Always use a surge absorber. 

 
 

 

24VDC

PS

SW2

VAR2

SW1

VAR1

Magnetic brake 1 

ZD1

ZD2

100VAC or 
200VAC 

Magnetic brake 2 

 
 
 
 
 
 
 
 
 
 
 
 

PS  
ZD1, ZD2 
VAR1, VAR2 

:  24VDC stabilized power supply 
: Zener diode for power supply protection (1W, 24V) 
: Surge absorber