30  RHD250 to 4000 (Contrac) ELECTRICAL ROTARY ACTUATOR |  SEI/RHD250/4000-EN REV. A   
 
 
… 7  Electrical test values 
Test values (Brake and Motor) 
Brake voltage 
DC 135 V with AC 115/AC230 V mains supply. 
 
Motor voltage 
Check for currents symmetry (i. e. with clip-on ammeter). 
 
Winding resistance 
Depending on the actuator version proceed as follows: 
•  Open the motor terminal box.  
•  Refer to the values in table for proper resistance values of 
motor and brake windings. 
 
Position of the cable gland may vary; cable numbers are printed 
on the cable; terminal no. only for reference purpose (expl. 
picture for motor series 1) 
 
 
  Terminal 6 for cable 6 
  Terminal 3 for cable 3 
  Terminal 2 for cable 2 
  Terminal 1 for cable 1 
  Terminal 4 
  ground  
  Terminal 5 for cable 5 
Figure 53:  Motor terminal box for MCS71BA 
 
MCS 71 BA 
 
 % at 20 °C (motor);  
; 4-1 / 4-2 / 4-3 
21 
Winding resistance ±5 % at 20 °C (brake); terminal 5-6 
 
 
 
  Terminal 1 for cable 1 
  Terminal 2 for cable 2 
  Terminal 3 for cable 3 
  Terminal 6 for cable 6 
  Terminal 5 for cable 5 
  ground  
  Terminal 4 
Figure 54:  Motor terminal box for; MCS80BA, MC90BA, MC100BA 
 
MCS 80 BA 
 % at 20 °C (motor);  
terminal; 4-1 / 4-2 / 4-3 
7.7 
Winding resistance ±5 % at 20 °C (brake); terminal 
5-6  1660 
 
MCS 90 BA 
 
 % at 20 °C (motor);  
; 4-1 / 4-2 / 4-3 
3.7 
Winding resistance ±5 % at 20 °C (brake); terminal 5-6 
 
MC 100 BA 
 
 % at 20 °C (motor);  
; 4-1 / 4-2 / 4-3 
3.7 
Winding resistance ±5 % at 20 °C (brake); terminal 5-6