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Mitsumi electronic MR-J3- A Manual De Usuario

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3 -  74 
3. SIGNALS AND WIRING 
 
3.11.3 Timing charts 
(1) Servo-on (SON) command (from controller) ON/OFF 
Tb [ms] after the servo-on (SON) signal is switched off, the servo lock is released and the servo motor 
coasts. If the electromagnetic brake is made valid in the servo lock status, the brake life may be shorter. 
Therefore, when using the electromagnetic brake in a vertical lift application or the like, set Tb to about the 
same as the electromagnetic brake operation delay time to prevent a drop. 
(95ms)
(95ms)
Electromagnetic 
brake interlock 
(MBR)
(Note 1) ON
              OFF
ON
OFF
0 r/min
Base circuit
Servo motor speed
Servo-on (SON)
ON
OFF
Coasting 
Tb
Electromagnetic 
brake operation 
delay time
Release
Activate
Position command
(Note 4)
Electromagnetic 
brake
Release delay time and external relay (Note 2)
(Note 3)
0 r/min
 
Note 1. ON: Electromagnetic brake is not activated. 
OFF: Electromagnetic brake is activated. 
2. Electromagnetic brake is released after delaying for the release delay time of electromagnetic brake and operation time of 
external circuit relay. For the release delay time of electromagnetic brake, refer to the Servo Motor Instruction Manual (Vol.2). 
3. Give a position command after the electromagnetic brake is released. 
4. For the position control mode. 
 
(2) Emergency stop (EMG) ON/OFF 
Servo motor speed 
Electromagnetic
brake interlock (MBR)
ON
OFF
Base circuit
(Note) ON
           OFF
Emergency stop (EMG)
(10ms)
(210ms)
(210ms)
Dynamic brake
Dynamic brake
Electromagnetic brake
Electromagnetic brake
Invalid (ON)
Valid    (OFF)
Electromagnetic brake
operation delay time
Electromagnetic brake release
 
Note. ON: Electromagnetic brake is not activated. 
OFF: Electromagnetic brake is activated.