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3. SIGNALS AND WIRING
(3) Timing charts
(a) Servo-on (SON) command (from controller) ON/OFF
Tb (ms) after servo-on (SON) is switched off, 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.
For use in vertical lift and similar applications, therefore, set delay time (Tb) to the time which is
about equal to the electromagnetic brake operation delay time and during which the load will not
drop.
Servo motor speed
Electromagnetic
brake interlock(MBR)
ON
OFF
Base circuit
Invalid(ON)
Valid(OFF)
ON
OFF
Servo-on(SON)
Electromagnetic brake
operation delay time
Tb
Coasting
0 r/min
(80ms)
(80ms)
(b) Forced stop (EMG) ON/OFF
Servo motor speed
Electromagnetic
brake interlock (MBR)
ON
OFF
Base circuit
Invalid (ON)
Valid (OFF)
Forced stop (EMG)
(10ms)
(180ms)
(180ms)
Dynamic brake
Dynamic brake
Electromagnetic brake
Electromagnetic brake
Invalid (ON)
Valid (OFF)
Electromagnetic brake
operation delay time
Electromagnetic brake release
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Содержание MELSERVO MR-J2 C Series
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