Timing Charts - Mitsubishi Electric Melservo-J3 Series MR-J3-B Instruction Manual

3. SIGNALS AND WIRING

3.11.2 Timing charts

(1) Servo-on command (from controller) ON/OFF
Tb [ms] after the servo-on 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 delay time (Tb) to about the same
as the electromagnetic brake operation delay time to prevent a drop.
Servo motor speed
Base circuit
Electromagnetic
brake interlock (MBR)
Servo-on command
(from controller)
(2) Forced stop command (from controller) or forced stop (EM1) ON/OFF
Servo motor speed
Base circuit
Electromagnetic
brake interlock (MBR)
Forced stop command
(from controller)
or
Forced stop (EM1)
0 r/min
(95ms)
ON
OFF
(95ms)
Invalid(ON)
Valid(OFF)
ON
OFF
Dynamic brake
(10ms)
ON
OFF
Invalid (ON)
Electromagnetic brake
operation delay time
Valid (OFF)
Invalid (ON)
Valid (OFF)
3 - 47
Coasting
Tb
Electromagnetic brake
operation delay time
Dynamic brake
Electromagnetic brake
Electromagnetic brake
Electromagnetic brake release
(210ms)
(210ms)