Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 126

■Main circuit power supply off with control circuit power supply on
In the torque mode, the forced stop deceleration function is not available.
Servo motor speed
Main circuit
power supply
Base circuit
(Energy supply to
the servo motor)
MBR
(Electromagnetic
brake interlock)
ALM (Malfunction)
*1 ON: Electromagnetic brake is not activated.
OFF: Electromagnetic brake is activated.
*2 Variable according to the operation status.
■Ready-off command from controller
Servo motor speed
Base circuit
MBR
(Electromagnetic
brake interlock)
Ready-on command
(from controller)
*1 ON: Electromagnetic brake is not activated.
OFF: Electromagnetic brake is activated.
3 SIGNALS AND WIRING
124
3.9 Servo motor with an electromagnetic brake
Forced stop deceleration
The time until a voltage
drop is detected.
0 r/min
ON
OFF *2
ON
OFF
ON
*1
OFF
ON
(no alarm)
OFF
(alarm)
Approx. 10 ms
0 r/min
ON
OFF
ON
*1
OFF
ON
OFF
Dynamic brake
Dynamic brake
+ Electromagnetic brake
Electromagnetic brake
Approx. 10 ms
Operation delay time of
the electromagnetic brake
Dynamic brake
Dynamic brake
+ Electromagnetic brake
Electromagnetic brake
Operation delay time of
the electromagnetic brake