Mitsubishi Electric MR-J4W2-0303B6 Instruction Manual page 59

3. SIGNALS AND WIRING
(2) Timing chart
When EM2 (Forced stop 2) turns off, the motor will decelerate according to [Pr. PC24 Forced stop
deceleration time constant]. Once the motor speed is below [Pr. PC07 Zero speed], base power is cut
and the dynamic brake activates. For MR-J4W_-B servo amplifiers, forced stop deceleration operates for
all axes.
Note. To decelerate all axes of A, B, and C, set the same value to [Pr. PC24] for all axes.
EM2 (Forced stop 2)
Rated speed
Servo motor
speed
A-axis
Base circuit
(Energy supply to
the servo motor)
MBR-A
(Electromagnetic
brake interlock A)
Rated speed
Servo motor
speed
B-axis
or
C-axis
Base circuit
(Energy supply to
the servo motor)
MBR-B or MBR-C
ON
OFF (Enabled)
Ordinary
operation
0 r/min
[Pr. PC24] (A-axis) (Note)
ON
OFF
ON
OFF (Enabled)
Ordinary
operation
0 r/min
[Pr. PC24] (B-axis) (Note)
ON
OFF
ON
OFF (Enabled)
3 - 20
Dynamic brake
Forced stop
deceleration Electromagnetic brake
Command
Zero speed
([Pr. PC07])
Deceleration time
Dynamic brake
Forced stop
Electromagnetic brake
deceleration
Command
Zero speed
([Pr. PC07])
Deceleration time
+
+