Mitsubishi Electric MELSERVO-J4 MR-J4 A Series Instruction Manual page 87

3. SIGNALS AND WIRING
(2) Timing chart
When EM2 (Forced stop 2) turns off, the motor will decelerate according to [Pr. PC51 Forced stop
deceleration time constant]. Once the motor speed is below [Pr. PC17 Zero speed], base power is cut
and the dynamic brake activates.
POINT
When LSP/LSN is turned on during a forced stop deceleration, the motor will
stop depending on the setting of [Pr. PD30] as follows.
[Pr.
Stop system
PD30]
_ _ _ 0 Switching to sudden stop
_ _ _ 1 Continuing forced stop deceleration
EM2 (Forced stop 2)
EM2( 2)
Rated Speed
Servo motor speed
Base circuit
(Energy supply to
(
the servo motor) )
MBR
MBR(
)
(Electromagnetic
brake interlock)
ON
OFF (Enabled)
OFF( )
Ordinary
operation
Command
0 r/min 0r/min
Deceleration time
ON
OFF
ON
OFF (Enabled) OFF( )
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Dynamic brake
Forced stop
Electromagnetic brake
deceleration
Zero speed
([Pr. PC17])
[Pr.PC51]
+
+
([Pr.PC17])