114
3 SIGNALS AND WIRING
3.7 Alarm occurrence timing chart
When the forced stop deceleration function is not enabled
When network communication is shut-off
The dynamic brake may operate depending on the communication shut-off status.
*1 The model speed command is a speed command generated in the servo amplifier for forced stop deceleration of the servo motor.
When you do not use the forced stop deceleration function
To disable the function, set "0 _ _ _" in [Pr. PA04].
The timing chart that shows the servo motor condition when an alarm or network communication shut-off occurs is the same
as the following section.
Page 114 When the forced stop deceleration function is not enabled
MBR
(Electromagnetic
brake interlock)
ON
OFF
ON (no alarm)
OFF (alarm)
Base circuit
(Energy supply to
the servo motor)
ON
OFF
Servo amplifier
display
0 r/min
Servo motor speed
ALM (Malfunction)
No alarm
Alarm No.
Braking by the dynamic brake
Dynamic brake
+ Braking by the electromagnetic brake
Operation delay time of the electromagnetic brake
Alarm occurrence
MBR
(Electromagnetic
brake interlock)
ON
OFF
ON (no alarm)
OFF (alarm)
Base circuit
(Energy supply to
the servo motor)
ON
OFF
Servo amplifier
display
0 r/min
Servo motor speed
ALM (Malfunction)
8D
No alarm (d1)
Network communication shut-off occurrence
Model speed command 0
and equal to or less than
zero speed
*1
Summary of Contents for MELSERVO-J4 series
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