Mitsubishi Electric MELSERVO-JET MR-JET User Manual page 115

■Stopping with dynamic brake
When an alarm is detected, MRB and ALM are turned off, and the servo motor stops using the dynamic brake and
electromagnetic brake.
Servo motor speed
0 r/min
Base circuit
ON
(Energy supply to
OFF
the servo motor)
Servo amplifier
display
MBR
ON
(Electromagnetic
OFF
brake interlock)
ON
ALM
(Malfunction)
OFF
■When network communication shut-off or communication time-out has occurred
The dynamic brake may operate depending on the communication shut-off status.
Communication shut-off or communication time-out may not be detected, depending on the network. For details, refer to the
User's Manual (Communication Function).
Servo motor speed
0 r/min
Base circuit
ON
(Energy supply to
OFF
the servo motor)
Servo amplifier
display
MBR
ON
(Electromagnetic
OFF
brake interlock)
ON
ALM
(Malfunction)
OFF
*1 The model speed command is a speed command generated in the servo amplifier for forced stop deceleration of the servo motor.
When the forced stop deceleration function is not used
When [Pr. PA04.3 Forced stop deceleration function selection] is set to "0" (Forced stop deceleration function
disabled).
The operation status during an alarm occurrence or network communication shut-off is the same as in the stop method with
dynamic brake shown in this section.
Page 113 Stopping with dynamic brake
Alarm occurrence
No alarm
(No alarm)
(Alarm)
Network communication shut-off
No alarm Communication error alarm No.
(No alarm)
(Alarm)
Braking with dynamic brake
Braking with dynamic brake
and electromagnetic brake
Alarm No.
Operation delay time of electromagnetic brake
Model speed command is 0,
and the speed is equal to or
*1
less than zero speed
3 BASIC FUNCTION
3.9 Alarm function
3
113