3 BASIC FUNCTION
3.14 Alarm function
127
3
■
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.
■
When network communication shut-off or communication time-out has occurred [G] [WG]
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).
*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 127 Stopping with dynamic brake
ON
OFF
ON
OFF
ON
OFF
0 r/min
Alarm occurrence
Braking with dynamic brake
Braking with dynamic brake
and electromagnetic brake
Servo motor speed
Base circuit
(Energy supply to
the servo motor)
Servo amplifier
display
No alarm
Alarm No.
Operation delay time of electromagnetic brake
(No alarm)
(Alarm)
MBR
(Electromagnetic
brake interlock)
ALM
(Malfunction)
ON
OFF
ON
OFF
ON
OFF
0 r/min
Network communication shut-off
Model speed command is 0,
and the speed is equal to or
less than zero speed
Servo motor speed
Base circuit
(Energy supply to
the servo motor)
Servo amplifier
display
No alarm
Communication error alarm No.
(No alarm)
(Alarm)
*1
MBR
(Electromagnetic
brake interlock)
ALM
(Malfunction)