3 BASIC FUNCTION
3.16 Alarm function
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3
■Stopping with dynamic brake
When connecting multiple MR-J5D_-G_ to one MR-CV, set [Pr. PC46.2 Protection coordination multiple
connections selection] to "1".
• When an alarm that is subject to the converter main circuit stop occurs
When an alarm is detected, MBR and CVST are turned off, and the servo motor is stopped using the dynamic brake and
electromagnetic brake.
When an alarm that is subject to the converter main circuit stop occurs in an MR-J5D_-_G_, the other MR-J5D_-_G_
connected with the protection coordination cable also stops the servo motor.
For the alarms that are subject to the converter main circuit stop, refer to "List of alarm No./warning No." in the following
manual.
MR-J5 User's Manual (Troubleshooting)
ON
OFF
ON
OFF
ON
OFF
0 r/min
ON
OFF
ON
OFF
ON
OFF
0 r/min
No alarm
No alarm
Alarm No.
Operation delay time of electromagnetic brake
(No alarm)
(Alarm)
No alarm
Operation delay time of electromagnetic brake
Braking with dynamic brake and
electromagnetic brake
First MR-J5D_-_G_
Base circuit
(Energy supply to the servo motor)
Display of the first MR-J5D_-_G_
MR-CV display
First MR-J5D_-_G_
Servo motor speed
Braking with dynamic brake
First MR-J5D_-_G_
MBR
(Electromagnetic brake interlock)
First MR-J5D_-_G_
CVST
(Converter stop)
Braking with dynamic brake and
electromagnetic brake
Second MR-J5D_-_G_
Base circuit
(Energy supply to the servo motor)
Display of the second MR-J5D_-_G_
Second MR-J5D_-_G_
Servo motor speed
Delay time until a protection coordination error is detected
Second MR-J5D_-_G_
MBR
(Electromagnetic brake interlock)
Second MR-J5D_-_G_
CVST
(Converter stop)
The alarm that occurred in the first MR-J5D_-_G_
allows for the protection coordination error to
be detected.
[AL. 01B Protection coordination error]
Alarm occurrence in the first MR-J5D_-_G_
CVST turns off upon detection of the alarm.
CVST turns off upon detection of the alarm.
Braking with dynamic brake upon detection of the
protection coordination error
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