Alarm Occurrence Timing Chart - Mitsubishi Electric MR-J4-10A(-RJ) Instruction Manual

3. SIGNALS AND WIRING

3.8 Alarm occurrence timing chart

CAUTION
To deactivate an alarm, cycle the control circuit power, push the "SET" button in the current alarm window,
or cycle the RES (Reset) However, the alarm cannot be deactivated unless its cause is removed.
3.8.1 When you use the forced stop deceleration function
(1) When the forced stop deceleration function is enabled
Servo motor
speed
Base circuit
(Energy supply to
the servo motor)
Servo amplifier
display
MBR
(Electromagnetic
brake interlock)
ALM (Malfunction)
Note 1. The model speed command is a speed command generated in the servo amplifier for forced stop
2. This is for when the electronic dynamic brake is enabled with [Pr. PF09] while a certain servo motor is
When an alarm has occurred, remove its cause, make sure that the operation
signal is not being inputted, ensure safety, and reset the alarm before restarting
operation.
POINT
In the torque control mode, the forced stop deceleration function is not available.
POINT
To enable the function, set "2 _ _ _ (initial value)" in [Pr. PA04].
Disable the forced stop deceleration function for a machine in which multiple
axes are connected together, such as a tandem structure. In this case, when an
alarm occurs, the servo motor will stop with the dynamic brake.
0 r/min
ON
OFF
ON
OFF
ON (no alarm)
OFF (alarm)
deceleration of the servo motor.
used. If the servo motor speed is 5 r/min or higher, the electronic dynamic brake will operate continuously
for the time period set in [Pr. PF15].
Alarm occurrence
Command is not received.
No alarm Alarm No.
3 - 59
(Note 1)
Model speed command 0
and equal to or less than
zero speed
(Note 2)