Timing Chart For Alarm Occurrence - Mitsubishi Electric MELSERVO-JET MR-JET User Manual

Timing chart for alarm occurrence

• In the torque mode and continuous operation to torque control mode, the forced stop deceleration function
cannot be used.
• When the servo motor is at a stop due to an alarm or other factors, commands from the controller are not
accepted. When restarting the operation in the cyclic synchronous position mode, confirm the position
command.
When using the forced stop deceleration function
• When [Pr. PA04.3 Forced stop deceleration function selection] is set to "2" (Forced stop deceleration
function enabled).
• For a machine in which multiple axes are connected to each other, such as a tandem configuration, set [Pr.
PA04.3] to "0" (Forced stop deceleration function disabled). If an alarm occurs with the forced stop
deceleration function disabled, the servo motor will stop with dynamic brake.
■Stopping with forced stop deceleration function
When an alarm is detected, the servo motor stops using forced stop deceleration and MBR and ALM are turned off.
Servo motor speed
Base circuit
(Energy supply to
the servo motor)
Servo amplifier
display
MBR
(Electromagnetic
brake interlock)
ALM
(Malfunction)
*1 The model speed command is a speed command generated in the servo amplifier for forced stop deceleration of the servo motor.
3 BASIC FUNCTION
112
3.9 Alarm function
Alarm occurrence
0 r/min
ON
OFF
No alarm
ON
OFF
ON (No alarm)
OFF (Alarm)
Commands from the controller are not accepted.
Alarm No.
Model speed command is 0,
and the speed is equal to or
*1
less than zero speed