Mitsubishi Electric MELSERVO-J3W Series, Instruction Manual

Page: 427 / 500

15. MR-J3W-0303BN6 SERVO AMPLIFIER
15 - 22
(b) When a corresponding axis stop alarm occurred
Power ON
No alarm
Base circuit
ON
Base circuit
ON (EDB)
Occurrence of
each axis alarm
Brake operation
No alarm
Reset operation
Base circuit
ON
Base circuit
ON (EDB)
Reset operation
Occurrence of
all axis stop alarm
Brake operation
The brake operates during the time set in Pr. PF12.
Power ON
No alarm
Base circuit
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Servo-on
command
Servo-on
command
No alarm
Base circuit
ON
Base circuit
ON (EDB)
Base circuit
ON
Base circuit
ON (EDB)
Brake operation
Occurrence of
each axis alarm
No alarm
Occurrence of
all axis stop alarm
Brake operation
No alarm
Base circuit
ON
Servo-on
command
Servo-on
command
Main circuit
Control circuit
power
A-axis
Base circuit
Dynamic brake
Servo-on command
(from controller)
Alarm
Reset command
B-axis
Base circuit
Dynamic brake
Servo-on command
(from controller)
Alarm
Reset command
Power on
1.5s
Fault cause
removed
50ms or
more 60ms (Note 1)
Main circuit power
supply on
Fault cause
removedAlarm reset
Main circuit power
supply shut-off
(Note 2)
Alarm reset
50ms or
more
Occurrence of
each axis alarm
Occurrence of
all Power shutoff
Power on axis stop alarm
Note 1. It is different according to the operation status.
2. The dynamic brake does not operate while the control circuit power supply is cut.
(2) Supplementary explanation
(a) Overcurrent/Overload 1/Overload 2
Driving the servo motor by cycling the control circuit power repeatedly to restart without removing the
cause of an occurring alarm of Overcurrent (32. )/Overload 1 (50. )/Overload 2 (51. ) will raise
temperature. Doing so may result in a malfunction of the servo amplifier or servo motor. Remove its
cause and allow about 30 minutes for cooling before resuming the operation.
(b) Regenerative error
Driving the servo motor by cycling the control circuit power repeatedly to restart without removing the
cause of an occurring Regenerative error (30. ) will raise the temperature of regenerative resistor.
Doing so may result in a malfunction of the servo amplifier or servo motor.
(c) Instantaneous power failure
Undervoltage (10. ) occurs on the following conditions.
A power failure occurred for 15 ms at the control circuit power supply and recovered.
Bus voltage dropped to 24VDC, 15VDC/48VDC, 35VDC on the servo-on status.