Mitsubishi Electric MELSERVO MR-J5 Series User Manual page 448

Alarm cancellation
If an alarm occurs, detect ALM and turn off SON. After removing the cause of the alarm and deactivating the alarm, acquire
the absolute position data from the servo amplifier again with the following procedure.
Page 445 Sequence processing at power-on
SON (Servo-on)
RES (Reset)
Base circuit
ALM (Malfunction)
RD (Ready)
Absolute position data
command transmission
Absolute position data
reception
Current position
Pulse train command
During forced stop release
Releasing the forced stop turns on the base circuit after approximately 200 to 450 ms, then RD turns on 5 ms after the base
circuit turns on.
Acquire the current position before RD triggers the position command.
• When power is switched on in a forced stop status
Power supply
SON (Servo-on)
ON (Disabled)
EM2
(Forced stop 2)
OFF (Enabled)
Base circuit
RD (Ready)
Absolute position data
command transmission
Absolute position data reception
Current position
Pulse train command
7 ABSOLUTE POSITION DETECTION SYSTEM
446
7.4 Absolute position detection system via communication [A]
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
100 ms
5 ms
Absolute position
data
Acquire the absolute position data
within this period.
Approximately 200 to 450 ms
5 ms
Acquire the absolute position data
within this period.
Current position change
Current position change
Absolute position
data