Mitsubishi Electric Melservo MR-J3-A Instruction Manual page 445

14. ABSOLUTE POSITION DETECTION SYSTEM
(c) At the time of alarm reset
If an alarm has occurred, detect the trouble (ALM) and turn off the servo-on (SON). After removing the
alarm occurrence factor and deactivating the alarm, get the absolute position data again from the servo
amplifier in accordance with the procedure in (a) of this section.
Servo-on
(SON)
Reset
(RES)
Base circuit
Trouble
(ALM)
Ready
(RD)
Absolute position data
command transmission
Absolute position
data receive
Current position
Pulse train command
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
14 - 60
95ms
5ms
Current position change
ABS data
During this period, get absolute position data.