Mitsubishi Electric MELSEC-L LD75P User Manual page 330

(2) Restrictions
• Always limit the servomotor torque after the "[Pr.47] Creep speed" is reached. If the torque is not limited, the
servomotor may fail when the machine presses against the stopper. (For details, refer to Torque limit function
( Page 532, Section 12.4.2).)
• Use an external input signal as the zero signal.
(3) Precautions during operation
• Input a zero signal from an external source after the machine presses against the stopper. The workpiece
will continue decelerating and stop if a zero signal is input before deceleration to the "[Pr.47] Creep speed".
An error "OP detection timing fault (error code: 204)" will occur after the machine stops.
Machine OPR start
(Positioning start signal)
[Y10,Y11,Y12,Y13]
OPR request flag
Md.31
OPR complete flag
Md.31
Md.26
Md.34
Md.20
Md.21
328
V
ON
OFF
ON
OFF
Status : b3
OFF
Status : b4
Standby OPR
Axis operation status
Inconsistent 0
Movement amount
after near-point dog ON
Current feed value
Value the machine moved is stored
Inconsistent
Machine feed value
Pr.46 OPR speed
Zero signal
ON
OFF
Near-point dog
Error
Address at stop
Creep speed
Pr.47
Stopper
t