Mitsubishi Electric MELSEC-L LD75D, User Manual

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CHAPTER 8 OPR CONTROL
8
8.
2 Mac
hine
O
P
R
• If the zero signal is input before the workpiece stops at the stopper, the workpiece will stop at that position,
and that position will become the OP. At this time, an error will not occur.
• The near-point dog must be turned ON until it presses against the stopper. If any range that the near-point is
turned OFF exists until it presses against the stopper, executing the machine OPR from the area leads it to
be pressed against the stopper at ORR speed.
• Machine OPR started while the near-point dog is ON will start at the "[Pr.47] Creep speed".
• When a machine OPR is stopped with the stop signal, perform a machine OPR again. If the restart
command is turned ON after a stop with the stop signal, an error "OPR restart not possible" (error code: 209)
occurs.
t
ON
OFF
ON
OFF
OFF
ON
V
ON
OFF
t
V
OPR speed
Creep speed
Valid torque
limit range
Torque limit
Near-point dog
Zero signal
Deviation counter clear output
Standing by In OPR Standing by
Inconsistent
0
Movement amount
after near-point dog
ON
Inconsistent
Value the machine moved is stored OP address
Inconsistent
Torque limit setting value
OPR torque limit value
Current feed value
OPR request flag
OPR complete flag
Md.31
Md.31
Md.26
Pr.55
Md.34
Torque limit stored
value
Md.35
Md.20
Md.21
Pr.46
Pr.47
Stopper
Machine feed value
Machine OPR start
(Positioning start signal)
[Y10,Y11,Y12,Y13]
Status : b3
Status : b4
Axis operation status
Deviation counter clear
signal output time