Mitsubishi Electric MELSEC-L LD75D, Руководство пользователя

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CHAPTER 8 OPR CONTROL
8
8.
2 Mac
hine
O
P
R
(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.
• The OPR retry function cannot be used in "stopper stop method 3)".
(3) Precautions during operation
• 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.
• 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
Creep speed
OPR request flag
OPR complete flag
Valid torque limit range
Torque limit
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
OPR torque limit value
Current feed value
Md.34
Torque limit stored
value
Md.35
Md.20
Md.21
Pr.47
Md.31
Md.31
Md.26
Pr.55
Machine feed value
Stopper
Machine OPR start
(Positioning start signal)
[Y10,Y11,Y12,Y13]
Status : b3
Status : b4
Axis operation status
Deviation counter clear
signal output time