Mitsubishi Electric MELSEC-L LD75D, User Manual

Page: 340 / 818

338
(2) Operation timing and processing time of fast OPR
The following shows details about the operation timing and time during fast OPR.
Normal timing time
• The t1 timing time could be delayed by the operation state of other axes.
(3) Precautions during operation
• The fast OPR can only be executed after the OP position is established by executing the Machine OPR. If
not, the error "OPR request ON" (error code: 207) will occur. (OPR request flag ([Md.31] Status: b3) must be
turned OFF.)
• If the fraction pulse is cleared to zero using current value changing or fixed-feed control, execute the fast
OPR and an error will occur by a cleared amount.
• When unlimited length feed is executed by speed control and the current machine feed value overflows or
underflows once, the fast OPR cannot be executed normally.
• The OPR complete flag ([Md.31] Status: b4) is not turned ON.
• The axis operation status during fast OPR is "Position control".
t1 t2 t3
0.2 to 1.1ms 0.4 to 1.3ms 0 to 0.9ms
t1
t3
t2
Position control Standby Standby
Positioning start signal
BUSY signal [XC,XD,XE,XF]
Start complete signal
Output pulse to external source
(PULSE)
Positioning operation
Md.26 Axis operation status
[Y10,Y11,Y12,Y13]
[X10,X11,X12,X13]