8 - 19
Chapter 8 OPR Control
Operation timing and processing time of fast OPR
The following shows details about the operation timing and time during fast OPR.
[LD77MS4 operation example]
t1
t3
t2
Position control
Standby
Standby
Positioning operation
Md.26 Axis operation status
Positioning start signal
[Y10, Y11, Y12, Y13]
Start complete signal
[X10, X11, X12, X13]
BUSY signal
[XC, XD, XE, XF]
(Note): Refer to Section 3.3 for input/output signal of LD77MS16.
Fig. 8.15 Operation timing and processing time of fast OPR
Normal timing time
Unit: [ms]
Operation
cycle
t1
t2
t3
LD77MS2
0.88
0.2 to 0.3
1.8 to 2.7
0 to 0.9
1.77
0.2 to 0.3
2.5 to 4.2
0 to 1.8
LD77MS4
0.88
0.2 to 0.3
1.8 to 2.7
0 to 0.9
1.77
0.2 to 0.3
2.5 to 4.2
0 to 1.8
LD77MS16
0.88
0.3 to 1.4
2.8 to 3.5
0 to 0.9
1.77
0.3 to 1.4
3.8 to 5.2
0 to 1.8
The t1 timing time could be delayed by the operation state of other axes.
Operating restrictions
(1) The fast OPR can only be executed after the OP 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).
(2) 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.
(3) When unlimited length feed is executed by speed control and the machine feed
value overflows or underflows once, the fast OPR cannot be executed normally.
(4) The OPR complete flag (
Md.31
Status: b4
) is not turned ON.
(5) The axis operation status during fast OPR is "in position control".
Summary of Contents for MELSEC-L Series
Page 2: ......
Page 30: ...MEMO ...
Page 70: ...2 10 Chapter 2 System Configuration MEMO ...
Page 83: ...3 13 Chapter 3 Specifications and Functions MEMO ...
Page 103: ...3 33 Chapter 3 Specifications and Functions MEMO ...
Page 107: ...3 37 Chapter 3 Specifications and Functions MEMO ...
Page 111: ...3 41 Chapter 3 Specifications and Functions MEMO ...
Page 115: ...3 45 Chapter 3 Specifications and Functions MEMO ...
Page 140: ...4 22 Chapter 4 Installation Wiring and Maintenance of the Product MEMO ...
Page 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
Page 342: ...5 202 Chapter 5 Data Used for Positioning Control MEMO ...
Page 438: ...7 20 Chapter 7 Memory Configuration and Data Process MEMO ...
Page 440: ...MEMO ...
Page 485: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Page 594: ...9 134 Chapter 9 Major Positioning Control MEMO ...
Page 624: ...10 30 Chapter 10 High Level Positioning Control MEMO ...
Page 656: ...11 32 Chapter 11 Manual Control MEMO ...
Page 690: ...12 34 Chapter 12 Expansion Control MEMO ...
Page 798: ...13 108 Chapter 13 Control Sub Functions MEMO ...
Page 866: ...14 68 Chapter 14 Common Functions MEMO ...
Page 884: ...15 18 Chapter 15 Dedicated Instructions MEMO ...
Page 899: ...16 15 Chapter 16 Troubleshooting MEMO ...
Page 1036: ...Appendix 88 Appendices MEMO ...
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