11 - 26
Chapter 11 Manual Control
Operations when stroke limit error occurs
When the hardware stroke limit error or the software stroke limit error is detected
(Note-1)
during operation, the operation will decelerate to a stop. However, in case
of "
Md.26
Axis operation status
", "Manual pulse generator operation" will continue
(Note-1)
. After stopping, manual pulse generator input pulses to the outside
direction of the limit range are not accepted, but operation can be executed within
the range.
(Note-1): Only when the current feed value or the machine feed value overflows or
underflows during deceleration, the manual pulse generator operation will
terminate as "error occurring". To carry out manual pulse generator operation
again, " Cd.21 Manual pulse generator enable flag" must be turned OFF once
and turn ON.
Upper/lower
limit signal
Manual pulse generator
operation possible
Manual pulse generator
operation not possible
V
Manual pulse
generator operation
ON
OFF
Manual pulse generator operation timing and processing time
The following drawing shows details of the manual pulse generator operation
timing and processing time.
[QD77MS4 operation example]
Manual pulse generator input
pulses
t1
t3
t4
BUSY signal [XC,XD,XE,XF]
Standby
Start complete signal
[X10, X11, X12, X13]
Positioning operation
The start complete signal does not turn ON in manual pulse generator operation.
0
0
1
Cd. 21 Manual pulse generator
enable flag
Md. 26 Axis operation status
Standby
Manual pulse generator operation
t2
(Note): Refer to Section 3.3 for input/output signal of QD77MS16.
Fig. 11.17 Manual pulse generator operation timing and processing times
Summary of Contents for MELSEC-Q QD77MS
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Page 232: ...5 111 Chapter 5 Data Used for Positioning Control MEMO...
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Page 337: ...6 22 Chapter 6 Sequence Program Used for Positioning Control...
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Page 433: ...8 20 Chapter 8 OPR Control MEMO...
Page 458: ...9 25 Chapter 9 Major Positioning Control MEMO...
Page 593: ...10 30 Chapter 10 High Level Positioning Control MEMO...
Page 625: ...11 32 Chapter 11 Manual Control MEMO...
Page 659: ...12 34 Chapter 12 Expansion Control MEMO...
Page 767: ...13 108 Chapter 13 Control Sub Functions MEMO...
Page 813: ...14 46 Chapter 14 Common Functions MEMO...
Page 831: ...15 18 Chapter 15 Dedicated Instructions MEMO...
Page 846: ...16 15 Chapter 16 Troubleshooting MEMO...
Page 892: ...16 61 Chapter 16 Troubleshooting MEMO...
Page 971: ...Appendix 62 Appendices MEMO...
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