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MELSEC-Q
6 PLC PROGRAM USED FOR POSITIONING CONTROL
[3] Order of priority for stop process
The order of priority for the QD75 stop process is as follows.
Deceleration stop < Sudden stop < Servo OFF
(1) If the deceleration stop command ON (stop signal ON) or deceleration stop
cause occurs during deceleration to speed 0 (including automatic
deceleration), operation changes depending on the setting of "
Cd.42
Stop
command processing for deceleration stop selection".
(a) Manual control
Independently of the
Cd.42
setting, a deceleration curve is re-processed
from the speed at stop cause occurrence.
(b) OPR control, positioning control
•
When
Cd.42
= 0 (deceleration curve re-processing):
A deceleration curve is re-processed from the speed at stop cause
occurrence.
•
When
Cd.42
= 1 (deceleration curve continuation):
The current deceleration curve is continued after stop cause occurrence.
(For details, refer to Section 12.7.10 "Stop command processing for
deceleration stop function".)
(2) If the stop signal designated for sudden stop turns ON or a stop cause occurs
during deceleration, the sudden stop process will start from that point.
However, if the sudden stop deceleration time is longer than the deceleration
time, the deceleration stop process will be continued even if a sudden stop
cause occurs during the deceleration stop process.
Positioning speed
Deceleration
stop process
Stop
Sudden
stop cause
Sudden stop deceleration process
Deceleration stop process continues
Process for sudden stop
Positioning speed
Deceleration
stop process
Stop
Sudden
stop cause
Example
The process when a sudden stop cause occurs during deceleration stop is shown below.
[4] Inputting the stop signal during deceleration
(1) Even if stop is input during deceleration (including automatic deceleration), the
operation will stop at that deceleration speed.
(2) If stop is input during deceleration for OPR, the operation will stop at that
deceleration speed. If input at the creep speed, the operation will stop
immediately.
(3) If a stop cause, designated for sudden stop, occurs during deceleration, the
sudden stop process will start from that point.
The sudden stop process during deceleration is carried out only when the
sudden stop time is shorter than the deceleration stop time.
Summary of Contents for MELSEC-Q QD75M
Page 1: ...MELSEC Q QD75M Positioning Module User s Manual Details QD75M1 QD75M2 QD75M4 ...
Page 17: ...MEMO ...
Page 64: ...3 11 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS MEMO ...
Page 91: ...4 16 MELSEC Q 4 INSTALLATION WIRING AND MAINTENANCE OF THE PRODUCT MEMO ...
Page 108: ...5 17 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 112: ...5 21 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 116: ...5 25 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 138: ...5 47 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 182: ...5 91 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 188: ...5 97 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 194: ...5 103 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 253: ...5 162 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 274: ...6 21 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 275: ...6 22 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 276: ...6 23 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 277: ...6 24 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 278: ...6 25 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 279: ...6 26 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
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Page 301: ...6 48 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
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Page 304: ...6 51 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 305: ...6 52 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 332: ...7 7 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
Page 336: ...7 11 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
Page 347: ...MEMO ...
Page 477: ...9 116 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 539: ...11 36 MELSEC Q 11 MANUAL CONTROL MEMO ...
Page 663: ...14 18 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 771: ...Appendix 2 MELSEC Q APPENDICES MEMO ...
Page 845: ...Appendix 76 MELSEC Q APPENDICES MEMO ...
Page 855: ...Index 10 X X0 QD75 READY 3 15 X1 Synchronization flag 3 15 Z Zero speed Pr 130 5 74 ...