12 - 43
MELSEC-Q
12 CONTROL SUB FUNCTIONS
(4) When the speed is changed by setting " Cd.14 New speed value" to "0",
the operation is carried out as follows.
When " Cd.15 Speed change request" is turned ON, the speed change
0 flag ( Md.31 Status: b10) turns ON.
(During interpolation control, the speed change 0 flag on the reference axis
side turns ON.)
The axis stops, but " Md.26 Axis operation status" does not change, and
the BUSY signal remains ON. (If a stop signal is input, the BUSY signal
will turn OFF, and " Md.26 Axis operation status" will change to
"Stopped".)
In this case, setting the " Cd.14 New speed value" to a value besides
"0" will turn OFF the speed change 0 flag ( Md.31 Status: b10), and
enable continued operation.
New speed value
Speed change
request
Positioning operation
1000
Speed change 0 flag
0
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Cd.14
Cd.15
Md.31
Positioning start
signal
[Y10,Y11,Y12,Y13]
BUSY signal
[XC,XD,XE,XF]
status: b10
Fig. 12.28 Speed change at new speed value "0"
(5) A warning "Deceleration/stop speed change" (warning code: 500) occurs
and the speed cannot be changed in the following cases.
During deceleration by a stop command
During automatic deceleration during positioning control
(6) A warning "Speed limit value over" (warning code: 501) occurs and the
speed is controlled at the " Pr.8 Speed limit value" when the value set in
" Cd.14 New speed value" exceeds the " Pr.8 Speed limit value".
(7) When the speed is changed during interpolation control, the required speed
is set in the reference axis.
(8) When carrying out consecutive speed changes, be sure there is an interval
between the speed changes of 100ms or more.
(If the interval between speed changes is short, the QD75 will not be able to
track, and it may become impossible to carry out commands correctly.)
(9) When a speed change is requested simultaneously for multiple axes,
change the speed one by one. Therefore, the start timing of speed change is
different for each axis.
(10) The speed cannot be changed to 0 during the machine OPR. The speed
change request is ignored.
(11) When deceleration is started by the speed change function, the deceleration
start flag does not turn ON.
Summary of Contents for D75D4
Page 2: ......
Page 22: ...A 20 MEMO ...
Page 24: ...MEMO ...
Page 41: ...1 17 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Page 48: ...1 24 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Page 58: ...2 10 MELSEC Q 2 SYSTEM CONFIGURATION MEMO ...
Page 65: ...3 7 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS ...
Page 139: ...5 35 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 238: ...5 134 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 251: ...6 13 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 254: ...6 16 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 255: ...6 17 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 256: ...6 18 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 259: ...6 21 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 260: ...6 22 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 292: ...7 8 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS ...
Page 294: ...7 10 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS ...
Page 298: ...MEMO ...
Page 462: ...9 140 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 490: ...10 28 MELSEC Q 10 HIGH LEVEL POSITIONING CONTROL MEMO ...
Page 524: ...11 34 MELSEC Q 11 MANUAL CONTROL Creating the program ...
Page 666: ...14 24 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 675: ...15 9 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 716: ...15 50 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 725: ...Appendix 9 MELSEC Q APPENDICES MEMO ...
Page 878: ...Appendix 162 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Page 879: ...Appendix 163 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Page 880: ...Appendix 164 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
Page 893: ...WARRANTY ...
Page 895: ......