12 - 13
MELSEC-Q
12 CONTROL SUB FUNCTIONS
[2] Control Precautions
(1) The feed pulses of the backlash compensation amount are not added to the
" Md.20 Current feed value" or " Md.21 Machine feed value".
(2) Always carry out a machine OPR before starting the control when using the
backlash compensation function (when " Pr.11 Backlash compensation
amount" is set). The backlash in the mechanical system cannot be correctly
compensated if a machine OPR is not carried out.
(3) Set the No. of pulses output in one backlash compensation (value in which
the " Pr.11 Backlash compensation amount" is divided by the "movement
amount per pulse") to a value of 255 or lower. An error "Backlash
compensation amount error" (error code: 920) will occur if a value over 255
is set. (Depending on the connected servo, tracking may not be possible if a
large amount of pulses is output at once.)
0
Backlash compensation amount
255
Movement amount per pulse
(Omit values after the decimal point.)
(4) Backlash compensation, which includes the movement amount and
" Pr.11 Backlash compensation amount", is output the moment at the
moving direction changes.
(5) Backlash compensation cannot be made when the stepping motor is used.
The backlash compensation function cannot be used for an axis where a
stepping motor is connected. Set 0 (initial value) in " Pr.11 Backlash
compensation amount".
[3] Setting method
To use the "backlash compensation function", set the "backlash compensation
amount" in the parameter shown in the following table, and write it to the QD75.
The set details are validated at the rising edge (OFF
ON) of the PLC READY
signal (Y0).
Setting item
Setting
value
Setting details
Factory-set
initial value
Pr.11
Backlash
compensation
amount
Set the backlash compensation amount.
0
Refer to Section 5.2 "List of parameters" for setting details.
REMARK
Parameters are set for each axis.
It is recommended that the parameters be set whenever possible with GX
Configurator-QP. Execution by sequence program uses many sequence programs
and devices. The execution becomes complicated, and the scan times will
increase.
Содержание D75D4
Страница 2: ......
Страница 22: ...A 20 MEMO ...
Страница 24: ...MEMO ...
Страница 41: ...1 17 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Страница 48: ...1 24 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Страница 58: ...2 10 MELSEC Q 2 SYSTEM CONFIGURATION MEMO ...
Страница 65: ...3 7 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS ...
Страница 139: ...5 35 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 238: ...5 134 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 251: ...6 13 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Страница 254: ...6 16 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Страница 255: ...6 17 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Страница 256: ...6 18 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Страница 259: ...6 21 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Страница 260: ...6 22 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Страница 292: ...7 8 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS ...
Страница 294: ...7 10 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS ...
Страница 298: ...MEMO ...
Страница 462: ...9 140 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Страница 490: ...10 28 MELSEC Q 10 HIGH LEVEL POSITIONING CONTROL MEMO ...
Страница 524: ...11 34 MELSEC Q 11 MANUAL CONTROL Creating the program ...
Страница 666: ...14 24 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Страница 675: ...15 9 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Страница 716: ...15 50 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Страница 724: ...Appendix 8 MELSEC Q APPENDICES Axis address mm inch degree pulse Axis address mm inch degree pulse ...
Страница 725: ...Appendix 9 MELSEC Q APPENDICES MEMO ...
Страница 731: ...Appendix 15 MELSEC Q APPENDICES Initial value Axis 1 Axis 2 Axis 3 Axis 4 Remarks 0 0 0 0 1 1 0 0 0 0 0 0 300 11 0 0 ...
Страница 875: ...Appendix 159 MELSEC Q APPENDICES Appendix 14 External dimension drawing 1 QD75P1N Unit mm 23 4 27 4 98 90 46 ...
Страница 876: ...Appendix 160 MELSEC Q APPENDICES 2 QD75P2N Unit mm 23 27 4 90 4 98 46 3 QD75P4N 23 27 4 90 4 98 46 Unit mm ...
Страница 877: ...Appendix 161 MELSEC Q APPENDICES 4 QD75D1N 12 90 23 27 4 Unit mm 98 4 46 5 QD75D2N 90 23 27 4 12 98 4 46 Unit mm ...
Страница 878: ...Appendix 162 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Страница 879: ...Appendix 163 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Страница 880: ...Appendix 164 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
Страница 893: ...WARRANTY ...
Страница 895: ......