Appendix - 107
MELSEC-Q
APPENDICES
Appendix 10.10 External I/O signal logic switching function
This function switches the signal logic according to the external equipment connected
to the QD75.
For the system in which drive unit READY with b-contact, upper limit switch, and lower
limit switch are not used, the parameter logic setting can be controlled without wiring if
it is changed to a "positive logic".
When the drive unit READY, upper limit switch, and lower limit switch are used, ensure
to use them with b-contact.
The details shown below explain about the "external I/O signal logic switching
function".
[1] Parameter setting details
[2] Precautions on parameter setting
[1] Parameter setting details
To use the "external I/O signal logic switching function", set the parameters
shown in the following table.
Buffer memory address
Setting item
Setting details
Factory-set
initial value Axis 1 Axis 2 Axis 3 Axis 4
• Selection of logic of signals input from external source to
QD75
b0
Lower
limit
b1
Upper
limit
b2
Drive unit
READY
b3
Stop
signal
b4
External
command signal
b5
Zero
signal
b6
Near-point dog
signal
0: Negative logic,
1: Positive logic
b7
Unused
Set
"0".
b8
Manual pulse
generator input
0: Negative logic,
1: Positive logic
Pr.22
Input signal logic
selection
b9 to b15
Unused
Set "0".
0 31
181
331
481
• Selection of logic of signals output from QD75 to external
source
b0
Command pulse
signal
0: Negative logic,
1: Positive logic
b1 to b3
Unused
Set "0".
b4
Deviation counter
clear signal
0: Negative logic,
1: Positive logic
Pr.23
Output signal logic
selection
b5 to b15
Unused
Set "0".
0 32
182
332
482
Refer to Section 5.2 "List of parameters" for the information on detail settings.
[2] Precautions on parameter setting
(1) The external I/O signal logic switching parameters are validated when the
PLC READY signal [Y0] is turned OFF to ON. (The logic is negative right
after power-on.)
(2) If each signal logic is set erroneously, the operation may not be carried out
correctly.
Before setting, check the specifications of the equipment to be used.
Содержание Melsec-Q QD75D1
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Страница 693: ...Appendix 7 MELSEC Q APPENDICES Axis address mm inch degree pulse Axis address mm inch degree pulse ...
Страница 699: ...Appendix 13 MELSEC Q APPENDICES Initial value Axis 1 Axis 2 Axis 3 Axis 4 Remarks 0 0 0 1 1 0 0 0 0 0 0 300 11 0 0 ...
Страница 836: ...Appendix 150 MELSEC Q APPENDICES Appendix 14 External dimension drawing 1 QD75P1N Unit mm 23 4 27 4 98 90 46 ...
Страница 837: ...Appendix 151 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 838: ...Appendix 152 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 839: ...Appendix 153 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Страница 840: ...Appendix 154 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Страница 841: ...Appendix 155 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
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