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5 DATA USED FOR POSITIONING CONTROL
An M code is a number between 0 and 65535 that can be assigned to each positioning
data (
The sequence program can be coded to read an M code from the buffer memory
address specified by "
X6, X7] turns ON so that a command for the sub work (e.g. clamping, drilling, tool
change) associated with the M code can be issued.
Item
Pr.19
Speed switching mode
Pr.20
Interpolation speed
designation method
Pr.21
Current feed value during
speed control
Pr.22
Input signal logic selection
Pr.23
Output signal logic selection
Pr.24
Manual pulse generator
input selection
Pr.150
Speed-position function
selection
Da.10
).
Md.25
Setting value, setting range
Value set with peripheral device
0 : Standard speed switching mode
1 : Front-loading speed switching
mode
0 : Composite speed
1 : Reference axis speed
0 : Do not update current feed value
1 : Update current feed value
2 : Clear current feed value to zero
b0 Lower limit
b1 Upper limit
Drive unit
b2
READY
b3 Stop signal
External
b4
command
0: Negative
logic
b5 Zero signal
1: Positive
Near-point
b6
logic
signal
b7 Not used
Manual pulse
b8
generator input
b9
to
Not used
b15
Command
b0
pulse signal
b1 Not used
b2 Not used
0: Negative
b3 Not used
logic
1: Positive
Deviation
b4
logic
counter clear
b5
to
Not used
b15
0: A-phase/B-phase multiplied by 4
1: A-phase/B-phase multiplied by 2
2: A-phase/B-phase multiplied by 1
3: PULSE/SIGN
0: Speed-position switching control
(INC mode)
2: Speed-position switching control
(ABS mode)
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Valid M code" whenever the M code ON signal [X4, X5,
Value set with sequence
program
0
1
0
1
0
1
2
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
b0
Always "0" is set to
the part not used.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
b0
Always "0" is set to
the part not used.
0
1
2
3
0
2
5 - 32
MELSEC-Q
Setting value buffer memory
address
Default
value
Axis 1 Axis 2 Axis 3 Axis 4
0
28
178
328
0
29
179
329
0
30
180
330
0
31
181
331
0
32
182
332
0
33
–
–
0
34
184
334
478
479
480
481
482
–
484
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