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MELSEC-
A
5 DATA USED FOR POSITIONING CONTROL
Item
Setting value, setting range
Default
value
Setting value buffer
memory address
Value set with peripheral device
Value set with sequence
program
Axis 1 Axis 2
Pr.46
Zero point return
direction
0 : Positive direction (address
increment direction)
0
0 71 221
1 : Negative direction (address
decrement direction)
1
Pr.47
Zero point address
The setting value range differs depending on the "
Pr.11
Stepping motor mode selection" or "
Pr.1
Unit setting".
Here, the value within the [Table 1] range is set.
[Table 1] on right page
0
72
73
222
223
Pr.48
Zero point return
speed
The setting value range differs depending on the "
Pr.11
Stepping motor mode selection" or "
Pr.1
Unit setting".
Here, the value within the [Table 2] range is set.
[Table 2] on right page
1
74
75
224
225
Pr.46
Zero point return direction
Set the direction to start movement when starting machine zero point return.
0: Positive direction (address increment direction)
Moves in the direction that the address increments. (Arrow 2))
1: Negative direction (address decrement direction)
Moves in the direction that the address decrements. (Arrow 1))
Normally, the zero point is set near the lower limit or the upper limit, so "
Pr.46
Zero point return direction" is set as shown below.
Address decrement
direction
Lower limit
Zero point
Upper limit
Address increment
direction
1)
2)
Address decrement
direction
Lower limit
Zero point
Upper limit
Address increment
direction
When the zero point is set at the upper
limit side, the zero point return direction
is in the direction of arrow 2).
Set "0" for .
Pr.46
When the zero point is set at the lower
limit side, the zero point return direction
is in the direction of arrow 1).
Set "1" for .
Pr.46