Mitsubishi Electric MELSEC iQ-R Series User Manual page 447

[Pr.44] Home position return direction
Set the direction to start movement when starting machine home position return.
Setting value
0: Positive direction (address
increment direction)
1: Negative direction (address
decrement direction)
Normally, the home position is set near the lower limit or the upper limit, so "[Pr.44] Home position return direction" is set as
shown below.
Address decrement
direction
Address decrement
direction
■Buffer memory address
Refer to the following for the buffer memory address in this area.
Page 399 Home position return parameters: Home position return basic parameters
[Pr.45] Home position address
Set the address used as the reference point for positioning control (ABS system).
(When the machine home position return is completed, the stop position address is changed to the address set in "[Pr.45]
Home position address". At the same time, "[Pr.45] Home position address" is stored in "[Md.20] Feed current value" and
"[Md.21] Machine feed value".)
[Pr.1] setting value
0: mm
1: inch
2: degree
3: pulse
■Buffer memory address
Refer to the following for the buffer memory address in this area.
Page 399 Home position return parameters: Home position return basic parameters
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Details
Moves in the direction that the address increments. (Arrow 2))
Moves in the direction that the address decrements. (Arrow 1))
When the zero point is set at the lower
limit side, the home position return direction is
in the direction of arrow 1). Set "1" for [Pr.44].
Lower limit
Home position
Lower limit
(2)
When the home position is set at the upper
limit side, the home position return direction is
in the direction of arrow 2). Set "0" for [Pr.44].
Value set with the engineering tool (unit)
-214748364.8 to 214748364.7 (m)
-21474.83648 to 21474.83647 (inch)
0 to 359.99999 (degree)
-2147483648 to 2147483647 (pulse)
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Upper limit
(1)
Address increment
direction
Upper limit
Address increment
Home position
direction
Value set with a program (unit)
-2147483648 to 2147483647 (  10
-2147483648 to 2147483647 (  10
0 to 35999999 (  10
-2147483648 to 2147483647 (pulse)
12 DATA USED FOR POSITIONING CONTROL
-1
m)
-5
inch)
-5
degree)
445
12.3 Basic Setting
12