Omron CJ1W-C113 - REV 02-2008, Operation Manual

Page: 202 / 406

175
Origin Return Section 6-7
Operating Data Area
6-6-4 Timing Chart
In the following timing chart, the X-axis present position for a 4-axis PCU is
changed to “0.” When the present position is changed to “0” it becomes the
origin, so the Origin Stop Flag is turned ON. There will be no change in the
status of the Positioning Completed Flag.
6-7 Origin Return
The origin return operation is used to return the axis to the origin from any
position. It is executed by the rising edge of the ORIGIN RETURN command.
Note Execute ORIGIN RETURN when the origin has been established. If the origin
has not been established, a present position unknown error (error code 5040)
will be generated.
6-7-1 Operating Memory Area Allocation and Operating Data Area
Settings
Operating Memory Area
Name Model Operating data area Bit Details
X
axis
Y
axis
Z
axis
U
axis
Position NC4 @ 3
NC2 @ 3
NC1 @ 3
I+8
I+9
I+8
I+9
I+8
I+9
I+20
I+21
I+20
I+21
I+32
I+33 I+44
I+45 00 to 15
(rightmost)
00 to 15
(leftmost)
15 00 Leftmost 15 00 Rightmost
Setting range: C0000001 to 3FFFFFFF Hex
(–1,073,741,823 to
1,073,741,823)
Value to be
changed to
(I+8, I+9)
PRESENT POSITION
PRESET
(word n, bit 08)
Origin Stop Flag
(word n+8, bit 07)
No Origin Flag
(word n+8, bit 06)
Busy Flag
(word n+8, bit 13)
1 scan min.
Name Model Operating memory area Bit Details
X axis Y axis Z axis U axis
ORIGIN RETURN NC4
@
3
NC2 @ 3
NC1
@
3
n
n
n
n+2
n+2
n+4 n+6 07
Origin Stop Flag NC4
@
3
NC2 @ 3
NC1
@
3
n+8
n+4
n+2
n+11
n+7
n+14 n+17 07 1: Stopping at origin; 0: Other
Busy Flag 13 1: Busy
: Start of origin return