Delta AS Series Programming Manual page 1266

Completion flag
Present output position
6. Select the zero return mode. The function code is set by the two high and low16-bit parameters. See the following
table for details.
High 16-bit
b31~b16
Number of pulses
for motion
7. The function code is set by the two high and low 16-bit parameters. See the following table for details.
Functions
Leaves the zero point in
the negative direction
and then stops
(Mode 0)
Leaves the zero point in
the positive direction and
then stops
(Mode 1)
Mode 0 Moves again
after returning to the zero
point
Leaves the zero point in
the positive direction and
then stops
(Mode 1)
Mode 1 outputs the
SM473 SM493
SR474 SR494
SR475 SR495
Select the zero return mode
b15~b6 b5
Setting NL signal
reserved 0: contact A
1: contact B
Code
High
Low 16-
bit
16-bit
0 0
0 1
Number of
pulses for 2
motion
8+0=8
0 8+1=9
(bit3=ON)
8+2=10
Number of
Cha p ter 6 App l ied Ins truc tio ns
SM513 SM533
SR514 SR534
SR515 SR535
Low 16-bit
b4
Setting DOG signal
0: contact A
1: contact B
Description
When the instruction is executed, the search for the
zero point is in the negative direction with the target
frequency. When the zero point is ON (the zero
point signal changes from OFF to ON), the
frequency is decreased to the JOG speed and the
motion in the negative direction continues, and
does not stop until the zero point signal changes
from ON to OFF.
When the instruction is executed, the search for
the zero point is in the negative direction with the
target frequency. When the zero point is ON (the
zero point signal changes from OFF to ON), the
frequency decreases to 0 immediately, and then
the motion is in the positive direction at the JOG
speed, and does not stop until the zero point
signal changes from ON to OFF.
Returning to the zero point is the same as that for
the low 16-bit code. After the zero point is ON, the
motion continues according to the number of
specified pulses. When the high 16-bit code is a
positive number, the search is in the positive
direction. A negative value means that the search
is in the negative direction.
Refer to mode 1. The operation for zero point
return is the same as that for code 1 (mode 1).
The operation for zero point return is the same as
SM553 SM573
SR554 SR574
SR555 SR575
b3~b0
Mode settig
0~2;
8~10
6 - 9 8 7
6_