Delta AS Series Programming Manual page 1176

(Mode 1)
Mode 1 outputs the
number of pulses after
returning to the zero point
Mode 1 Searches for Z
phase after returning to the
zero point
(Z phase input point is set
in HWCONFIG )
Mode 1 Outputs the clear
signal after returning to the
zero point
(Output clear point is set in
HWCONFIG )
DOG point is B point
5. The execution sequence is based on the value of the low 16-bit code in the table above, and described below.
The direction of DOG signal is determined by the value of bit 5.
 The DOG signal is determined by the value of bit 4.
 Mode 0 or mode 1 for the zero point return, selected according to the value of bit 3.
 The operation of the zero point return is performed according to the values of bit 1 and bit 0.
 The operation of the clear signal specified by bit 2 is performed.
6. Set the input point and the rising edge trigger condition in HWCONFIG, when the position control system needs
positive and negative limit input points. Note that the limit input points must not be the same as the zero point or Z
phase input points.
7. The Completion flag is set to ON after the instruction finishes performing the specified function. For example, for
function code 6, the PLC sets the Completion flag to ON only when the Z phase seeking completes.
8. After the DZRN instruction is executed, an interrupt service program is not executed till the DZRN instruction is
disabled, if the specified input point for the zero point is the same as that for the external input interrupt in the
program.
(bit
3=ON)
8+2=10
Number
of pulses
(bit
for motion
3=ON)
8+3=11
Number
of Z
(bit
phases
3=ON)
0 or
12–15
number of
(bit 3=bit
pulses or
2
number of
=ON)
Z phases
+16
(bit
4=ON)
Cha p ter 6 App l ied Ins truc tio ns
The operation for zero point return is the same
as that for low 16-bit code 1.
After returning to the zero point, the motion
continues in accordance with the number of
specified pulses. When the value of the high 16-
bit code is a positive number, the motion is in the
positive direction. A negative number indicates
that the motion is in the negative direction.
The operation for zero point return is the same
as that for low 16-bit code 1.
After returning to the zero point, the motion
continues in accordance with the number of Z
phases to seek. When the value of the high 16-
bit code is a positive number, the motion is in the
positive direction. A negative number indicates
that the motion is in the negative direction.
If the rising edge trigger for X0.1 is the condition
for Z phase input, counting is performed once
when the rising-edge trigger for X0.1 occurs.
After returning to the zero point in mode 1, the
20ms-width clear signal is output.
When in the low 16-bit code, bit 4 is ON, it
means the zero point is ON as the DOG point
changes from ON to OFF and the zero point is
left as the DOG point changes from OFF to ON.
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