Delta AS Series Programming Manual page 1180

Completion flag
Clear signal
DOG signal
Target frequency
JOG frequency
Function code 0+ the negative limit function enabling:
You set the negative limit input point in HWCONFIG, and then download the setting to the PLC. The PLC
automatically calculates the negative limit function when the instruction is executed.
 DZRN function is executed and the search for the zero point is in the negative direction with the target
frequency.
 After the negative limit switch is ON, the motion stops and then goes in the positive direction after reversing
direction.
 The motion continues in the positive direction after leaving the negative limit switch.
 The output frequency ramps down after receiving the DOG signal. The reverse output is performed with the
JOG frequency after reversing direction.
 The output stops when the signal changes from ON to OFF after the axis moves away from the DOG signal.
Completion flag
DOG signal
Negative limit switch
Target frequency
JOG frequency
Negative direction
Frequency
1
Negative direction
ON
Frequency
1 2
Cha p ter 6 App l ied Ins truc tio ns
ON
ON
ON
2 3
Positive Negative
direction direction
ON
3 4 5
Time
6_
Time
6 - 9 0 1