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PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
6 Mechanical Zero Return (DSZR/ZRN Instruction)
6.3 Zero Return (ZRN Instruction)
B - 102
6.3.3 Function and operation
→ For details on the maximum speed, bias speed, acceleration time and deceleration time, refer to
Subsection 4.2.5 to Subsection 4.2.8.
1) For , specify the zero return speed.
If the set zero return speed value is more than the maximum speed value, the operation will be performed
at the maximum speed.
Note that the zero return speeds shown in the following table will not apply.
2) For , specify the creep speed.
Setting range: 10 to 32,767 Hz
Setting range
16-bit operation 10 to 32,767(Hz)
32-bit operation
When a high-speed output special
adapter is used
10 to 200,000(Hz)
When a transistor output from the
main unit is used
10 to 100,000(Hz)
Pulse output destination device Zero return speed
= Y000
D8347,D8346
= Y001
D8357,D8356
= Y002
D8367,D8366
= Y003
D8377,D8376
Command
input
FNC156
ZRN
S
1
•
S
2
•
S
3
•
D
•
Maximum speed
Zero return speed
Deceleration
time
Bias speed
Acceleration
time
DOG
Creep speed
CLEAR signal
Front endRear end
1 ms or less
20 ms + 1 scan time (ms)
S
3
•
S
2
•
ON
"Instruction
execution
complete" flag
M8029
When the instruction is turned off, M8029 is turned off.
S
1
•
S
1
D
1
D
1
D
1
D
1
S
2