FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
6 Mechanical Zero Return - DSZR/ZRN Instruction
6.2 DOG Search Zero Return (DSZR Instruction)
B - 109
A
Common Items
B
Built-in
Positioning
Functions
Apx.
Example
Connection
• In the following case, the "Instruction execution abnormal end" flag (M8329) will be turned on, and the
execution of the instruction will be completed.
For details on the "Instruction execution abnormal end" flag, refer to Subsection 4.7.4.
- If the DOG search function cannot detect the near-point signal (DOG), the speed will decelerate and the
operation will stop.
In this case, "Instruction execution abnormal end" flag (M8329) will be turned on, and the execution of
the instruction will be completed.
•FX
3S/FX3G/FX3GC PLCs operate in the sequence "CLEAR signal output Pulse output stop".
Set the CLEAR signal detection to "While on, droop pulses are always cleared" for connected amplifiers
(drivers).
The stop position may deviate if it is set to "Droop pulses are cleared on the leading edge".
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