372
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
14 Handy Instruction – FNC 60 to FNC 69
14.1 FNC 60 – IST / Initial State
c) Zero return operation mode
Programming is not required when the zero return operation mode is not provided.
It is necessary to set M8043 (zero return complete) to ON before starting the automatic mode.
Unclamping
RST
Y000
RST
Y001
Zero return complete
Y002
Moving-down reset
Leftward travel
Rightward
travel reset
Moving up
Zero return start
RST
Y003
Y004
SET
M8043
S 12 Reset
Make sure to use the state relays
S10 to S19 for the zero return
operation. In the final state, drive
M8043, and then reset the final
state.
Initial state for zero return
SFC block
1
10
X025
TRAN
Upper limit
X002
TRAN
Left limit
X004
TRAN
M8043
TRAN
11
12
State number