Mitsubishi Electric MELSEC FX3U Programming Manual page 415

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
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.
SFC block
State number
1 Initial state for zero return
X025
Zero return start
10
RST
RST
Y002
X002
Upper limit
11
RST
Y004
X004
Left limit
12
SET
M8043
S 12 Reset
14 Handy Instruction – FNC 60 to FNC 69
TRAN
Y001
Unclamping
Y000
Moving-down reset
Moving up
TRAN
Y003
Rightward
travel reset
Leftward travel
TRAN
M8043
Zero return complete
Make sure to use the state relays
S10 to S19 for the zero return
TRAN
operation. In the final state, drive
M8043, and then reset the final
state.
14.1 FNC 60 – IST / Initial State
413
11
12
13
14
15
16
17
18
19
20