Mitsubishi Electric MELSEC FX Series - Page 75

Inverter Drive Control Learning to Use the FX Family for Positioning Control
FX Positioning Control Systems 4 - 33

The forward and reverse rotation limit switches must be wired so that they are turned ON by default (Nor-
mally closed contacts).
When either of these limit switches turns OFF (due to the workpiece going out-of-bounds), the inverter
operation will be stopped.
4230b0da.eps
Fig. 4-22: Program example (3)
M8002
M8029
X000
X000 X001
X001
X002
X002M15
M15
M15
M12SET
D81
D81
K2M20
K2M20
FNC 12
MOV
FNC228
LD<>
M21
M22
RST
SET
M8002
X002
X003
X003
X003
M11
SET
RST
K4000 D10
K1K0 H0ED
H0EDK0K11
D10
D10
FNC 12
MOVP
FNC271
IVDR
FNC180
EXTR
M11
M11










Initial Pulse
Driving of
write
instruction
Inverter
station
number
Inverter
instruction
code
Operation
speed
CH 1
40 Hz Operation
speed
Use this for FX
3G, FX3GC, FX3GE, FX3S or FX3U(C) PLCs
Function
number
(Control)
Inverter
station
number
Inverter
instruction
code
Operation
speed
Use this for FX
2N(C) PLCs
"Execution
completion" flag
Reverse
rotation
limit

Forward
rotation
limit

Forward
rotation
limit

Reverse
rotation
limit

Forward
rotation
command
input
Reverse rotation
command input
Operation
stop
Forward
rotation
command
input
Reverse
rotation
command
input
Reverse
rotation
command
input
Forward
rotation
command
input
Initial Pulse
Operation
command is
withdrawn
The write
instruction
is driven
Operation
command is
withdrawn