Programs For Forward/Reverse Rotation (Step Ladder (Stl) Program; Example Program - Mitsubishi Electric Melsec-F FX3GC Series User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
12.3

Programs for Forward/Reverse Rotation (Step Ladder (STL) Program)

12.3.1 Example Program

Positioning operation will be performed using the absolute positioning method as shown in the following chart:
The following program uses the step ladder (STL) instruction.
X020
Immediate stop
X014
Servo ready
X026
Forward rotation limit (NC contact)
X027
Reverse rotation limit (NC contact)
M8000
RUN monitor
M8000
RUN monitor
S0 S10 S11
Zero JOG JOG
return (+) (-)
*1. Change contacts in the program to NO contacts when using NO contact type limit switches.
B - 168
PLC User's Manual - Positioning Control Edition
For details on input/output assignment, refer to Section 12.1.
Output pulse frequency:
100
Origin
Acceleration/deceleration time:
*1
*1
S12 S13
Positioning Positioning in
in forward reverse
rotation rotation
direction direction
12.3 Programs for Forward/Reverse Rotation (Step Ladder (STL) Program)
500,000
100,000 Hz
100 ms
M8349
RST M10
RST M12
RST M13
M8343
M8344
FNC 12
H0020 D8464
MOVP
M8464
M8341
M8342
M8349
M5
Stoppage of Y0
pulse
outputting
operation
12 Examples of Programs
Stops outputting Y000 pulses.
(Immediate stop) Refer to
Section 4.7.2.
Resets the "zero return
completion" flag.
Resets the "forward rotation
positioning completion" flag.
Resets the "reverse rotation
positioning completion" flag.
Forward limit (Y000)
Reverse limit (Y000)
Enables the zero return
operation with CLEAR signal
outputting function. (CLEAR
signal: Y020)
Performs zero return in the
forward rotation direction.
Operation is stopped.