Mitsubishi Electric Melsec-F FX3GC Series User Manual page 215

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
M53
Waiting for
1 scan time
M8029
"Execution completion" flag
M8340
Y000 Waiting for 1 scan time
Outputting
M8000
RUN monitor
M54
Waiting for
1 scan
time
M8029
"Execution completion" flag
M8340
Y000 Waiting for 1 scan time
Outputting
M8000
RUN monitor
*6. To stop the positioning operation, be sure to insert the stop contact before the positioning instruction
so that the STL instruction cannot be turned off (reset) until the "pulse output monitor" flag (M8340 (for
Y000)) is turned off.
*7. To prevent simultaneous activation of positioning instructions, the instruction activation timing should
be delayed by 1 scan time.
PLC User's Manual - Positioning Control Edition
*6
X030
FNC159
K500000
DDRVA
Stop
command
Designation
of absolute
position
M53
X030 *6
FNC159
K100
DDRVA
Stop
command
Designation
of absolute
position
M54
12.3 Programs for Forward/Reverse Rotation (Step Ladder (STL) Program)
STL S12
K100000 Y000 Y004
Output Pulse Rotation
pulse output direction
frequency destination signal
number
SET M12
RST S12
*7
M53
STL S13
K100000 Y000 Y004
Output Pulse Rotation
pulse output direction
frequency destination signal
number
SET M13
RST S13
*7
M54
RET
END
12 Examples of Programs
Positioning in forward rotation
direction
Moves to absolute position
500000 using the drive to
Absolute instruction.
(Y004=ON)
"Forward rotation positioning
completion" flag
Ends the positioning
operation in the forward
rotation direction.
(Self-reset)
Waiting for 1 scan time
Positioning in reverse rotation
direction
Moves to absolute position
100 using the drive to
Absolute instruction.
(Y004=OFF)
"Reverse rotation positioning
completion" flag
Ends the positioning
operation in the reverse
rotation direction.
(Self-reset)
Waiting for 1 scan time
B - 171
A
B
Apx.