List Of Functions - Mitsubishi Electric Melsec-F FX3GC Series User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
2.6

List of Functions

The instructions needed for the FX
the following table:
Positioning instruction
Mechanical zero return
zero return
DSZR with DOG
instruction search
function
ZRN
zero return
instruction
Absolute position detection system
Absolute
value detec-
ABS tion system
instruction (Reading of
current ABS
value)
1-speed positioning
DRVI Relative
instruction positioning
DRVA Absolute
instruction positioning
1-speed positioning with interruption
DVIT
Interruption
instruction
positioning
*1
Variable speed operation
Variable
positioning
PLSV
(Variable
instruction
Speed Pulse
Output)
Others
Positioning
TBL
using batch
instruction
setting
*3
method
B - 40
PLC User's Manual - Positioning Control Edition
/FX /FX
3S 3G
Operation
Creep
speed
Zero-point: ON DOG:ON
(Dog: OFF when ZRN
instruction is used)
Reads out the
current value.
Operation speed
Transfer distance
Start
Operation speed
Transfer
distance
Start
Interrupt
input: ON
Operation without
Acceleration/Deceleration
Operation speed
Start Speed Speed
change change
Operation with
Acceleration/Deceleration*
Operation speed
Start Speed Speed
change
change
No. Position Speed Instruction
1
1000 2000
2 20000 5000
3 50 1000
4 800 10000
/FX /FX PLC built-in positioning functions are shown in
3GC 3U 3UC
If the DSZR/ZRN instruction turns ON,
mechanical zero return will be started at
Zero return
the specified zero return speed. If the dog
speed
sensor is turned on, the speed will be
reduced to the creep speed. If the zero-
phase signal is input, the operation will be
stopped, and the zero return will be
Start
completed.
(If the ZRN instruction is used, the dog
sensor will be turned off to stop the
operation.)
If the ABS instruction turns ON, the
current motor address will be read out
from the servo amplifier.
If the DRVI/DRVA instruction turns ON,
the operation will be started at the
operation speed. When the workpiece
reaches the target position, the operation
Target position will be stopped.
If the DVIT instruction turns ON, the
operation will be started at the operation
speed. If the interrupt input turns ON, the
workpiece will go the specified transfer
distance, before decelerating to stop.
If the PLSV instruction turns ON,
operation will be started at the specified
speed. With an operation speed change,
the speed changes to the specified speed,
Instruction:
OFF
and operation continues.
At PLSV instruction OFF, the pulse output
2
stops.
With acceleration/deceleration operation,
the PLC controls acceleration and
deceleration.
Instruction:
OFF
Preliminarily set the positioning points
DRVI
using parameters. If the TBL instruction
DRVA
turns ON, the workpiece will be
DVIT
transferred to the specified point.
DRVA
2 Specifications
2.6 List of Functions
Description Refer to
Chapter
6.
Chapter
7.
Chapter
8.
Chapter
9.
Chapter
10.
Chapter
11.