IAI America MSCON - Manual (Page 192)

3.8 Control and functions of Input and output signals of Remote I/O Mode
184
[3] Pitch feeding (relative movement = incremental feed)
„ Sample use
No.
Position
[mm]
Velocity
[mm/s]
Accele-
ration
[G]
Decele-
ration
[G]
Pressing
[%]
Thresh-
old
[%]
Positioning
width
[mm]
Zone+
[mm]
Zone-
[mm]
Acceleration/
Deceleration
mode
Incre-
mental
Gain
set
Stop
mode
0
1 100.00 250.00 0.20 0.20 0 0 0.10 0.00 0.00 0 0 0 0
2 25.00 250.00 0.20 0.20 0 0 0.10 0.00 0.00 0 1 0 0

(Position No.2 sets pitch feed.)
„ Control method
1) The method of controlling pitch feed is the same as that described in [1] Positioning except
the setting of the position table. Repeat the positioning of a specific position No.
2) For pitch feed, the position set in the position table indicates the pitch. Set the pitch (relative
moving distance = incremental moving distance) in column “Position”.
3) If the operation command is issued, the actuator moves from the current stop position by
“Position” in the position table. To perform continuous movement, repeat the operation. The
relative movement amount is calculated in “mm”. Therefore, there will be no cumulative
tolerable error in repeated operations.
Caution: In the pitch feed, do not perform a command with a pitch smaller than the
minimum encoder resolution (lead/encoder pulse number) or that less than
positioning accuracy repeatability.
There would be no deviation to occur even with the command because it is an
operation command to the same position as the positioning complete condition,
but the positioning control cannot be performed properly.
Stocker up/down
Work feed in
marking process
Stocker up/down, pallet movement, etc. Usage
100
Stop state
Position No.
2) 3) 4) 1)
Velocity
Time
Input of start
signal to
position 1
(positioning
mode)
Position 1
Completion of
movement
by 100 mm
Move 25 mm
by input of start
signal to
position 2
(pitch feed
mode)
Reat to
movement by
25 mm every
input of start
signal to
position 2
Position 1
Coordinate
Value:100
Position 2
Coordinate
Value:25
25 25 25 25
250mm/sec
2) 3)
4)
1)