Chapter 3 operation, Sample use – IAI America SCON-CA User Manual
Page 118
Chapter 3 Operation
108
[3] Pitch Feeding (relative movement = incremental feed)
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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.)
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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.
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Velocity
1)
2)
3)
4)
4)
1)
2) 3)