Fig. 5 Steer Command Map - Curtis 1220 Manual

ALLOWABLE
PARAMETER
-100.0 – 100.0 %
P1–P6 Input
Left Stop (deg)
P1–P3 Output (deg)
P4–P6 Output (deg)
Right Stop (deg)
Resulting Output
-100%
C
B
A
Fig. 5
Steer command map.
Curtis 1220 Manual,
Rev. C
A command map is used in the input command signal flow to compensate for
steering geometry differences between vehicles (steered wheel on the left side,
middle, or right side).
The command map menu contains 14 parameters defining an 8-point
map that modifies the steer command input. The first point (Left Stop (deg))
always defines the steer command input of -100% and the last point (Right
Stop deg)) always defines the steer command input of 100%.
COMMAND DEVICE: COMMAND MAP
RANGE
These six parameters individually define the steer command input
(in %) for the P1, P2, P3, P4, P5, and P6 Inputs.
-120.0° – 0.0° These eight parameters define the steer command output (in degrees)
of the steer command map.
-120.0° – 0.0°
0.0° – 120.0°
0.0° – 120.0°
120°
G
F
D E
100%
-120°
Although any map shape can be set up, it is recommended that the map al-
ways be set so that a Steer Command of zero % equals a Steer Command
(deg) of zero.
3 — PROGRAMMABLE PARAMETERS:
DESCRIPTION
Left Stop (deg)
P1 Output (deg)
P2 Output (deg)
P3 Output (deg)
P4 Output (deg)
P5 Output (deg)
P6 Output (deg)
Right Stop (deg)
The steer command map is shaped by points A – H.
H
A
B
C
D
Input
E
F
G
H
The map in this example is set up to provide a deadband
in the center (points D and E) and less sensitivity at the
ends (between A and B, and between G and H).
Command Map Parameters
X Y
-100% Left Stop (deg)
P1 input P1 Output (deg)
P2 input P2 Output (deg)
P3 input P3 Output (deg)
P4 input P4 Output (deg)
P5 input P5 Output (deg)
P6 input P6 Output (deg)
100% Right Stop (deg)
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