Fig. 14: Effect Of Adjusting The Neutral Deadband Parameter - Curtis 1244 User Manual

3 — PROGRAMMABLE PARAMETERS:
Fig. 14 Effect of
adjusting the throttle
deadband parameter
(Throttle Types 1 and 2).
30
Throttle Parameters
ThRTL DEADBAND
The throttle deadband parameter defines the throttle pot wiper voltage range
the controller interprets as neutral. Increasing the throttle deadband setting
increases the neutral range. This parameter is especially useful with throttle
assemblies that do not reliably return to a well-defined neutral point, because
it allows the deadband to be defined wide enough to ensure that the controller
goes into neutral when the throttle mechanism is released.
Examples of deadband settings (30%, 10%, 0%) are shown in Figure 14
for throttle types 1 through 4, using a nominal 5kΩ–0 potentiometer. (For
throttle type 5, see the Curtis CAN Protocol Document.)
5kΩ–0 Throttle: Type 1
0
0.2V
(0Ω)
0.2V
(0Ω)
0.2V
(0Ω)
0–5V Single-Ended Throttle: Type 2
0
0.5V
0.2V
0–5kΩ Throttle: Type 3
0
1.2V
(1.4kΩ)
0.6V
(450Ω)
0.2V
(0Ω)
0–5V Wigwag Throttle: Type 4
2.3V
(3.2kΩ)
3.0V
(4.5kΩ)
3.3V
(5.0kΩ)
2.0V
3.3V
(5.0kΩ)
3.3V
(5.0kΩ)
3.3V
(5.0kΩ)
5V
30% Deadband
10% Deadband
0% Deadband
5V
30% Deadband
10% Deadband
0% Deadband
5V
30% Deadband
10% Deadband
0% Deadband
Curtis 1244 Manual,
Rev. E
5V