Curtis 1226 User Manual

3 — PROGRAMMABLE PARAMETERS
pg. 35
Return to TOC Curtis Model 1226 – September 2019
e following list describes the parameters in this diagram.
• Deadband = 10%. e vehicle is in neutral until the throttle’s wiper voltage is 0.5 volts
(10% of 5.0V)
• Oset = 0%. A 0% value means there is no controller output when the throttle’s wiper
voltage rst exceeds 0.5 volts.
• Max = 90%. e controller output reaches 100% when the throttle is at 4.5V (90% of 5.0V)
• e points in the Map parameter lines represent the controller outputs for various
Map values when the throttle’s wiper voltage equals 2.5V (50% of 5.0V).
Note: You can use the rottle Pot Percent and Mapped rottle Percent elds to monitor the throttle
wiper voltage and the throttle request. See Analog Inputs Menu on page 61.
Max parameter
adjusts this endpoint.
80%
60%
50%
40%
30%
20%
MAP
THROTTLE INPUT VOLTAGE (volts)
CONTRO LLER OUTPUT (percent)
Map determines the “knee”
in the output; this knee is
at an 80% map setting.
Offset
parameter
raises this
endpoint.
Deadband parameter
adjusts this endpoint.
5.04.03.02.01.0 0
100
90
80
70
60
50
40
30
20
10
0
Figure 12
rottle Response Parameters
Understanding the Throttle Response Parameters
e Forward and Reverse Deadband, Max, and Map parameters set the controller output that is
generated at various throttle wiper voltages. e Forward and Reverse Oset parameters dene the
output generated by the controller when the throttle is rst rotated out of the neutral deadband. ese
parameters dene the throttle’s responsiveness.
Figure 12 shows the relationship between these parameters, the throttle’s wiper voltage, and the
controller output. e diagram is for a throttle with a 5.0V maximum voltage.

Curtis 1226 Specifications

General

Brand	Curtis
Model	1226
Category	Controller
Language	English