Class1 119971 - Twister Electronic Throttle ANALOG - 120478 EXTERNAL - Manual (Page 9)

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TECHNICAL DATA SHEET
PAGE 8 OF 16
DATE 10/1/2010
PRODUCT GROUP THROTTLE CONTROL P/N 119971 REV 1.20
PRODUCT Twister Electronic Throttle (Analog version) BY AMS
Manual P/N 120478
4.4. Initial deadband clicks
The Twister requires a number tactile clicks of the control knob in the increase direction before it will allow engine
control. The default number of tactile clicks is five (5) but can be changed to one (1) or ten (10).
Initial deadband clicks required = 1:
Initial deadband clicks required = 5 (default):
Initial deadband clicks required = 10:
4.5. Load defaults
The Twister’s default configurations are:
Knob increase direction: Clockwise
Interlock polarity: Positive voltage
Maximum output signal voltage: 3.990 VDC
Idle output signal voltage: 0.235 VDC
Control knob initial dead band: 5 initial tactile clicks
4.6. Engine RPM range configuration
The Twister allows configuration of its idle output signal voltage and maximum output signal voltage which directly
affects the engine’s RPM range. The defaults are 0.235 volts at idle and 3.990 volts at maximum.
The idle offset voltage level affects the Twister’s maximum voltage level. When the idle offset voltage is configured to
its lowest level (0.235 volts) the maximum attainable voltage is 3.990 volts. When the idle offset voltage is configured
to its maximum level (2.392 volts) the maximum attainable voltage is 4.448 volts. The graph below (Figure 4) shows
the relationship between the configured idle offset voltage and its associated maximum voltage level.
Figure 4. Idle offset voltage versus maximum voltage.