Throttle - Sevcon Gen4 Applications Reference Manual

Throttle

General
The controller can use 2 or 3 wire throttle inputs of the following types:
 Linear potentiometer in the range 470  to 10 k

Voltage source in the range 0V to 10V: compliant with the standard 0..5 V, 0..10 V or 3.5..0
V ranges
To setup throttle inputs see 'Analogue' on page 6-14. The throttle voltage (2220
mapped to an analogue input.
CAUTION: Inputs with wire-off detection should be used for the throttle input to detect wiring
faults. This is especially important if a wire-off sets maximum throttle. See section Analogue
inputs (page 6-14) for more information. Configure throttle wire-off detection threshold at 2910
21.
Setup the characteristics of the throttle at 2910

Define the throttle voltage input: this is the relationship between the throttle voltage and the
throttle value. Separate relationships can be specified for forward and reverse. Each
relationship has two points, a start and an end. The points are configured differently for
standard and directional throttles as shown in Figure 24 and Figure 25 respectively.
Figure 24 Standard throttle configuration
Note: If the reverse characteristic is the same as the forward characteristic, just set all the
reverse throttle parameters to 0 in 2910
6-20
, sub-indices 2 to 21.
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.
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,
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