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Curtis 1212 Manual
2 — INSTALLATION & WIRING: Throttle
value or lower than the programmed PotLow value, the controller will issue
an out-of-range throttle fault. In order for the controller to be able to detect
out-of-range throttle faults, the throttle must have a range within the limits
of 0.4–4.6 V.
Note: If a 0–5V throttle is used, it is the responsibility of the OEM to
provide appropriate throttle fault detection.
Speed Limit Pot
A speed limit pot allows the operator to adjust the speed of the vehicle at full
throttle. The speed limit pot should be sized so that it does not affect throttle in
-
put resistance and thus the throttle response; a 100k
Ω pot is recommended.
The speed limit pot is at its maximum speed setting when its wiper is
shorted to the throttle’s pot high connection (Pin 2). When the speed limit pot
is in its maximum speed position, the vehicle’s speed at full throttle corresponds
to the programmed maximum speed setting
.
The speed limit pot is at its minimum speed setting when its wiper is
shorted to the throttle’s pot low connection (Pin 8). When the speed limit pot
is in its minimum speed position, the vehicle’s speed at full throttle corresponds
to the programmed minimum speed setting. For information on the program
-
mable speed parameters, see Section 3.
The speed limit pot varies the vehicle’s speed linearly over the range be
-
tween the minimum and maximum speed settings in each mode, in forward
and in reverse.
If a speed limit pot is not used, the Speed Limit Pot parameter should
be programmed Off to disable the fault check at the speed limit pot
.
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