Throttle Autocalibration; Throttle Deadband - Curtis MultiMode 1228 Manual

Curtis 1228 Manual,
Rev. F
THRTL AUTOCAL
The throttle autocalibration parameter provides a means of easily and reliably
centering wigwag throttle pots. To use this method, a horn must be connected
to the horn driver. The controller inhibits driving while in autocalibration
mode, enabling the throttle potentiometer to be adjusted safely.
Throttle centering is accomplished as follows:
1. Jack the vehicle drive wheels off the ground or disconnect the motor
leads.
2. Completely assemble the throttle mechanism but do not tighten
the clamping mechanism that secures the potentiometer shaft to
the throttle lever.
3. Plug the programmer into the controller, and turn on the key-
switch.
4. Select the Parameters Menu and scroll down to the throttle auto-
calibration parameter.
5. Set the throttle autocalibration to On. At this point, the horn will
probably sound, indicating that the throttle pot is out of adjust-
ment. If the horn does not sound, the pot is already centered and
further adjustment is not necessary.
6. With the throttle lever at the neutral position, adjust the potenti-
ometer in one direction until the horn turns off. Note this position.
Adjust the pot in the other direction until the horn turns off. Note
this position. Set the pot halfway between the two noted positions.
The pot is now adjusted to the proper value for neutral.
7. Tighten the clamping mechanism that secures the throttle lever to
the potentiometer shaft. Depress and release the throttle to verify
the mechanical return to neutral; the horn should turn off with the
same amount of motion in both directions.
8. Set the throttle autocalibration parameter to Off, or cycle the
keyswitch to reset it to Off. (If you are performing the reset by
cycling the keyswitch, note that KSI must remain off for at least
4 seconds.) The vehicle will not drive if the throttle autocalibration
parameter is left On.
THRTL DEADBAND
The throttle deadband parameter defines the throttle pot wiper voltage range
that the controller interprets as neutral. Increasing the throttle deadband set-
ting 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.
3 — PROGRAMMABLE PARAMETERS:
Throttle Parameters
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