Curtis 1212 Manual
17
THROTTLE MENU, cont’d
ALLOWABLE
PARAMETER RANGE DESCRIPTION
Calibration On/Off Wigwag and unipolar throttle pots should be centered. Setting this
parameter to On inhibits driving and puts the controller into throttle
autocalibration mode; see procedure below.
Setting the parameter Off returns the controller to normal operation.
3 — PROGRAMMABLE PARAMETERS:
Throttle Parameters
CALIBRATION OF WIGWAG AND UNIPOLAR THROTTLE POTS
The Calibration parameter provides a means of easily and reliably center
-
ing wigwag and unipolar throttle pots. A horn must be connected to the
horn driver during the procedure. The controller inhibits driving while in
calibration mode, enabling the throttle pot to be adjusted safely.
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 the keyswitch on.
4. Select the program mode and scroll down to the throttle autocalibration
parameter.
5. Set the Calibration parameter On (Program » Throttle » Calibration). At
this point, the horn will probably sound, indicating that the throttle pot
is out of adjustment. If the horn does not sound, the pot is already
centered and no further adjustment is necessary.
6. With the throttle lever at the neutral position, adjust the potentiometer
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 calibration parameter 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.
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