Curtis 1244 User Manual page 61

Curtis 1244 Manual,
Rev. E
➀
-A Tuning the Throttle Deadband
step 1. Jack the vehicle wheels up off the ground so that they spin freely.
step 2. Plug the programmer into the controller and turn on the key-
switch and interlock switch (if used).
step 3. When the programmer instructs you to select a menu, select the
Monitor Menu. The Throttle % should be visible at the top of
the display. You will need to reference the value displayed here.
step 4. Scroll down until the Forward Input is visible. The display should
indicate that the forward switch is Off.
step 5. Slowly rotate the throttle forward until the display indicates
that the forward switch is On. Use care with this step as it is
important to identify the threshold throttle position at which
the forward switch is engaged and the controller recognizes the
forward command.
step 6. Without moving the throttle, scroll up to display the Throttle
% and read the value shown. This value should be zero. If the
Throttle % value is zero, proceed to Step 7. If it is greater than
zero, the Throttle Deadband parameter must be increased and
the procedure repeated from Step 5 until the Throttle % is zero
at the forward direction engagement point.
step 7. While observing the Throttle % value in the programmer's
Monitor Menu, continue to rotate the throttle past the forward
switch engagement point. Note where the Throttle % value begins
to increase, indicating that the controller has begun to supply
drive power to the motor. If the throttle had to be rotated fur-
ther than desired before the Throttle % value began to increase,
the Throttle Deadband parameter value must be decreased and
the procedure repeated from Step 5. If the amount of rotation
between the point at which the Forward switch is engaged and
the Throttle % value begins to increase is acceptable, the Throttle
Deadband is properly tuned.
step 8. If a bidirectional (wigwag) throttle assembly is being used, the
procedure should be repeated for the reverse direction. The
Throttle Deadband value should be selected such that the throttle
operates correctly in both forward and reverse.
6 — VEHICLE PERFORMANCE ADJUSTMENT
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