Curtis 1243GEN2 Manual
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M1–M4, MAX FWD SPD
The maximum forward speed parameter defines the maximum controller
voltage output at full throttle, in the forward direction. The maximum forward
speed parameter is adjustable from the programmed creep speed up to 100%.
It is tuned as part of the vehicle performance adjustment process (Section 5).
M1–M4, MAX REV SPD
The maximum reverse speed parameter defines the maximum controller
voltage output at full throttle, in the reverse direction. The maximum reverse
speed parameter is adjustable from 0% to 100%. It is tuned as part of the vehicle
performance adjustment process (Section 5).
CREEP SPEED
The creep speed parameter defines the initial controller output generated when
a direction is first selected. No applied throttle is necessary for the vehicle to
enter the creep mode, only a direction signal. The controller maintains creep
speed until the throttle is rotated out of the throttle deadband (typically 10%
of throttle).
Creep speed is adjustable from 0% to 25% of the controller output; it
cannot be set higher than the lowest programmed M1–M4 maximum forward
speed. The specified creep speed is not displayed as the throttle percent in the
programmer’s Test Menu when a direction is selected and zero throttle is
applied; only the 0% throttle command is displayed.
LOAD COMP
The load compensation parameter actively adjusts the applied motor voltage
as a function of motor load current. This results in more constant vehicle speeds
over variations in driving surface (ramps, rough terrain, etc.) without the vehicle
operator constantly adjusting the throttle position; it also helps equalize loaded
and unloaded vehicle speeds. The load compensation parameter is adjustable
from 0% to 25% of the controller’s PWM output. High values will cause the
controller to be more aggressive in attempting to maintain vehicle speed.
However, too much load compensation can result in jerky vehicle starts and
speed oscillation (“hunting”) when the vehicle is unloaded.
The load compensation parameter is tuned as part of the vehicle perfor-
mance adjustment process (Section 5).
Speed Parameters
3 — PROGRAMMABLE PARAMETERS:
Speed Parameters
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