Curtis 1239E - Page 44

4 — PROGRAMMABLE PARAMETERS
Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
Return to TOC
pg. 40
1 - SPEED MODE — RESTRAINT MENU
PARAMETER ALLOWABLE RANGE DESCRIPTION
Restraint Forward
Restraint_Forward_SpdM
0x3020 0x00
0 – 100%
0 – 32767
Increases torque when on a steep hill in order to limit roll-forward speed.
Setting this parameter too high may cause oscillations in the motor as it
attempts to limit the roll-forward speed.
Restraint Back
Restraint_Back_SpdM
0x301F 0x00
0 – 100%
0 – 32767
Increases torque when on a steep hill in order to limit roll-back speed. Setting
this parameter too high may cause oscillations in the motor as it attempts to
limit the roll-back speed.
Soft Stop Speed
Soft_Stop_Speed
0x3027 0x00
0 – 500 rpm
0 – 500
Denes the speed below which a much slower decel rate is used.
A setting of zero disables the function. NOTE: This parameter works only in
Speed Mode and Speed Mode Express.
Soft Stop Speed is useful for vehicles that have fast deceleration and vehicles
operating on ramps using the Position Hold function.
With vehicles that have fast deceleration, the driver may nd the nal speed
reduction to zero rpm uncomfortable; the vehicle may even rock back as a
result of tire wind-up. Soft Stop Speed allows the vehicle to slow at the same
fast rate until it reaches the set threshold, at which point it changes to a
slower (softer) deceleration rate. However, if the threshold is set too high, the
vehicle will feel like it is “running on.”
When throttle is released on a ramp, the vehicle may roll back before Position
Hold (see below) takes control. Soft Speed Stop can be used to reduce the
amount of rollback, but shouldn’t be set so high the vehicle drives up the
ramp after the throttle is released.