You need to install the help file fix before you can see all the help stuff. Further up the page. Unless you are on an old operating system.
When you do it says:
ExplanationThese parameters add exponentials to the start and end of the true acceleration gradient. The resulting s-curve softens the acceleration of the wheelchair when pulling away, to take up gearbox backlash, and when approaching the demanded speed, to avoid a sudden change of acceleration. Correct programming of these parameters is essential for smooth wheelchair operation and the durability of the motors and gearbox.
Low BacklashThis parameter sets the size of the curve when accelerating from zero. It is set as a percentage of the maximum fwd/rev speed. Therefore if Low Backlash is set to 25% the wheelchair will reach its true acceleration gradient after 25% of the maximum fwd/rev speed.
Adjustable in steps of 2% between 2 and 100%.
Soft BacklashThis parameter sets the starting gradient of the Backlash curve when accelerating from zero. It is set as a percentage of the acceleration gradient. Therefore the Soft Backlash is set to 25% the curve will start at a gradient ¼ of the size of the true acceleration gradient. The curve will then increase automatically to reach its true gradient at the Low Backlash point.
Adjustable in steps of 2% between 10 and 100%.
Low Forward This parameter sets the size of the curve when nearing the final demand speed. It is set as a percentage of the overall fwd/rev speed. Therefore Low Forward is set to 25%, the acceleration will start to reduce (taper-off) when the wheelchair reaches 75% of its maximum fwd/rev speed
.Adjustable in steps of 2% between 2 and 100%.
Soft ForwardThis parameter sets the finishing gradient of the Forward curve when nearing the final demand speed. It is set as a percentage of the acceleration gradient. Therefore if Soft Forward is set to 25% the curve will finish at a gradient ¼ of the size of the true acceleration gradient.
Adjustable in steps of 2% between 10 and 100%.
Whether a wheelchair is accelerating or decelerating in forwards or reverse direction Low / Soft Spin parameters take effect.
When a wheelchair is accelerating in forwards or reverse direction the Low / Soft Backlash parameters take effect.
When a wheelchair is turning only Low / Soft Spin parameters take effect.
Low SpinThis parameter sets the size of the curve when nearing the final spin demand level. It is set as a percentage of the maximum spin speed. Therefore if Low Spin is set to 25%, the acceleration will start to reduce (taper-off) when the wheelchair reaches 75% of its maximum spin speed.
Adjustable in steps of 2% between 2 and 100%.
Soft SpinThis parameter sets the finishing gradient of the Spin curve when nearing the final spin demand level. It is set as a percentage of the acceleration gradient. Therefore if Soft Forward is set to 25% the curve will finish at a gradient ¼ of the size of the true acceleration gradient.
Adjustable in steps of 2.5% between 10 and 100%.
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All MUCH easier to understand with the diagram.