Dynamic DX User Manual

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The influence of the Drive Profile Maximum Speed settings
The actual shape of the physical resistor plate overlaid on the speed graph depends
on the Speed @ Maximum parameters of a particular Drive Profile (see 5.3.2) and the
momentary setting of the Speed Pot.
In slow Drive Profiles or with low Speed Pot settings, the actual speed demand may
never reach the value where it would cause the chair to become unstable, so in that
particular Drive Profile the chair stability parameters may never have to intervene.
77
Testing
Because the stability of a particular chair design depends on so many factors, it is
almost impossible to calculate the correct values of the chair stability parameters
beforehand. For this reason it is recommended to derive the suitable value of these
parameters by actually physically testing their effect on the chair stability of a
particular chair, and adjusting the values as necessary. See section 7.4:
Programming
and testing a DX chair for stability
.
A possible starting point to prevent Front Wheel Drive powerchairs from spinning
could be:
Parameter Name Value
Speed X Turn for Grip 65%
Accel out of a Turn for Grip 150%
Accel into a Turn for Grip 150%
Warning:
Any given settings are to be used as a guideline only.
• It is the responsibility of the powerchair manufacturer to make sure
that the program is safe and suitable for a particular chair
configuration.
• It is the responsibility of the dealer or therapist to check and make
sure that the settings of a chair for a particular user are safe and
appropriate for that user.
FW Speed @ Max 100%
Rev Speed @ Max 100%
Turn Speed @ Max 100%
FW Speed @ Max 100%
Rev Speed @ Max 30%
Turn Speed @ Max 40%
FW Speed @ Max 20%
Rev Speed @ Max 20%
Turn Speed @ Max 20%
100%
forward
speed
100%
turning
speed

Dynamic DX Specifications

General

Brand	Dynamic
Model	DX
Category	Network Router
Language	English