Removable Pedal Assist Sensor (Rpas) - ARC CONVERSION KIT User Manual

Removable Pedal Assist Sensor (RPAS)

Normally this step would involve the
removal of the crank which can be quite
complicated. Thanks to the innovative
RPAS, this step is now a breeze!
To begin, have a look at the black
plastic magnet wheel and the way the
two halves join together. When you
snap them together on the crank axle,
(on your bike) you will then need to
fit the steel circlip around the outside
groove.
The purpose of the pedal assist sensor is to generate a signal from the rotation of
the crank that the controller processes to know that you're pedaling and want some
power!
How does this work? Magnets on the disk generate a changing magnetic field or a
'hall effect' and this is picked up by the hall effect sensor which transmits a signal
to the controller. The pedal assist is the primary function of an electric bike and the
level of assistance is adjustable on the handlebar LCD.
1. The sensor will need to line up very closely (under 5mm) to the RPAS disk.
2. Be sure to have the "working side" text facing the sensor. The RPAS is directional,
so when you pedal backwards, the motor won't engage (that would be dangerous
and annoying!)
3. With the two halves of the disk mated together you can mount the silver circlip
onto the disk, without jamming your fingers in the process (ideal, but not always
possible).
4. When fitting the hall effect cadence sensor, the adhesive section is only there to
hold it in place while you secure the sensor with cable ties provided.
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