Recently put my ebike kit together and almost all is well. It appears the pedal assist sensor (PAS) doesn't work. It's the cadence type with 8 magnets. I haven't found a good write-up online of what's normal, so I thought you guys might compare notes with me.
I have three wires like most - red (power), white (signal), and black (ground).
When the PAS is not plugged in the RED wire reads 4.35V relative to ground. The WHITE wire reads about 5.04V.
When the PAS is plugged in the RED wire reads 4.35V relative to ground. The WHITE wire reads 0V. WHITE wire continues to read 0V even when rotating the crank with sensor components in place which makes me think the sensor is dead.
Two questions:
(1) Is 4.35V enough to power the sensor? I always see power referenced as 5V (clearly the controller can produce that on the white wire), and 4.35V seems low.
(2) Is the sensor dead - I'm seeing no signal on the white wire ever? I've played with the position of the magnets but never see any change from 0V.
I've bought another since it's just $9, but I'm wanting to know what you guys think. The 4.35V worries me. Thanks for any help. Much appreciated.
I have three wires like most - red (power), white (signal), and black (ground).
When the PAS is not plugged in the RED wire reads 4.35V relative to ground. The WHITE wire reads about 5.04V.
When the PAS is plugged in the RED wire reads 4.35V relative to ground. The WHITE wire reads 0V. WHITE wire continues to read 0V even when rotating the crank with sensor components in place which makes me think the sensor is dead.
Two questions:
(1) Is 4.35V enough to power the sensor? I always see power referenced as 5V (clearly the controller can produce that on the white wire), and 4.35V seems low.
(2) Is the sensor dead - I'm seeing no signal on the white wire ever? I've played with the position of the magnets but never see any change from 0V.
I've bought another since it's just $9, but I'm wanting to know what you guys think. The 4.35V worries me. Thanks for any help. Much appreciated.