Temperature sensor in hub motor Baserunner setup

[nickceouk]

Rear hub motor connected to BR v5 z9 , throttle and ebrake work as expected.

The z9 connector from the motor has an additional white wire ( 5 hall related wires, 3 phases wires).
The wire sits at constant 0.85v in the temperature tab of the Phaserunner software.
This is then interpreted as the motor being at 88C ... The motor sits idle at room temperature so it can't be 88C.

How do I get this sorted?

 

[E-HP]

Isn't there a voltage > temp mapping in the software?

 

[TommyCat]

Isn't there a voltage > temp mapping in the software?

Section 6.5 in the manual…

https://ebikes.ca/pub/media/downloadable/documents/BaserunnerV4_Manual_Rev1.0.pdf

 

[nickceouk]

Isn't there a voltage > temp mapping in the software?

According to the default mapping 0.85v reading means the motor is at 88C when it's been sitting idle

To be fair, I am not convinced that my motor even has a temperature sensor hooked to the white wire from the z910 motor cable that it passes to the controller.
It might just be a speed sensor but I can't confirm even that by searching online and hence this post really...

 

[E-HP]

According to the default mapping 0.85v reading means the motor is at 88C when it's been sitting idle

To be fair, I am not convinced that my motor even has a temperature sensor hooked to the white wire from the z910 motor cable that it passes to the controller.
It might just be a speed sensor but I can't confirm even that by searching online and hence this post really...

If you run the motor the temp will rise’ if it’s a temp sensor and the voltage/temp will change, even if it’s not calibrated. If it’s a geared hub, then it’s probably a speed sensor, although the Grin stuff can work with a multiplexed (combined) temp and speed signal.

 

[nickceouk]

If you run the motor the temp will rise’ if it’s a temp sensor and the voltage/temp will change, even if it’s not calibrated. If it’s a geared hub, then it’s probably a speed sensor, although the Grin stuff can work with a multiplexed (combined) temp and speed signal.

After reading and comparing, I realized it's a geared motor and hence concluded that I don't have a temperature sensor but a speed sensor.
I know it's possible to open the motor and add a temperature sensor on the same speed wire that will then be demuxed by a grin controller into separate speed and temperature signals.
I have opened before a direct drive motor and a geared hub motor but I am not prepared and don't want to deal with this ...more so because I am setting this as headless and won't be able to track temperature changes as I envisioned.

I think this post is done. Thank you for your help and input