Recumbent Ron
1 mW
- Joined
- Jun 27, 2018
- Messages
- 10
I have installed a Sempu torque sensor bottom bracket with my new Cycle Analyst 3, Phaserunner and Crystalyte H3525 UFO Rear Motor. I’ve tried several different settings and just not having any luck getting the Sempu to work properly. Could sure use the wisdom of others here to help me figure this out. I followed the instructions in both of the videos at Grin, cannot see that I did anything wrong.
No matter what I do, it will not kick in while pedaling forward, and I get no readings on the CA screen for Hwt or RPM when I do so. But, and this is the interesting part, if I’m just sitting still and pedal backwards, the hub motor wants to kick in and move me forward. Also, the backwards pedal does generate readings on the CA, positive numbers for both Hwt and RPM. I have changed the polarity in the CA, it does this no matter which way I set the polarity. Here are my current settings:
PAS DEVICE SETTINGS
PAS Poles: 24 Pulses/Rev
PAS Signal Type: 2-Wire
PAS Direction Polarity: 5V Forward
Devise Sensor Type: Sempu BB
Zero Torque Offset: 1.50 V
PAS CONFIG SETTINGS
PAS Assist Mode: Torque
Assist Start Level: 5 HW (have even tried 0, 1 and 26 without success)
Assist Scale Factor: 4.00 W/HW
Torque Assist Averaging: 12 Poles
Start Threshold: 0.45 sec/pole
Stop Threshold: 0.29 sec/pole
This is installed on a recumbent trike. I installed the crank arm 90 degrees to the right on the bottom bracket per the video instructions. I should also add that I also have a GRIN Basic PAS and installed it to test all the wiring and equipment, it worked with no problem. I've rechecked all the Sempu wiring several times.
Overall I’m thrilled with everything about this new setup, just needing to figure out the Sempu.
Thanks for any advice you can provide.
No matter what I do, it will not kick in while pedaling forward, and I get no readings on the CA screen for Hwt or RPM when I do so. But, and this is the interesting part, if I’m just sitting still and pedal backwards, the hub motor wants to kick in and move me forward. Also, the backwards pedal does generate readings on the CA, positive numbers for both Hwt and RPM. I have changed the polarity in the CA, it does this no matter which way I set the polarity. Here are my current settings:
PAS DEVICE SETTINGS
PAS Poles: 24 Pulses/Rev
PAS Signal Type: 2-Wire
PAS Direction Polarity: 5V Forward
Devise Sensor Type: Sempu BB
Zero Torque Offset: 1.50 V
PAS CONFIG SETTINGS
PAS Assist Mode: Torque
Assist Start Level: 5 HW (have even tried 0, 1 and 26 without success)
Assist Scale Factor: 4.00 W/HW
Torque Assist Averaging: 12 Poles
Start Threshold: 0.45 sec/pole
Stop Threshold: 0.29 sec/pole
This is installed on a recumbent trike. I installed the crank arm 90 degrees to the right on the bottom bracket per the video instructions. I should also add that I also have a GRIN Basic PAS and installed it to test all the wiring and equipment, it worked with no problem. I've rechecked all the Sempu wiring several times.
Overall I’m thrilled with everything about this new setup, just needing to figure out the Sempu.
Thanks for any advice you can provide.