WP8 Grounding Cable

For some reason certain torque sensors (ERider and Sempu) are susceptible to electrical interference with ASI based motor controllers, resulting in the torque output signal occasionally getting stuck high or low. That in turn causes excessive power when pedaling or none at all, usually until the power is turned off and on and the torque sensor electronics reset.   This happens in just a minority of installations and experience has shown that it goes away when the frame is grounded to the battery ground. 

This cable provides a convenient way to groud the frame at bottle eyelets for systems that have the torque sensor attached to a Cycle Analyst and not the controller. Just plug one end into the unused 8-pin CA3 plug of the motor controller, and the ring terminal on the other end gets screwed to the bike frame. An internal fuse protects against any shorts of other signals to the frame. This cable works with:

• Baserunners V3 onwards
• Phaserunner V3 onwards
• Frankenrunners 

If you have a system where the torque sensor is hooked up to a V3 Cycle Analyst, then use the PAS Ground cable instead.