It's not that RTN is eventually tied to B- by some long route as detectable with a voltmeter, it's WHERE it's tied to B-. The point of attachment can be significant even if the schematic shows that different points go to the same place. I would suggest that you follow their recommendation and attach RTN to the connector exactly as shown.pchen92 wrote:I connected RTN to B- battery, is it ok ? Because in the manual they say (on the left of the diagram) to don't connect GND to B- but GND is connected to RTN through neutral for halls.
There is greater noise immunity and fewer issues with ground reference for the throttle if you connect the CA GND (black wire) to the controller GND (shunt+) as illustrated in the manual diagram. There can be reasons to do otherwise, but if you don't have or understand those special needs, it's best to do it the 'standard' and more bulletproof way.pchen92 wrote:I guess I have to connect the black wire to B-, so either at the same place as shunt+ or shunt-. Is it ok ?
For the Kelly, I would recommend that you tie the CA red (B+) wire to the PWR pin so that the key switch controls both the controller and CA.
I believe you will need to add a resistor to your throttle hookup to get the CA limiting to work with that Kelly. This will be as shown in "Appendix D. Adding a CA-DP Connector to a Generic Controller" of the CA V3 Guide except, of course, you will plug the throttle into the controller not the CA (V2 vs V3). You will also see there how to use a hall signal if you wish to eliminate the wheel pickup (CA-DP vs CA-DPS). That illustration shows the external molded shunt, but the green, black, and yellow wires of the CA-DP cable are simple feed-thoughs in that shunt so you have them available straight from the CA-DP cable.