I imagine when new the controller and the cable are supplied as a pair, it works just fine, and I can see the attraction of one less core in the cable
I think this means that folk have to be careful if you replace the cable that is set up to match the EVSE - it would be easy to fit the wrong one, and 'lie' to the car so it draws current from the mains supply when it is not intended, or it never comes on at all.
I assume at some point someone will damage a lead or connector and make this error when replacing it and get very confused.
And yes sorry, I was a bit dopy last night, the CP sets the power - the 'information direction' of the PP is only from charger to car, and you are right the signal is much cruder (more go/ no-go) than the control pilot (CP) which is a bidirectional communications in the sense that the charger alters the duty cycle of the tone to indicate the charger power, and the car can reply back to the EVSE by modulating the load it presents.
I have edited my response so it is not too misleading for anyone else reading quickly.
However, the fact remains the resistor needs to be the right value, and fitting two, both in plug and at PCB, or none, will bring it all to a shuddering half.
If only the use of the pilot pin on CEEFORM connectors was this well standardised.
I imagine when new the controller and the cable are supplied as a pair, it works just fine, and I can see the attraction of one less core in the cable
I think this means that folk have to be careful if you replace the cable that is set up to match the EVSE - it would be easy to fit the wrong one, and 'lie' to the car so it draws current from the mains supply when it is not intended, or it never comes on at all.
I assume at some point someone will damage a lead or connector and make this error when replacing it and get very confused.
And yes sorry, I was a bit dopy last night, the CP sets the power - the 'information direction' of the PP is only from charger to car, and you are right the signal is much cruder (more go/ no-go) than the control pilot (CP) which is a bidirectional communications in the sense that the charger alters the duty cycle of the tone to indicate the charger power, and the car can reply back to the EVSE by modulating the load it presents.
I have edited my response so it is not too misleading for anyone else reading quickly.
However, the fact remains the resistor needs to be the right value, and fitting two, both in plug and at PCB, or none, will bring it all to a shuddering half.
If only the use of the pilot pin on CEEFORM connectors was this well standardised.
