Hello,
today I was charging my new toy (Renault Zoe Z.E.50 :-)) ) using Victron EV charging station. EVCS is part of complete Victron PV system (3x Multis with FW v490, 3x MPPTs with the latest FW, Cerbo GX with the latest FW) and have the latest FW v1.23. I am also testing minimal charging current which can be set for proper charging the Zoe and I found some crazy behaviour.
If I set charging current 10 amps, everything is good, EVCS shows charging power/currents, Zoe is charging. But when I change current to 6 amps, EVCS still shows practically the same charging power/currents (and cumulates charged energy), but Zoe is not charging. This seems to be known problem in FW.
But I have another problem. If I start charging with 6 amps, EVCS shows corresponding power/currents on all phases (and cumulated charged energy), but Zoe is not charging! How is it possible, that EVCS indicates charging power, but EV is not charging?
If I changed charging current to 13 amps, charging power/currents on EVCS is changed to corresponding values and Zoe is charging. Also charging power is added to home consumption on AC output. This is generally OK, because EVCS is connected to AC out, but graphical interpretation in VRM is wrong, because power should be divided to EVCS and AC loads, or I have perpetuum mobile at home :--)
Charging current 10 amps also works, but charging power does not correspond to set charging current - EVCS typically indicates around 5.4 kW instead of 6.9 kW.
Next found problem is with slide switch for activate/deactivate charging. I started charging by click on button START on EVCS display. Then after some time I want to stop charging by slide switch "Charge" in VRM app (on iPhone), but even after many clicks I am not able to do that. Same situation is in VRM app on MacBook Air M1 and also in VRM portal opened in Safari (on Mac and iPhone). So I must go to garage and stop charging on EVCS display. Is this problem exists only on Apple devices with iOS/macOS or also on Android/Windows devices?