Hey everyone.
I'm Artem. And here's my problem
I have 2 VEC-300 controllers and 2 5kW motors. ALl from Goldenmotor. I forgot to order USB cable, but after looking in manual and on cable photos, it's easy to understand, that it's just simple USB-UART converter. Manual also provides pinout for it. So I took my FT232 board, hooked it to one of VEC300 and was able to connect successfully. Disabled recuperation (because my battery is still on the way and I decided to use Pb batteries for testing). Testes one motor and controller, everything worked like a charm. Decided to test second set. Hooked second VEC300 to my DIY USB cable and... tadaaaa - timeout message. After few times of connect/disconnect and buttons pressing, I was able finally to connect to second controller. Changed recuperation to disabled, pressed upload and... again, timeout. Tried different PC, different USB on those PC, no luck. My diy USB cable is 100% working, because I use it for various tasks.
Goldemotor online support just ignored my question and I got ... timeout, haha, in online chat.
I've found here, on forums, that older software can be used to trick controller for connection, but dropbox link is dead and I cant find it anywhere else.
I also found that battery connection can help. But in one of manual I got from interner for VEC300, they underline, that during programming battery should be disconnected. So I'm sort of affraid to try:)
I really need community help. Because if I don't change recuperation option, it will damage my Pb batteries.
Thanks in advance!