Hi all, I'm having a problem with my ebike build. I have searched the forum and read previous threads, tried various suggestions including using the "current unlock" version of the controller software, but the problem persists.
These are the components in question:
Sabvoton SVMC 72150 (with BlueTooth)
UKC TFT display
QS 205 V3 5000W (high torque model)
22S battery
ANT 300A BMS
I start by disconnecting the display, inserting the small terminator on the display cable and disconnecting the plug with the three cables. Then I connect the PC to the USB, or use the BlueTooth dongle and MQCON app on iOS.
The specs of the controller state a maximum voltage of 95V and my battery runs at 92.4V fully charged.
With everything connected, the controller shows a steady red LED, but the green LED flashes twice every few seconds.
When I connect to the MQCON software, I have both RX and TX flashing, so the connection is good and all settings fields are populated, but the "overvolt" error appears and is the only error shown.
I edit the max battery voltage field, hit OK, select "save settings" on the DEBUG page, power cycle the controller, but the change is not saved.
Whenever I view the page after entering the desired value, it has reverted to the default 88V. This happens whether I power cycle the controller or not, and whether I hit save on the debug page or not.
I have tried the above procedure with a 72V battery and everything I can think of, but I can't seem to change the max battery voltage, and the controller will not work unless I use a battery with 88V or less.
I would appreciate any ideas you guys might have, please?
Thanks.
These are the components in question:
Sabvoton SVMC 72150 (with BlueTooth)
UKC TFT display
QS 205 V3 5000W (high torque model)
22S battery
ANT 300A BMS
I start by disconnecting the display, inserting the small terminator on the display cable and disconnecting the plug with the three cables. Then I connect the PC to the USB, or use the BlueTooth dongle and MQCON app on iOS.
The specs of the controller state a maximum voltage of 95V and my battery runs at 92.4V fully charged.
With everything connected, the controller shows a steady red LED, but the green LED flashes twice every few seconds.
When I connect to the MQCON software, I have both RX and TX flashing, so the connection is good and all settings fields are populated, but the "overvolt" error appears and is the only error shown.
I edit the max battery voltage field, hit OK, select "save settings" on the DEBUG page, power cycle the controller, but the change is not saved.
Whenever I view the page after entering the desired value, it has reverted to the default 88V. This happens whether I power cycle the controller or not, and whether I hit save on the debug page or not.
I have tried the above procedure with a 72V battery and everything I can think of, but I can't seem to change the max battery voltage, and the controller will not work unless I use a battery with 88V or less.
I would appreciate any ideas you guys might have, please?
Thanks.