I just bought an S866 LCD paired with a BrainPower 36/48v 350 Watt controller and had both the E10 and E30 errors and after 4 hours of diagnosing what was wrong i found 2 issues.
E30 seemed to be a connector that wasnt making a good connection
E10 seemed to be a setting in the LCD - namely this one that controls the communication protocol, i put P20 to 0 and it seemed to work
P20:0: Protocol No. 2 1: 5S Protocol 2: Alternate 3: Alternate
Had a few other errors but but they were all gone after connecting up the brakes and hall sensors and the motor phase leads, then setting the motor to spin right direction on the inteligent detection green wire
Below are the list of all the P codes and fault codes from the manual.
4.Setting
P01: backlight brightness, level 1 is the darkest, level 3 is the brightest;
P02: mileage unit, 0: KM; 1: MILE;
P03: Voltage level: 24V, 36V, 48V, 60V, 64V Default 36V;
P04: Sleep time: 0, no sleep; other numbers are sleep time, range: 1-60; unit minutes;
P05: Power assist position: 0, 3 file mode: 1, 5 file mode:
P06: Wheel diameter: unit, inch; accuracy: 0.1; This parameter is related to the display speed of the meter and needs to be entered correctly.
P07: Number of speed magnets: Range: 1-100; This parameter is related to the display speed of the meter and needs to be entered correctly. If it is a normal hub motor, directly input the number of magnetic steel; If it is a high speed motor, it is also necessary to calculate the reduction ratio, input data = number of magnets × reduction ratio; For example: motor magnet steel number 20, reduction ratio 4.3: input data: 86=20×4.3
P08: Speed limit: the range is 0-100km/h, 100 means unlimited speed. The input data here indicates the maximum running speed of the vehicle: for example, input 25, indicating that the maximum running speed of the vehicle does not exceed 25km/h; the driving speed is maintained at the set value. Error: ±1km/h; (both assist and speed limit) Note: The value here is based on kilometers. When the unit setting is converted from kilometer to mile, the speed value of the display interface will be automatically converted to the correct mileage value, but the speed limit value data set at this menu under the mile interface. No conversion, inconsistent with the actual display mile speed limit value;
Note: The P09-P15 menu is only valid in the communication state.
P09: zero start, non-zero start setting, 0: zero start; 1: non-zero start;
P10: Drive mode setting 0 : Power drive (the booster position determines how much power is output, and the switch is invalid). 5 1 : Electric drive (driven by the rotary handle, the power assist position is invalid at this time). 2 : Power assist drive and electric drive coexist simultaneously
P11: Boost sensitivity setting Range: 1-24;
P12: Boost start strength setting Range: 0-5;
P13: Power magnetic steel disc type setting 5,8,12 magnetic steel three types
P14: Controller current limit value setting Default 12A Range: 1-20A
P15: Controller undervoltage value
P16: ODO clear setting Long press the up button for 5 seconds ODO clear
P17:0: cruise is not enabled, 1: cruise is enabled; auto cruise is optional (only valid for protocol 2)
P18: Display speed ratio adjustment range: 50%~150%,
P19: 0 gear enable bit, 0: 0 gear, 1: 0 gear
P20:0: Protocol No. 2 1: 5S Protocol 2: Alternate 3: Alternate
Fault Codes Below
Table 1: Fault code and meaning
Fault code (decimal) Fault status Remarks
0 normal status
1 Reserved 4
2 brake
3 Power sensor failure (ride sign) Not implemented here
4 6KM/H cruise
5 Real-time cruise
6 Battery undervoltage
7 Motor failure
8 Turn fault
9 Controller failure
10 Communication reception failure
11 Communication failure
12 BMS communication failure
13 Headlight failure
Hope this helps anyone with this combination.
I tried the S866 with my 1500W KT-36/48v before diagnosing so not sure if still getting the E10 because not sure what protocol the KT controller communicates on
