(Linked from Conversion to eBike)
Table of Contents
External Documentation
The KT3 series is a popular line of smart displays that are used for managing settings. I am under the impression that it originates from Suzhou Kunteng Electronics Co., they have manuals and if you stumbled on this page looking for other models, you might want to visit them. Their server is very slow from time to time. Below are also cached versions, to save you from a waiting frustration.
- KT-LCD3 e-Bike Display User Manual_V3.0 | Page URL | Download URL | Cached here | This is the two page guide.
- KT-LCD3 eBike Special Meter User Manual_V3.0 | Page URL | Download URL | Cached here | Here you’ll find all settings.
There are three “Parameter Setting” chapters for 22 settings:
- “General Project Setting” (3)
- “P Parameter Setting” (5)
- “C Parameter Setting” (14)
Setting Parameters
Setting is done with:
- Arrow Up == UP
- On/Off == ENTER
- Arrow Down == DOWN
How “enter settings” work:
- Start with “General Project Setting”:
- Press ENTER long to start. When On, within 5 sec press UP+DOWN for 2 sec
- Within a minute: Use UP or DOWN to change values if needed, click ENTER to store and go to next value.
- After entering last setting (third, Metric or Imperial):
- Press ENTER for 2 sec to save and finish, or…
- Press UP+DOWN for 2 sec to get into “P Parameter Setting”
- Continue with “P Parameter Setting”:
- Within a minute: Use UP and DOWN to change values if needed, click ENTER to store and go to next value.
- After entering last setting P5:
- Press ENTER for 2 sec to save and finish, or…
- Press UP+DOWN for 2 sec to get into “C Parameter Setting”
- Continue with “C Parameter Setting”:
- Within a minute: Use UP and DOWN to change values if needed, click ENTER to store and go to next value.
- After entering last setting C14 press ENTER for 2 sec to save and finish.
In short, turn on – ENTER, directly UP+DOWN 2s, ENTER through the three General values, after last value UP+DOWN 2s for P Settings, ENTER P1… P5, UP+DOWN 2s, ENTER through C Settings and ENTER 2s to save.
Values
Tip: Write your settings down somewhere, if something breaks and you need a new device, you really wants these settings back.
Here are my values with their meaning, you can paste and modify it in a spreadsheet for your convenience.
| G1 | 72 | Maximum Trip Speed |
| G2 | 29″ | Wheel Diameter |
| G3 | m | Metric and Imperial Units |
| P1 | 46 | Motor Characteristic Parameter Setting |
| P2 | 0 | Wheel Speed Pulse Signal Setting |
| P3 | 1 | Power Assist Control Mode Setting |
| P4 | 0 | Handlebar Startup Setting |
| P5 | 12 | Power Monitoring Setting |
| C1 | 02 | Power-Assist Sensor and Parameter Select Setting |
| C2 | 0 | Motor Phase Classification Coding Setting |
| C3 | 8 | Power Assist Ratio Gear Initialization Setting |
| C4 | 4 & 50 | Handlebar Function Setting |
| C5 | 08 | Controller Maximum Current Adjustment Setting |
| C6 | 3 | Backlight Brightness Adjustment Setting |
| C7 | 0 | Cruise Function Setting |
| C8 | 0 | Motor Operating Temperature Display Setting |
| C9 | 0 | Startup Password Setting |
| C10 | n | Automatically Restore Factory Setting |
| C11 | 0 | Meter Attribute Selection Setting |
| C12 | 4 | Controller Minimum Voltage Adjustment Setting |
| C13 | 0 | ABS brakes of the controller and parameters of anti-charge control Setting |
| C14 | 2 | Power-assist tuning parameters Setting |
Do you know of a way to stop the groaning noise that occurs when starting from zero mph?
Unfortunately not.
hi i have just changed over to a 36v battery from a 24v do i have to change any of my parameters my display is a kt lcd3 unit
Those links are very often down. Welcome to China and censorship. That is why I added a cached location (on this site) 😉
https://vanderworp.org/wp-content/uploads/2019/06/20180702104418_55109.pdf
and
https://vanderworp.org/wp-content/uploads/2019/06/20160623091529_95187.pdf
do mention “voltage” only for the display location. So I assume it is safe to do the swap without altering setup.
Is it possible to reverse the motor?
If so, were can i find this setting?
Is that not something the controller should handle? Maybe searching for “How do you reverse the direction of a brushless motor?” offers suggestions, like changing wires 😉
Hi, i have himo v1 (its not v1 plus) and i randomly changed the menu setting in lcd display.. since i bought secondhand unit i dont have the manual book and i cant find the right settings or reset the lcd computer, can you please explain the p1 etc function?
I can’t help you. There must be documentation from Xiaomi. Nice bike!!
Setting C10 to Y should reset to factory default settings.
When I try to do the General project settings part, the light turns on but it does it give me the option to change any settings. I press ENTER and as soon as it turns on I press up and down together but nothing happens.
Maybe you could tell what controller model this is concerning? It might be faulty too. This post is a bit older now, ask the supplier and if things have changed it is appreciated to let it know here. Sorry for not being able to offer more support.