Eahora KD986 User manual

KD986
manual for
owner

Product Model
Smart Color LCD Display for E-bike
Model: KD986
Specifications
Appearance and Size
Display(unit: mm):
Power Supply: 24V/36V/48V
Rated Working Current: 10mA
Maximum Working Current: 30mA
Shutdown Current Consumption: <1uA
Operating Temperature: -20℃~ 60℃
Storage Temperature: -30℃~ 70℃

Function Summary
Remote(unit: mm):
KD986 has various of functions to meet the owners’ needs:
Speed Indication (real-time speed/maximum speed/average speed)
Mileage Indication (single trip mileage/odometer mileage)
Trip Time Indication
Push-assistance Function Indication
Headlight Indication
Assistance-level Indication
Battery Percentage Indication
Motor Power Indication
USB Connection Indication
Error Code Indication
Parameter Settings (wheel diameter, speed limitation, assistance-
level, etc.)

The display will show the real-time speed and the single trip mileage
after being turned on.
Pressing the “i” button to view more riding data scrolling as below:
single trip mileage (km) →odometer mileage (km)→maximum speed
(km/h)→average speed(km/h)→trip time (min)
If the E-bike isn’t underused for more than 10 minutes, the
display will switch off automatically.
General Operation
Display Interface
After switching off the E-bike system, the current consumption is
less than 1uA.
Switching On/Off
Press the power button to switch on the E-bike system and power
supply. Hold the power button for 2s to switch off the E-bike system
and power supply.

Do not activate this mode while riding. It could only be
used when pushing the E-bike.
Headlight
Hold the “ ” button for 2s to turn on the headlight and the LCD
luminance will automatically decrease.
Hold the “ ” button for another 2s to turn off the headlight.
Headlight On
Push-assistance Mode
Hold the “-” button for 2s to activate the push-assistance function and
keep pressing the “-” button to use this function. The E-bike will work at
a constant speed of 6 k m/h under this mode and the screen will show
“”. Release the “-” button to exit this mode.

Battery Percentage Indication
Assistance-level Indication
The battery power/voltage shows in the five bars. 100% refers to the
battery is fully charged and the battery voltage is on the highest level.
While 0% refers to the battery needs to be charged immediately.
Battery Percentage Indication
Assistance-level
Press the +/- button to switch the E-bike system assistance-level
which will also change the motor output power. The default setting
of assistance-level is “0-5”. “0” refers to no output power. “1” refers
to the minimum output power while “5” refers to the maximum
output power. The default value is “1” after turning on the display.

The motor power can be read on the interface.
Motor Power Indication
USB Connection Indication
Motor Power Indication
Plug a USB external device into the display and the interface will
show an indicator as below.
USB Connection Indication

Error Code Indication
Error code
21
22
23
24
25
30
Definition
Current Abnormality
Throttle Abnormality
Motor Abnormality
Motor Hall Signal Abnormality
Brake Abnormality
Communication Abnormality
Error Code Indication
Error code appears when the electronic control system of the E-bike
fails. Every error code refers to a different component fault.
When there is an error code, please eliminate the fault in time or it
can’t work normally.

General Settings
General Settings
After switching on the E-bike system and power supply, hold the “+”
button and the “-” button together for 2s to enter the general settings
menu. It includes Display Setting and Advanced settings.
All the settings should only be operated after the bike is parked

Single Trip Distance Clearance
Display settings:
Unit Conversion
Metric/Imperial Unit Conversion
Toggle Unit refers to unit conversion. Press the +/- button to to switch the
unit. The default setting is "metric system (km)".
Press the “i” button to save the modified setting.
Single Trip Distance Clearance
To clear trip distance, press the +/- button to select “Yes” or “No”.
“Yes” refers to clear a single ride distance. “No” refers to not clear a
single ride distance. “No” is the default setting.
Press the “i” button to save the modified setting.

Wheel Diameter Settings
LCD Luminance Setting
Wheel Diameter Settings
Wheel refers to wheel diameter settings. Press the +/- button to increase
or decrease the wheel diameter. The default value is 28 inch.
Press the “i” button to save the modified setting.
LCD Luminance Setting
LCD Luminance refers to the brightness of the screen. 100% is the
brightest, lower percentage equals to lower brightness. Press the
+/- button to change the screen brightness.
Pressthe "i" button to save the modified setting.

Advanced settings:
Use the correct password to enter the advanced settings interface.
The default password is 1212. Press the +/- button to switch the number.
Press the "i" button to confirm each number.
Password Input
Assistance-level Setting
There are 8 different modes of assistance-level: 0-2, 1-2, 0-4, 1-4, 0-6, 1-6,
0-8, 1-8. The default value is 0-6.
Press the +/- button to switch the assistance-level mode.
Press the “i” button to save the modified setting.
Assistance-level Setting

Voltage Setting
Speed Limitation Setting
Voltage Setting for Battery Bars
Set Voltage refers to the battery power bars setting. The rated voltage
can be switched to 36 volts or 48 volts . The default voltage is 48 volts.
The voltage value of each bar can be set. For example, VOL 1 refers to
the voltage value of the first bar which is set as 41.5 volts.
Press the +/- button to change the default value and press the "i"
button to confirm and enter the setting for next bar. After all five
voltage values are set, press the "i" key to save the modified setting.
Speed Limitation Setting
Speed Limit refers to the max speed limit setting. The max speed limit is
ranged from 15km/h to 99.9 km/h.The default max speed limit is 27km/h..
When the real-time speed is higher than the max speed limit, the electric
bicycle system will automatically shut down.
Press the +/- button to increase or decrease the value.
Press the "i" button to save the modified setting.

If there is no operations in one minute, the display will
exit the setting page.
Throttle Speed Limitation Setting
Throttle Speed Limitation Setting
Quality Assurance and Warranty Scope
Throttle speed refers to the max speed limit setting of the throttle.
There are four options: 6/25/30/99.9 (km/h). The default speed limit
of the throttle is 6km/h which means the speed isn't able to surpass
6km/h when using the throttle.
Press the +/- button to switch the value.
Press the "i" button to save the modified setting.
A limited warranty is valid for product quality faults under
normal use.
The warranty of the display is valid for 24 months since it is
shipped.
The following conditions are not covered by the warranty :
The housing of the display is opened
The connectors are destroyed
The housing is scratched or damaged after it is shipped.
The external wire of the display is scratched or damaged.
Fault or damage caused by force majeure or natural disaster.
(such as fire, earthquake,lightning strike, etc.)
The product is beyond warranty period.

Connection Layout
Cautions
﹢
﹣
Color
Data acceptance
Red（VCC）
Blue（K）
Black（GND）
Green（RX）
Yellow（TX）
2
3
4
5
1
Pin Sequence Table
pin
Controller power
Function
Some wires were covered by water-proof connectors and the
color is invisible.
Data tranS
This operating instruction is a general version. Some versions of the
display software may vary from the specifications, which depends
on the actual version .
Avoid bumping the display.
Be careful to modify the parameter settings, or normal riding may
not be guaranteed.
Get the display fixed on time when it is unable to work.
Due to safety concerns,do not plug or unplug the display when it is
powered on.