KUNTENG KT-LCD3 Product User Manual

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User Manual

KT-LCD3 eBike Special Meter

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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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Contents

Preface……………………………………………………………………………..………. 4
Outlook and Size…………………………………………………………………………... 4

MeterDimension……………………………………………………………………… 4
Button Box Dimension……………………………………………………………….. 4

Main Material and Color………………………………………………….………...... 5

Wiring Schematic……………………………………………………………….……. 5

Installation Instruction……………………………………………………………….…….. 5

Φ 31.8 handlebar diameters install icon………………………………………..….… 5
Φ 22.2 handlebar diameters install icon……………………………………….….…. 5

Physical installation icon............................................................................................. 6

Function Overview……………………………………………………………………..….. 6
Display Content…………………………………………………………………….….…... 7
Button Definition…………………………………………………………………….….…. 7

Normal Operation………………………………………………………………………...... 7

On/Off…………………………………………………………………………........... 7

Display Interface………………………………………………………….….……..... 8

Display 1………………………………………………………………..……...... 8

Display 2……………………………………………………………………...... 9

Display 3……………………………………………………………..……….... 10

Display of Turned on Handlebar……………………………………………………. 11
Display of Power-assist Startup…………………………………………………….. 11
PAS Ratio (or Handlebar) Gear Switch……………………………….……………. 12
Push Function…………………………………………………………..…………… 12
Cruise Function…………………………………………………………………...… 13
Turn On/Off Backlight…………………………………………………….………... 13

Battery Capacity Indicator…………………………………………..…………….… 13

Motor Power and Temperature ................................................................................... 14

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Environment Temperature…………………………………………………………... 15

Single Data Clearing……………………………………………………………….... 15

Automatic Prompt Interface……………………………………………………..….. 16

Error Code Display…………………………………………………….…........ 16

Motor Operating Temperature Alarm……………………………………......... 16

User Project Setting……………………………………………………………………..... 16

General Project Setting…………………………………………………………………… 17

Maximum Trip Speed………………………………………………………….......... 17

Wheel Diameter…………………………………………………………………..…. 17
Metric and Imperial Units…………………………………………………………... 18

Exit General Project Setting……………………………………………………….... 19

P Parameter Setting……………………………………………………………….…….... 19

P1 Motor Characteristic Parameter Setting ............................................................... 19

P2 Wheel Speed Pulse Signal Setting ....................................................................... 20

P3 Power Assist Control Mode Setting ...................................................................... 21

P4 Handlebar Startup Setting ..................................................................................... 21

P5 Power Monitoring Setting ..................................................................................... 22

Exit P Parameter Setting ............................................................................................. 23

C Parameter Setting ............................................................................................................ 23

C1 Power Assist Sensor and Parameter Selection Setting ......................................... 23

C2 Motor Phase Classification Coding Setting .......................................................... 24

C3 Power Assist Ratio Gear Initialization Setting ..................................................... 25

C4 Handlebar Function Setting .................................................................................. 25

C5 Controller Maximum Current Adjustment Setting ............................................... 27

C6 Backlight Brightness Adjustment Setting ............................................................. 28

C7 Cruise Function Setting ........................................................................................ 28

C8 Motor Operating Temperature Display Setting .................................................... 29

C9 Power-on Password Setting .................................................................................. 30

C10 Automatic Restore Factory Setting ..................................................................... 31

C11 Meter Attribute Selection Setting ....................................................................... 32

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C12 Controller Minimum Voltage Adjustment Setting ............................................. 33

C13 ABS brakes of the controller and parameters of anti-charge control Setting ......34

C14 Power-assist tuning parameters Setting ...............................................................35

Exit C Parameter Setting............................................................................................. 36

Parameter Copy .................................................................................................................. 36

User Setting Note ............................................................................................................... 37

Version Information……………………………………………………………………… 38

ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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Preface

The illustrated manual will help you understand and be familiar with the meter
function, guiding you on how to operate the meter, how to set the project parameters, how
to achieve the best match of the three as motor, controller and meter to improve electronic
control performance of the electric motor. This manual covers installation, operation,
parameter setting of the meter and how to use it properly, which help you resolve the
problems appeared in practical use.

Outlook and Size

○ Meter Dimension

Meter Dimension

Dual Bracket Mounting Dimension

○ Button Box Dimension

ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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○ Main Material and Color

PC material is mainly used for KT-LCD3 meter and button box housing, and the
housing color is dark gray or white.

○ Wiring Schematic

Installation Instruction

The meter body and button box are mounted on the handlebars of the electric vehicle,
adjusting perspective. In the case that the vehicle is power off, the meter connectors are in
plug connection to corresponding controller connectors. Turn on the power, electric
vehicle and meter will be under normal operation, the meter installation is finished. The
protection film on meter display panel should be torn.

○ Φ 31.8 handlebar diameters install icon

○ Φ 22.2 handlebar diameters install icon

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○ Physical installation icon

Function Overview

KT-LCD3 meter provide you with a variety of functions such as vehicle controls and
vehicle status digitized displays to meet the trip demands.

◇ Trip time display (with displays of a single trip time (TM) and total trip time (TTM));
◇ Trip speed display (with displays of real-time speed (Km/H or MPH) and a single

maximum speed (MXS) and a single average speed (AVS));

◇ Trip distance display (with displays of a single trip distance (DST) and total trip

distance (ODO));

◇ Display of turned on handlebar;
◇ Display of power-assist startup;
◇ Power assistant ratio (or handlebar) gear (ASSIST) switch;

◇ 6Km/H power assistant push ( ) function;
◇ Cruise function (CRUISE);
◇ Battery capacity indicator ( );

◇ Real-time battery voltage (VOL) display;
◇ Motor power and temperature (MOTOR) display;

◇ Brake display ( );

◇ Turn on backlighting and lights ( );
◇ Environment temperature (℃ or ℉) display;

◇ Data clearing;
◇ Fault code display;
◇ User parameter setting

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◇ 24V, 36V, 48V supply voltage can automatic identification and be compatible

Display Content

The display content is shown as follow.

Button Definition

KT-LCD3 meter adopts the structural form with part design between the main part
and operating buttons.

There are three keys on the operating panel of button box, which are icons of

button (alt text UP), button (alt text SW) and (alt text DOWN).

Button Box and Operating Panel

Normal Operation

○ On/Off

Hold button (SW) long, the meter is powered on and into normal operation, and

it provides the controller with power supply. Under normal operating status, hold
button (SW) long, the meter is powered off, meanwhile to shutdown the power supply of

controllers. When the vehicle is stopped and without any button operation on the

ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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meter for five minutes, the meter will automatically shut down, and the power supply
of the electric vehicle will be powered off. In power off mode, the power consumption of

the meter and controller is zero.

○ Display Interface

Display 1：

The meter is startup to enter display 1.

Display 1

The followings are shown on display 1.

Battery Capacity Indicator Single Trip Time (TM) Display

Power Assist Ratio Gear (ASSIST) Real-time Trip Speed (Km/H)

Single Trip Distance 6Km/H Power Assist Function

ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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Motor Operation Power Environment Temperature

Backlights and Headlights Status Brake Status

Cruise Function (CRUISE) Motor Running Temperature

Display 2：

In display 1, hold button (SW) shortly to enter display 2.

Display 2

The followings are shown on display 2:

Total Trip Time (TTM) Total Trip Distance (ODO)

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Single Average Speed (AVS) Motor Operating Temperature

In the riding mode after 5 seconds, display 2 automatically returns to display 1.
In display 1, the original motor power is replaced by motor running temperature as is
shown in Figure.

Display 3：

In display 2, hold button (SW) shortly to enter display 3.

Display 3

The followings are shown on display 3.

Single Maximum Speed (MXS) Real-time Voltage (VOL)

In the riding mode after 5 seconds, single maximum speed will automatically
return to real-time trip speed (Km/H) as shown in the icon.

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In display 3, hold button (SW) shortly again to enter display 1.

In each display interface, if you hold button (SW) long, the meter will be

powered-off together with that of the controller.

○ Display of turned on handlebar

Rotate the handlebar under normal operating of the meter, the display interface shows
the sign of turned-on handlebar, see the Figure below. The sign will be off automatically
after about five seconds.

○ Display of power-assist startup

The meter is driving with power-assist under normal operating conditions, the display
interface flashes the power-assist startup sign (ASSIST) as shown in the figure. The sign
will be off automatically after about five seconds.