ELECTRIC BICYCLE LCD3 User Manual

ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

LCD Controller Users’ Manual

ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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
cover 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

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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

○ 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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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

○ 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));

◇ 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

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

compatible℉ Display Content
The display content is shown as follow.

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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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 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.

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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

○ 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

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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

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.

○ PAS Ratio (or Handlebar) Gear Switch

Under normal operation, hold button (UP) or button (DOWN) to
switch the power assist ratio (or handlebar) gear (ASSIST), changing motor output
power. Switching range is 1-5 gear (this can also be configured according to the
customer requirements), gear 1 is for the lowest power, and gear 5 is for the
highest power.

At every startup, the meter will automatically restore gear (this can also
be configured as required by users) when it was at last shut down. When the
power assist ratio is gear 0 zero, there’s no power assist function.

○ Power Assistant Push Function

Users can use 6Km/H power assist function when pushing vehicles. Hold

button (DOWN), the meter assist function logo ( ) flashes, the vehicle drives at the

speed

of no more than 6Km/h. Release button (DOWN), the assist function
will be revoked.

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ELECTRIC BICYCLE METER KT—LCD3 Product User Manual

○ Cruise Function

When C7 parameter setting is 1 (see C parameter setting), the meter turns on
cruise

function, hold button (DOWN) long to enter the cruise status when the
vehicle speed is more than 7 km/h, and the cruise function logo (CRUISE)
lights. Brake or hold any button to revoke cruise function.

○ Startup Backlights and Headlights

Hold button (UP) long, the meter turns on the backlights as well as the
vehicle headlights (the Controller should have headlights driving and output
functions), meter

backlighting and vehicle lights power logo ( ) light, hold button (UP) long
again to turn off backlights and vehicle headlights.

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