Forehorse FEM2 User manual

LCD Display FEM2

User’s Manual

I

Text of Contents

1、Preface ·············································································1

2、Specification Data·································································1

3、Installation Instruction··························································1

4、User settings overview·························································1

5、Normal Display Area······························································2

6、Button definition ···································································2

7、Startup and shutdown····························································3

8、Assist Function·····································································3

9、Backlight turn on and off·························································3

10、Switch single milage/total milage············································3

11、Into general settings-km/mile system setting·····························3

12、Speed limit setting·······························································4

13、Backlight brightness setting···················································5

14、Into advanced settings··························································5

15、Wheel diameter setting······················································ ···5

16、Automatic power-off time setting··············································6

17、The total stall setting·····························································6

18、Fault code display································································7

19、Battery display·····································································7

20、Frequently asked questions and answers··································8

21、Commitment to quality and warranty·········································8

1

Dear User：

Please drive E-bike safely .The FEM2 instrument is one of the components to

operate an E-bike and to control cycling status. Please read instructions carefully

before using. Here we write the professional manual in order to make you

understand its materials, installation, setup, adjustment, maintenance and normal

use of the instrument clearly.

For your driving safety, before changing the settings, the first thing is to stop

before the relevant settings.

Supply

Voltage

36V/48V

Waterproof Grade

IP65

Working

Environment

-25℃-80℃

Shell Material

PC1414

Display Window

Material

white transparent

organic glass

Product Size

Dimension A 87.5mm

Dimension B 3.5”

Dimension C 59mm

Dimension D 15mm

Dimension E Φ22.2/25.4/31.5mm

Dimension F 90mm

Dimension G Φ22.2/25.4/31.5mm

Dimension H 51mm

Dimension I 38mm

1.About User’s Manual

2.Specification Data

2

1.Open the display package, and take out LCD display and its components.

2.Use the Allen key to open the back of display and lock button, then take out

the rubber gasket.

3.Place the rubber gasket to the middle of the handlebar, and then fix the LCD

display to the rubber gasket on the faucet, and lock it with the latch.

4.Fix the Key module on the side of e-bike left brake.

User settings are divided into general settings and advanced settings.

Normal setting items: km / mile system, the speed limit, the backlight

brightness.

Advanced setting items: wheel diameter, automatic power-off time, the total

number of stalls.

The FEM2 Instrument display contents are:

1.Battery display

2.Assist stall display

3.Cycling mileage display

4.The Mileage unit display

5.Speed unit display

6.Cycling speed display

7.Cycling mode display：Walking Assist Mode

Normal Mode

Rapid Cycling Mode

Speed Display Speed unit display

Battery Display Assist stall display

Mileage unit display

Cycling mode display Cycling mileage display

4.User Settings Overview

5.Normal Display Area

3.Installation Instruction

3

The FEM2 display instrument has a special and integrated button which

consists of three single buttons fixed on the left side of the instrument. Its shape

and position shown as below:

During the subsequent description, the up button called "MODE"; the middle

button called "+" ,and the bottom button called "-" instead.

Press "MODE" button for 3 seconds to start up. In the startup mode, press

"MODE" button for another 3 seconds to shut down.

Note: If more than four hours without the use of E-bike, please take off the

battery from the E-bike and have a reasonable storage.

In the power-on state, press "-" button for 3 sencond to open the assist

function, and assist mode will shut down when release "-" button.

In the power-on state, press "+" button for 3 seconds to turn on the backlight

and press the "+" button for another 3 seconds will shut down the backlight. If the

E-bike is equipped with front / rear headlights, headlights will turn on or off together

with the backlight.

9. Backlight turn on and off

8.Assist Mode

6.Button Definition

7.Startup and Shutdown

Button Mode

Button +

Button -

Button +

4

12.Speed Limit Setting

In the power-on state, press the "MODE" button to switch single /total milage.

Setting interface as shown below:

When started up,press the "+" button and the "-" button together for 3

seconds to enter the general setting mode, you will set the km / mile system setting

firstly, press "+" button or the "-" button to switch km / mile system. Setting interface

as shown below:

After setting km / mile system, press "MODE" button to enter the speed limit

setting, press "+" button to increase the speed limit and press "-" button to

decrease the speed limit. Setting range: 5-50Km / H; 3-31Mile / H. Setting interface

as shown below:

11.Into General Settings-km/mile System Setting

10.Switch Single Milage/Total Milage

5

Note: When the wheel speed reaches or exceeds the set value, the motor’s

output power will continue to attenuate. For cycling safety, it is recommended to set

the speed limit at 25Km / H and below.

After setting the speed limit , press "MODE" button to enter the backlight

brightness settings; press "+" button to increase the backlight brightness and press

"-" button to decrease the backlight brightness. Setting range: 1-9. Setting interface

as shown below:

Short press “mode button”once again to exit the General Setting.

When started up, press the "+" button and the "-" button for 2 seconds to enter

the general setting mode, release all buttons, then press the "+" button and the "-"

button together, and at the same time press "MODE "button 8 times to enter the

advanced settings.

14.Into Advanced Settings

13.Backlight Brightness Setting

6

16.Automatic Power-Off Time Setting

After entering the advanced setting,the first setting is the wheel diameter (Unit:

inch), press "+" button to increase the wheel diameter and press "-" button to

decrease the wheel diameter. Setting range: 8-32; Set Units: inches. Setting

interface as shown below:

After setting the wheel diameter, press "MODE" button to enter the auto

power- off time setting, press "+" button to increase the auto power-off time and

press "-" button to decrease the auto power-off time. Setting range: 0-60 min.

Number “0” means no automatically power off。

Setting interface as shown below:

15.Wheel Diameter Setting

7

After setting the automatic power-off time, press "MODE" button to enter the

total stall setting, press "+" button to increase the total number of stalls, and press

"-" button to decrease the total number of stalls, setting range: 0 -9. After setting the

total stall, press "MODE" button to exit the advanced settings, the FEM2 instrument

will automatically save settings. Setting interface as shown below:

Note: The total stall does not include the 0 stall and L. Such as: the total stall

set to 3, then the actual stalls are 0,1,2,3,L.

After setting , the instrument needs to restart, then the settings take effect.

when the E-bike electronic control system fails, the FEM2 instrument will

automatically display the fault code. The definition of the table and fault code

display interface as shown below:

18.Fault Code Display

17.The Total Stall Setting

8

Note: Only the fault is solved, the instrument can exit from the fault code

display . Turn off the power supply before the fault is solved.

The remaining battery capacity display interface as shown below:

﹤20% 20%-40% 40%-60% 60%-80% 80%-100%

Q: Why can not start up?

A: Please check the instrument and the controller connector contact reliability,

or the battery switch is turned on.

No.

Show

Definition

No.

Show

Definition

1

04

Turn to no homing

7

10

Reach the high temperature

protection point

2

05

Turn fault

8

11

Temperature sensor fault

3

06

Low voltage

protection

9

12

Current sensor fault

4

07

Over voltage

protection

10

21

Speeed sensor fault

5

08

Motor Hall singal

Line fault

11

22

Battery communication fault

6

09

Motor Phase line fault

12

30

Instrument communication

fault

19.Battery Display

20.Frequently Asked Questions and Answers

9

Q: How to solve the fault as the instrument shows?

A: Please self-troubleshooting refer to the fault code definition,if not please

contact the local dearer to solve.

If any product quality questions caused under normal use, during the warranty

period we will give limited warranty service.

Under the following conditions are not covered by the warranty:

1. Instruments have left the factory, any scratching and breakage.

2. The instrument is opened on their own.

3. Fails due to force majeure (such as fire, earthquake, etc.) or natural

disasters (such as lightning, etc.) caused .

4. exceed the warranty period

Warranty period: from the factory within 18 months.

21.Commitment To Quality and Warranty

Forehorse FEM2 User manual

Forehorse FEM2 User manual

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