E-BIKE

CENTRAL MOTOR DRIVE SYSTEM

(SYSTEM TYPE: BDS01)

USER’S GUIDE

Version: V1.0

SUZHOU BAFANG ELECTRIC MOTOR SCIENCE-TECHNOLOGY CO.,LTD

Continuously exceed customer expectations

Thanks for using Bafang products www.szbaf.com

Company Introduction

Suzhou Bafang Electric Motor Science- Technology Co., Ltd is located in Suzhou Industrial Park, at the center of Yangtze River Delta, endowed with convenient transportation for both international and domestic business. Bafang company was founded in 2003, which is a high-tech enterprise of electric drive system, combining design, R&D, manufacturing and sales.

We have more than 260 employees, more than 35 senior engineers in R & D department, be able to accept of various challenging projects. Our well-established quality control system, advanced motor and controller production, and testing equipment, as well as high-level R&D and testing center enable us to deliver high quality products consistently. Now our annual production capacity reaches 1,000,000 sets.

Your dream, our goal!

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System composition

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3

Catalog

Central motor

1.1 S cope of application and numbering rule------------5

1.3 Main technical parameters-------------------------------6

1.4 Installation diagram----------------------------------------6

1.5 Installation procedure-------------------------------------8

Display

2.1 Material and waterproof grade------------------------14

2

2.2 Dimension--------------------------------------------------14

2.3 Installation instruction-----------------------------------15

2.4 Button definition------------------------------------------16

2.5 Display Area-----------------------------------------------16

2.6 Power on---------------------------------------------------17

2.7 Adjust--------------------------------------------------------18

2.8 Parameter setting----------------------------------------21

2.9 Power off---------------------------------------------------23

2.10 Malfunction Code---------------------------------------23

3.1 Installation dimension---------------------------------25

System connection diagram 4

Notes 5

After service & warranty 6

4 System connection diagram---------------------------27

5 Notes---------------------------------------------------------28

6 After service & warranty-------------------------------29

Packing list 7

7 Packing list-------------------------------------------------30

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1 Central motor

★ Can be installed on standard bike frame easily.

★

High starting torque, Max torque≥80Nm, good performance on climbing.

★

Double clutch is used on drive unit, more safety.

★

Speed sensor and torque sensor can be applied, controller integrated.

★

High efficiency, low consumption, long travel mileage.

1.1 Scope of application and numbering rule

Countermark serial number on motor casing as following:

BBS01 36V 250W

15A 25km/h

13010001

1. “BBS01”: motor type(speed sensor)；”BBS02”: motor type(speed sensor with coaster brake)；”BBT": motor type (torque sensor)

2. “36V”: rated voltage; 250W: rated power.

3. “15A”: limited current, 25km/h: max speed.

4. “1301”: production date, produced in January of 2013.

5. “0001”: serial number.

1.2 Material and waterproof grade

Die-cast aluminum electrophoresis black treatment, working environment temperature:-25℃-55℃, waterproof grade: IP65.

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Voltage

Limit current

Limit speed

Motor weight

Chain wheel tooth

no-load value

1.3 Main technical parameters

Rated value

DC36V

15A

25KM/H

3.7KG

46T current

（ A） speed

（

RPM

）

Output power

（

W） speed

（

RPM

） efficiency

（ %） torq ue

（ N m） curre nt

（

A）

≤1.0 83±5 250 78±5 ≥80% ≥30 ≤9

Max value

MAX torque

≥80N.m

MAX efficiency

（

%）

≥80%

Above parameters as the default parameters, can be customized according to customer requirements.

1.4 Installation diagram

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7

left crank

Drive unit

Nut M33 nut screw 2x M6*12 fixing plate

Self-tapping screw 5 x ST3.9 screw 5 x M5*10 chain wheel right crank chain cover

1.5 Installation procedure

1. Open the package and take out the drive unit and accessories;

And check the specification whether it is correct.

2. Fix the chain wheel on drive unit with 5pcs screw M5*10, (see picture 1), then fix chain cover on chain wheel with 5pcs screw

ST3.9.

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higher surface

5 x M5*10 lower surface

Picture1

3. Fix the drive unit axle tube on frame bottom bracket (see picture

2,picture 3) drive unit axle tube

Picture 2

Left right

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Picture 3 ensure thread of axle tube extend bottom bracket more than 10mm

4.

The surface with teeth of fixing plate towards inside, then fix the plate on drive unit with 2pcs M6*10.(see picture 4,picture 5) the surface with teeth

2xM6 nut of fixing plate

Outside surface without teeth

Picture 4 Picture 5

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5. Hold the drive unit near to bicycle fork, force less than 5KG, tight 1st nut M33 onto axle tube with force:30-40N.m (see picture 6)

M33 nut

Picture 6

6.

Fix 2 nd

nut M33 onto axle tube, tightening force:30-40N.m(see picture

7)

M33 nut

Picture 7

7.

Fix the left crank on the bike with M8 inner hexagon screw. Tightening force:35-40N.m (see picture 8)

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M8 nut left crank

Picture 8

8.Fix the right crank on the bike with M8 inner hexagon screw. Tightening force:35-40N.m (see picture 9)

M8 nut

Picture 9 right crank

9.Connect all cables for battery, display, speed detecting sensor and so on (see picture 10-12)

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Water proof connector for battery

Water proof connector for display

Water proof connector for speed detecting sensor

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2 C950 Display

2.1 Material and waterproof grade

Display’s casing use black/silver ABS materials, display window use acrylic white transparent material.

Working temperature of display: - 20℃- 80℃.

Waterproof grade: IP65.

Ultrasonic is used for welding casing and display window.

2.2 Dimension (unit: mm)

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2.3 Installation instruction

Fix the display onto the handlebar and adjust to an appropriate visual angle, use a screw to fix the carrier onto bottom casing, then plug display connector with controller connectors, that’s all.

Bottom casing cable

Fixing slot

Fixing carrier cable

Fixing carrier

3.3 用户设置概述

M3 screw

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2.4 Button definition

C950 display is equipped with integrated buttons. The three buttons are installed on the left side. The shape and location is as below:

System power switch

M ode selection, together with for setting back light switch, speed, mileage switch

2.5 Display Area

Display area includes battery capacity, riding mode, riding speed, single riding distance, total riding distance, and malfunction code of the electronic control system. Display area is as below：

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Mode 1：walking assistant mode

Mode 2：economic mode

Mode 3：sports mode

Mode 4：power mode

2.6 Power on

First open the electric vehicle battery power.

Then press to open system power（display below black font when power on）

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press and choose favorite mode（refer to 2.7.1）

2.7 Adjustment

2.7.1 Mode selection

When e-bike power on, default mode is economic mode, press

0.5s to select mode, economic mode, sports mode and powerful mode will be cyclic in order as following:

economic mode

sports mode power mode

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2.7.2 Walking Assistant

Hold to enter walking assistant mode. The e-bike will go on at a uniform speed below 6 KM/H. Release , the e-bike goes back to previous state, interface is as below:

Walking assistant mode

Warning：walking assistant function can only be used when the user is pushing the e-bike. Please don’t use this function during riding.

2.7.3 Backlight turn On/Off

When the surrounding light is not enough or in the evening,turn on the backlight. Hold 0.5s to switch on the backlight. Hold 0.5s again to switch off the backlight.

2.7.4 Electric capacity display

When the battery capacity is overvoltage, the four battery segments are all lighted and the battery display frame will flash. When the

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battery capacity is normal, the four battery segments lighten according to actual capacity. When the battery is under voltage, four battery segments switch off and battery display frame will flash with the frequency of 1 HZ, to remind user to recharge battery immediately.

2.7.5 Speed and mileage switch

When power on, display shows the current speed automatically. Hold

3s switch to total distance. Hold the 3s again switch to single riding distance. Hold 3s again display will switch back to current speed. Do this in turns and interface is as below: current speed

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total distance single riding distance

2.8 Parameter setting

Parameter setting includes：wheel diameter setting(8inch～28inch) and battery voltage setting（24V、36V).（The display is set already, do not set it again except the user has special requirements.）

Put the power on，hold and together 3s to go the setting state， the interface is as below:

2.8.1 Wheel size setting

Hold 0.5s to go into the wheel size setting state, hold 0.5s to choose the right wheel size to make sure the speed and distance’s

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accuracy. Wheel size includes 08、10、12、14、16、18、20、22、

26、28，choose in turn，interface is as below：

“"1":wheel size setting mode

2.8.2 Battery voltage setting

"26":wheel size

Hold 0.5s to go to voltage setting interface, hold 0.5s to choose right voltage to make sure the display works normally. There are two options of 24V and 36V, choose it in turn, interface is as below:

"2":voltage setting mode

2.8.3 Single mileage reset

"36":battery voltage

Press 0.5s to go into the single riding distance setting interface, press 0.5s to clear the riding distance to zero, interface is as

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below:

"3":riding distance reset

2.8.4 Exit the setting state

In the state of parameter setting, hold and for 3s to save the current settings and exit the setting interface.

Attention: With no action for 5 seconds, it will exit the setting interface automatically, and the adjustment will not be saved.

2.9 Power off

Hold for 3 seconds to switch off display.

Power will be switch off automatically with no action of e-bike for 5 minutes.

Suggestion: Switch off the battery and storage it in a right way, if the e-bike won’t be used.

2.10 Malfunction Code

If any errors appeared in electronic control system, the display will show the error code automatically. For example:

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"11":

Temperature sensor inside of controller has problem

Note: The display can’t quit the malfunction code interface until the malfunction is solved. The e-bike can not work when it is in malfunction code display state.

meaning

3

4

0x04

0x05

Brake lever didn’t return to the location

Brake has problem

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8

10

11

12

13

14

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0x08

0x09

0x11

0x12

0x13

0X14

0x21

0x22

Motor hall sensor has problem

Motor phase wire has problem reached the protection temperature

Temperature sensor inside of controller has problem

Current sensor has problem

Temperature inside of battery is un-normal

Temperature sensor inside of battery has problem speed detect sensor inside of motor has problem

BMS communication has problem

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17

0x23

0x24 light has problem light sensor has problem

18 0x30 communication has problem

3 Speed detecting sensor

By measuring the wheel RPM, the signal is transferred to the controller, the speed and mileage will be showed on the display.

3.1 Dimension

3.2 Installation

1. Speed sensor component

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2. F ix the speed sensor on appropriate position (bottom fork is suggested) of frame by ribbon. tied by ribbon

3. Fix the magnet on spoke of rear wheel

Note: magnet's surface must be parallelized with sensor's surface

4. Adjust the distance between speed sensor and magnet within

5mm

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gap distance ≤ 5mm

fix the nut after adjust appropriate position

4 Connection diagram

Battery

Motor, controller, pedal sensor c) Display d) Throttle f) Battery g) Speed detecting sensor

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5 Notes

1.Should be stocked in a dry ventilated warehouse, do not be stocked in a humid, acidic and alkaline area, not coexist with magnetic object

2.Each connector inserted according to arrow to arrow

3.Avoid sharp objects impact on display

4.Avoid overload for long time when using

5.Avoid wading and soaking

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6 After service and warranty

Suzhou Bafang Electric Motor Science-Technology Co Ltd

(hereinafter to be referred as “Bafang”) warrants that the products bought from Bafang can be provided service freely if the products are non-conformities in material and workmanship within warranty period.

Timing and scope of warranty: Warranty period starts from date of

Ex-factory, motor is within 30 months, controller, display, sensor and other electric components is within 18 months.

Bafang limited warranty does not cover or apply to the following:

1) Damage, failure and/or loss caused by refitting, neglect, improper maintenance, competition or commercial purpose, misuse, abuse or accident;

2) Damage, failure and/or loss caused by shipping;

3) Damage, failure and/or loss caused by improper installation, adjusting or repairing.

4) Damage, failure and/or loss irrelevant to material and workmanship, e.g., failure to follow instructions by consumers；

5) Damage, failure and/or loss caused by product’s appearance and surface change which doesn’t affect its function.

6) Damage, failure and/or loss caused by unauthorized service or installation；

7) Damage, failure or loss caused by normal wear and tear.

Bafang reserves the right to repair the components or replace the components, and is only responsible for repairing or replacing of the products.

In case bike manufacturers or dealers encounter quality problems when using or selling Bafang products, they can report the purchase order number and products’ serial number to Bafang technology service department who makes sure that if the products are under warranty or not. If it is under warranty, Bafang will offer repair or replacement for free. If it is out of warranty, Bafang still can

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repair for customer, but the concerning material cost, labor cost, freight etc. will be paid by customer.

If you have Bafang components on complete bikes need to be repaired, please contact the bike manufacturer or dealer directly. If this warranty statement is against to Chinese current law, the Chinese law shall prevail. Bafang reserves the right to modify the terms without any announcing in advance.

7 Packing list

Two sets system per carton with packing list:

1.BBS01 motor 2sets

2.display 2sets

3.brake 2sets

4.EB-BUS 2pcs

5.fixing plate 2pcs

6.chain wheel and chain cover 2sets

7.crank 2sets

8.M5*10 nut 10pcs

9.M6*12 nut 4pcs

10.M33 nut 4pcs

11.ST 3.9 nut 10pcs

12.speed detecting sensor 2pcs

13.magnets 2pcs

14.specification 2pcs

Above components list is for reference only, it can be changed with different requirement.

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