SCIWIL SW900-VA User manual

USERS GUIDE
SW900-VA
No.：
Name：
SW900VA
Issued on：
27th May, 2023
Version:
A/0
Written By: Zhang Pei Rev.：Liu Jian Apprv.：Luo Zhenrong
Changzhou Sciwil E-Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: [phone]
Page 1 of 14

Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
Contents
Introduction .................................................................................................................................................. 1
1. Product Name and Model .................................................................................................................. 2
2. Specifications .......................................................................................................................................... 2
3. Exterior Look and Size ......................................................................................................................... 2
4. Cable Connection ...................................................................................................................................3
5. Assembly .................................................................................................................................................. 4
6. Functions .................................................................................................................................................. 4
7. Operation Guide .................................................................................................................................... 5
7.1 Riding Interface ............................................................................................................................. 5
7.2 Setting Interface ........................................................................................................................... 6
7.3 Error Report Interface ................................................................................................................. 6
7.4 Key Pad ........................................................................................................................................... 6
8. General Operations .............................................................................................................................. 7
8.1 Switch On/Off ............................................................................................................................... 7
8.2 Assist Level .................................................................................................................................... 7
8.3 Interface Switching...................................................................................................................... 7
8.3.1 Speed Switching .............................................................................................................. 9
8.3.2 Distance Switching ......................................................................................................... 9
8.4 Front Light On/Off ..................................................................................................................... 9
8.5 6km/h Walk Assist Mode ........................................................................................................ 9
9Introduction of Setting Interface .................................................................................................10
10. Settings ..................................................................................................................................................10
10.0Factory Reset （optional）..................................................................................................... 10

Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
10.1 Backlight Brightness .............................................................................................................. 10
10.2 System Unit ............................................................................................................................. 10
10.3 Voltage Level ........................................................................................................................... 10
10.4 Auto-Off Interval .................................................................................................................... 10
10.5 Assist Level Range ................................................................................................................. 11
10.6 Wheel Size ................................................................................................................................ 11
10.7 Magnet Steel Number for Speed Test ........................................................................... 11
10.8 Speed Limit .............................................................................................................................. 11
10.9 Start Mode ............................................................................................................................... 11
10.10 Drive Mode ........................................................................................................................... 11
10.11 PAS Sensor Type ................................................................................................................. 11
10.12 PAS Start Strength ............................................................................................................. 11
10.13 Magnet Steel ....................................................................................................................... 11
10.14 Controller Current Limit .................................................................................................. 11
10.15 Display Low Voltage Level ............................................................................................. 11
10.16 Clear Distance .................................................................................................................... 12
10.17 Cruise (optional) ................................................................................................................ 12
11. Error Code ........................................................................................................................................ 12
12. Serial Code ....................................................................................................................................... 13
13. Safety Notes .................................................................................................................................... 14
14. Quality and Warranty .................................................................................................................. 15
15. Version ............................................................................................................................................... 15

1
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
Introduction
Congratulations on purchasing your e-bike smart display. Before use, please read
through this manual. It is important to acknowledge all the
WARNINGS, SAFETY
NOTES AND INSTRUCTIONS
. This manual will walk you through assembly, settings
and operations of Sciwil display products in easy steps, to facilitate operations on
your e-bike.

2
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
1. Product Name and Model
Product Name: E-Bike Display
Product Model: SW-900
2. Specifications
① Working Voltage: DC 24V/36V/48V/52V/60V/72V
②
Rated Working Current: 12mA
③
Leakage current: <1uA
④
Screen Size: 3.6 ” LCD
⑤
Communication Type: UART (by default)
⑥
Working Temperature: -20°C ~ 70°C
⑦
Storage Temperature: -30°C ~ 80°C
⑧
Waterproof Rating: IPX6
3. Exterior Look and Size

3
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
4. Cable Connection
Display to Controller Controller to Display Controller Connector
Waterproof Type (BMING) Waterproof Type (BMING) Regular Type

4
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
Standard Cable Connector Diagram
5. Assembly
① Open the holder ring/rubber spacer of the display and fix the display on the
handlebar, adjust it to a proper facing angle. Use a M3 Hex Wrench to fix and
tighten the screws. Standard fixing torque: 0.8N·m.
*Damage due to extra fixing torque is not covered by warranty.
② Make sure your e-bike is powered off, then plug the connector on the display to
the connector on the controller (bus) to finish standard assembly.
6. Functions
①Simple key pad for easy & clear operation
②Boot password (optional)
③System unit switch (km/h or mph)
④Speed display：
real-time speed (SPEED), max speed (MAX), average speed (AVG)
⑤Assist Level Control
⑥Battery indication: battery capacity, low voltage indication, BMS info display
⑦Front light indication: front light status supported by controller
Sequence No. Wire Color Functions
1 Red（VCC）Display Power Cable
2 Blue（K）Controller Power Cable
3 Black（GND）Display Ground Cable
4 Green（RX）Display Data Receiving Wire
5 Yellow（TX）Display Data Sending Wire

5
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
⑧Distance：single-trip distance (TRIP), total travel distance (ODO)
⑨Riding Time: TRIP TIME
⑩Communication port connection: for system maintenance and specs settings
⑪Walk assist mode
⑫Error code indication
7. Operation Guide
7.1 Riding Interface
①Real-Time Speed (RT SPEED)：current riding speed
②Average Speed (AVG SPEED)：average riding speed
③Maximum Speed (MAX SPEED)：the max speed during ride
④Total Travel Distance (ODO)：total riding distance, max value 99999.9
⑤Assist Level and Walk Mode：Assist Level 3/5/9 levels, can be changed.

6
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
⑥Current Speed and Unit：current riding speed, unit: km/h or mph
⑦Single-Trip Distance and Unit：with accuracy of 0.1，max value 99999.9
⑧Battery Indication：the current battery level
⑨Front Light Indication：shows icon when the front light is turned on by display
⑩Power Indication：real-time motor output power
7.2 Setting Interface
7.3 Error Report Interface
7.4 Key Pad

7
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
Function/Mode：
Up/Plus：
Down/Minus：
8. General Operations
8.1 Switch On/Off
Keep the display connected with controller, press and hold Mode for
2s to turn on the display. The display will show complete interface first
before entering into riding interface.
When the display is on, press and hold Mode for 2s to turn off the
display.
The display will automatically turn off if no operation happened within
5min (the auto-off interval can be adjusted in the Settings interface).
8.2 Assist Level
Press Up or Down to toggle assist levels. Generally, there are 3/5/9
levels available. The display shows 1 as default start level, level 0 means
no pedal assist output. (the selection interface of assist level see below)

8
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
Level0Level1Level2
Level3 Level4 Level5
Walk Assist Mode
8.3 Interface Switching
Press Mode to switch display info among single-trip distance, riding
time, total distance. Toggle items: single-trip distance (TRIP)-> riding time
(TRIP TIME) -> total distance (ODO).
Mode switching interface as follows:

9
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
8.3.1 Speed Switching
Press and hold Mode and Down to switch between Average Speed
and Max Speed. Toggle items: Current Speed -> Average Speed (AVG) ->
Max Speed (MAX).
Speed switching interface as follows:
8.3.2 Distance Switching
8.4 Front Light On/Off
For display-controlled front light, press and hold Up for 1s and the
front light will be on and the dipped beam icon will be shown in the riding
interface. Press and hold Up for 1s the front light will be off, the dipped
beam light icon is also off.
8.5 6km/h Walk Assist Mode
Press and hold Down for 2s to enter 6km/h walk assist mode, the current
speed shows in the Assist Level section. Release Down to exit walk assist
mode. Walk mode switching interface as follow (under walk mode).

10
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
*This function may not be supported by some controllers.
9. Introduction of Setting Interface
Introduction of Setting Operations
1. Press and hold Up and Down together for 2s to enter the settings
interface. You may set Working Voltage, Wheel Size (inch), Magnetic Steel
Number, Speed Limit ect. Please refer to Settings P01-P17 for parameters
available.
Under the setting interface, you may press Up and Down to
increase/decrease the setting value. The value will blink after being modified. Press
Mode to switch to the next item and save the previous changes automatically.
2. Press and hold Up and Down together for 2s again to save the adjusted
value and exit the settings interface. Otherwise system will automatically exit and
save values after 10 seconds.
10. Settings
P01: Backlight Brightness (1: darkest; 3: brightest)
P02: Mileage Unit (0: km; 1: mile)
P03: Voltage Class (24V / 36V / 48V / 60V / 72V )
P04: Auto-Off Time
(0: never, other value means time interval for display auto-off) Unit: minute

11
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
P05: Pedal Assist Level
0/3 Gear Mode: Gear 1-2V, Gear 2-3V, Gear 3-4V
1/5 Gear Mode: Gear 1-2V, Gear 2-2.5V, Gear 3-4V, Gear 4-3.5V, Gear 5-4V
P06: Wheel Size (Unit: inch Precision: 0.1)
P07: Motor Magnets Number (for Speed Test; Range: 1-100)
P08: Speed Limit Range: 0-50km/h, no speed limit if set to 50)
1. Communications status (controller-controlled)
The driving speed will be kept constant as the limited value.
Error Value: ±1km/h (applicable to both the PAS/throttle mode)
Note: The above-mentioned values are measured by metric unit (kilometers).
When the measuring unit is set to imperial unit (mile), the speed
displayed on the panel will be automatically switched to corresponding
imperial unit, however the speed limit value in the imperial unit interface
won’t change accordingly.
P09: Direct Start / Kick-to-Start Setting
0: Direct Start
1: Kick-to-Start
P10: Drive Mode Setting
0: Pedal Assist – The specific gear of the assist drive decides the assist power
value. In this status the throttle does not work.
1: Electric Drive – The vehicle is driven by the throttle. In this status the power
gear does not work.
2: Pedal Assist + Electric Drive – Electric drive does not work in direct-start status.
P11: Pedal Assist Sensitivity (Range: 1-24)
P12: Pedal Assist Starting Intensity (Range: 0-5)
P13: Magnets Number in Pedal Assist Sensor (5 / 8 / 12pcs)
P14: Current Limit Value (12A by default; Range: 1-20A)
P15: Unspecified

12
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
P16: ODO Clearance
Press and hold the up key for 5 seconds and ODO distance will be cleared.
P17: Cruise (0: without cruise function, 1: with cruise function)
11. Error Code
The display can report error codes of the electric vehicle. Error codes will be shown
when the display detects corresponding error/failure. The interface is as follows:
Error Code Table
Error Code (decimal)
Status
Note
E00 Normal
E03 Brake Engaged
E05 Throttle Failure
E06 Low Voltage Protection
E07 Over Voltage Protection
E08 Motor Hall Signal Error
E09 Motor Phase Error
E16 Controller Error
E23 Front Light Error
E27 Controller Over Current Error
E30 Communications Error

13
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
12. Serial Code
Each Sciwil display product bears a unique Serial Code on the back shell
(as shown in the photo below)：192 2 1 210603011
Explanation to the above Serial Code:
192：Customer Code
2：Protocol Code
1：Program can be overridden（0 means can not be overridden）
210603011：P.O. (purchase order number)

- 14
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
13. Safety Notes
PLEASE TAKE CAUTION WHEN USE，DO NOT PLUG OR UNPLUG THE DISPLAY WHILE
YOUR E-BIKE IS POWERED ON.
AVOID CLASHES OR BUMPS TO THE DISPLAY.
AVOID USING IN HEAVY RAINS, SNOWS OR LONG EXPOSURE TO STRONG
SUNLIGHT. DO NOT TEAR THE WATER-PROOF FILM ON THE SURFACE OF THE
SCREEN, OTHERWISE THE WATER-TIGHT PERFORMANCE OF THE PRODUCT MAY
BE DEGRADED.
DO NOT PLUG OR UNPLUG THE DISPLAY WHILE THE SYSTEM IS POWERED ON.
UNAUTHORIZED ADJUSTMENT TO DEFAULT SETTINGS IS NOT SUGGESTED,
OTHERWISE NORMAL USE OF YOUR E-BIKE CAN NOT BE GUARANTEED.
WHEN THE DISPLAY PRODUCT DOES NOT WORK PROPERLY, PLEASE SEND THE
IT FOR AUTHORIZED REPAIR IN TIME.

- 15
Changzhou Sciwil E-
Mobility Technology Co., Ltd.
9th Huashan Road, Changzhou, Jiangsu, China- 213022
Fax: [phone] Tel: +86 519-
85600675
14. Quality and Warranty
8.1 Warranty Term
In compliance with local laws, Sciwil provides limited warranty period covering 24
months after the date of manufacturing (as indicated by the serial number), applies
to quality issues during normal operations.
The limited warranty shall not be transferred to a third party other than as specified
in the agreement with Sciwil.
Other situations may be covered, depending on the agreement between Sciwil and
the buyer.
8.2 Warranty Exclusions:
1. Sciwil products that have been opened, modified or repaired without
authorization.
2. Damage on the connectors.
3. Damage to the surface after leaving factory, including shell, screen, buttons, or
other appearance parts.
4. Damage to wiring and cables after leaving factory, including breaks and exterior
scratch.
5. Damage or loss due to force majeure (e.g. fire or earthquake) or natural disaster
(e.g. lightening).
6. Out of the warranty period.
15. Version
This display user manual is in compliance with the general software version (A/0) of
Changzhou Sciwil E-Mobility Technology Co., Ltd. There are chances that display
products on some e-bikes may have a different software version, which should be
subject to the actual version in use.
13.