BESV SMALO LX2 User manual

SMALO LX2/PX2
HMI User Manual

SMALO LX2/PX2 HMI User Manual
Introduction 1 |
CONTENTS
Introduction .............................................................................................................................. 2
Manufacturer Information.....................................................................................................................2
Product Description.................................................................................................................................2
Support Information................................................................................................................................2
Copyright Information............................................................................................................................2
SMALO’s HMI.............................................................................................................................. 3
HMI Guide....................................................................................................................................................3
How to Power ON/OFF .............................................................................................................................3
Detailed Icon Explanations....................................................................................................................4
Battery Capacity...............................................................................................................................4
USB Type-C Charger Port ......................................................................................................................4
Additional Useful Information ............................................................................................... 6
Disposal and recycling Information...................................................................................................6
Troubleshooting....................................................................................................................... 7
Warning Codes .........................................................................................................................................7
Error Codes.................................................................................................................................................9
Safety Information..................................................................................................................14
FCC compliance statement.................................................................................................14
Specifications..........................................................................................................................15

SMALO LX2/PX2 HMI User Manual
Introduction 2 |
Introduction
Manufacturer Information
Darad Innovation Corporation is a company located in Taiwan. We are committed to
developing products that feature innovative ideas and structures.
Product Description
Product Description:
Stem Integrated HMI
Trademark:
SMALO
Type Designation:
60.Y2XHM.001 / 60.Y3BHM.001
Support Information
Whenever you need professional support, please don’t hesitate to contact us!
E-mail：[e-mail]
Headquarter’s Telephone No.: [phone]
Headquarter’s Address: 1 F., No. 167, Shanying Rd., Guishan Dist., Taoyuan City 333426,
Taiwan (R.O.C.)
Copyright Information
Copyright © 2023 Darad Innovation Corp. All rights reserved.
No part or all of the content of this user manual may be used, modified, reproduced,
transformed, distributed, published, translated, publicly displayed or distributed in any
way to any other computer, server, website, media related to publication or any third
party without the company's prior written consent.

SMALO LX2/PX2 HMI User Manual
SMALO’s HMI 3 |
SMALO’s HMI
HMI Guide
How to Power ON/OFF
Typically, the HMI turns on when you turn on the e-bike’s power. (The figure below shows
how to turn on SMALO LX2’s power. SMALO PX2 can be powered on the same way, with the
power button at a similar location—top tube.)

SMALO LX2/PX2 HMI User Manual
SMALO’s HMI 4 |
Detailed Icon Explanations
Battery Capacity
81%-100%
61%-80%
41%-60%
21%-40%
11%-20%
<10%
Indicates that the battery level is almost at 0% and will be turning OFF
power shortly.
［Note］Orange color indicates blinking.
USB Type-C Charger Port
The USB Type-C Charger Port is water-resistant.

SMALO LX2/PX2 HMI User Manual
SMALO’s HMI 5 |
Caution
To avoid electric shock and damage to the e-bike, HMI, or your device, do not
plug in any device while the charger port and/or the charging cable plug is
wet.
You should still ensure that the charger port on the HMI and charger plug for your
rechargeable device are dry and clean before use.

SMALO LX2/PX2 HMI User Manual
Additional Useful Information 6 |
Additional Useful Information
Disposal and recycling Information
In the future, when this product reaches its end of life or when you need to dispose of it for
any reason, please take note of the following:
Important Information
•E-Bike electronic components shall be disposed of separately from
household waste. Please recycle according to local laws and regulations.
Environmental laws and guidelines vary across the globe. Please always check your local
laws and guidelines before recycling.

SMALO LX2/PX2 HMI User Manual
Troubleshooting 7 |
Troubleshooting
Warning Codes
Component
Code
Description
User Action
Controller
(1~16)
W01
Unstable communication
between the controller and the
battery
If the battery is removable, please turn
off the power, reinstall the battery, then
turn on the system again.
If the warning persists, please contact
our service center.
W02
Abnormalities in motion sensor
communication
Please restart the system; if the warning
persists, please contact our service
center.
W03
Limited assistance due to
overheated controller
The system still functions, but the power
assistance output may be limited.
You may continue to use the system; but
if possible, turn off the asstance and
allow the system to cool down for at
least 30 minutes. If this warning persists
after 2 hours, please contact our service
center.
W04
Limited assistance due to
overheated motor
The system still functions, but the power
assistance output may be limited.
You may continue to use the system; but
if possible, turn off the asstance and
allow the system to cool down for at
least 30 minutes. If this warning persists
after 2 hours, please contact our service
center.
HMI
(9~16)
W09
USB short circuit
Please replace the USB cable, and then
restart the system. If the problem
persists, please contact our service
center.
VCU
(17~32)
W17
Unable to turn on the IOT
module
If the warning persists, please contact
our service center.
W18
IOT module cannot retrieve SIM
card information
If the warning persists, please contact
our service center.
W19
IOT authentication error
If the warning persists, please contact
our service center.

SMALO LX2/PX2 HMI User Manual
Troubleshooting 8 |
W25
Abnormal USB power supply
Turn off the power and remove cable
and rechargeable device. After turning
on the power again, please try changing
the USB cable and the rechargeable
device. Cross check to verify which has
failed. If the problem persists, please
contact our service center. (The device
to be recharged is suggested to be
Bluetooth BC 1.2 compliant or above in
order to be operate successfully.)
HMI
(33~48)
W33
Abnormal reading in light
sensor
Please restart the system. If the warning
persists, please contact our service
center.
W34
Controller Bike ID
authentication failed
Please restart the system. If the warning
persists, please contact our service
center.
W35
VCU Bike ID authentication
failed
Please restart the system. If the warning
persists, please contact our service
center.
W36
Electric lock Bike ID
authentication failed
Please restart the system. If the warning
persists, please contact our service
center.
W37
Electric shifter Bike ID
authentication failed
Please restart the system. If the warning
persists, please contact our service
center.
W41
The controller is stuck in
bootloader mode
Please update controller's firmware, if the
warning persists, please contact our
service center.
W42
The HMI is stuck in bootloader
mode
Please update HMI's firmware, if the
warning persists, please contact our
service center.
W43
The VCU is stuck in bootloader
mode
Please update VCU's firmware, if the
warning persists, please contact our
service center.
W44
The electric lock is stuck in
bootloader mode
Please update electric lock's firmware, if
the warning persists, please contact our
service center.
W45
The electric shifter is stuck in
bootloader mode
Please update electric shifter's firmware,
if the warning persists, please contact
our service center.
E-Lock
(49~56)
W49
Abnormal Hall sensor signal in
the electric lock
Please first ignore W49 and unlock the
bike. After successfully unlocking, please
check if the warning has been resolved. If
the problem persists, please contact our
service center.

SMALO LX2/PX2 HMI User Manual
Troubleshooting 9 |
Error Codes
Components
Code
Description
User Action
Controller
(1~31)
E01
Motor stall is detected
Please restart the system. If the error
persists, please contact our service
center.
E02
Speed sensor error
Please restart the system. If the error
persists, please contact our service
center.
E03
MCU exception
If the battery is removable, please
turn off the power, reinstall the
battery, then turn on the system
again.
If the error persists, please contact
our service center.
E04
Communication fails between
controller and battery while
turning on power
If the battery is removable, please
turn off the power, reinstall the
battery, then turn on the system
again.
If the error persists, please contact
our service center.
E05
Motor is not running smoothly
If it happens while the bike is
travelling on more challenging
roads, it should be the bike's
protective measure; if not, and it
happens frequently, please contact
our service center.
E06
Battery reports error
Please restart the system. If the error
persists, please contact our service
center.
E07
Torque value error
Please restart the system. If the error
persists, please contact our service
center.
E08
Abnormal starting torque value
Please recall if anyone was stepping
on the pedals during the process of
turning on the power. If so, this is a
protective measure of the e-bike to
provent unintended acceleration.
The e-bike resumes to normal
operation after error code
disappears. (Please remember not
to step on pedals when turning on
the power.) If the error persists,
please contact our service center.

SMALO LX2/PX2 HMI User Manual
Troubleshooting 10 |
E09
Controller is overheating
It is the bike's protective measure
due to challenging
riding/environmental conditions.
Please turn off the system and wait
for at least 60 minutes to allow
system to cool down. Afterwards,
turn on the system; if the error
persists, please contact our service
center.
E10
Overvoltage in the controller
Please restart the system. If the error
persists, please contact our service
center.
E11
Undervoltage in the controller
Please restart the system. If the error
persists, please contact our service
center.
E12
Overcurrent in the controller
Please restart the system. If the error
persists, please contact our service
center.
E13
Battery fails to discharge
Please restart the system. If the error
persists, please contact our service
center.
E14
Motor is overheating
It is the bike's protective measure
due to challenging
riding/environmental conditions.
Please turn off the system and wait
for at least 60 minutes to allow
system to cool down. Afterwards,
turn on the system; if the error
persists, please contact our service
center.
E15
Power button signal error
Please restart the system. If the error
persists, please contact our service
center.
E16
Motor hall sensor signal error
Please restart the system. If the error
persists, please contact our service
center.
E17
Driver IC communication error
Please restart the system. If the error
persists, please contact our service
center.
E18
Driver IC function error
Please restart the system. If the error
persists, please contact our service
center.
E19
Driver IC signal error
Please restart the system. If the error
persists, please contact our service
center.

SMALO LX2/PX2 HMI User Manual
Troubleshooting 11 |
E-Lock
(32~39)
E32
Undervoltage in the electric lock
Use the correct charger to charge to
full capacity, and check if the error is
resolved. If not, please contact our
service center.
E33
Electric lock motor operation
timed out
If the error persists, please contact
our service center.
E-Shift
(40~48)
E40
Overcurrent in the electric shifter
Please restart the system. If the error
persists, please contact our service
center.
E41
Electric shifter motor is
overheating
Please restart the system. If the error
persists, please contact our service
center.
E42
Undervoltage in the electric shifter
Driver IC
Please restart the system. If the error
persists, please contact our service
center.
E43
Electric shifter operation timed out
Please restart the system. If the error
persists, please contact our service
center.
E44
Electric shifter motor stalled
Please restart the system. If the error
persists, please contact our service
center.
VCU
(49~55)
E49
VCU battery not detected
If the error persists, please contact
our service center.
E50
E-bike battery cannot be turned
on
Use the correct charger to charge to
full capacity, and check if the error is
resolved. If not, please contact our
service center.
E51
VCU motion sensor
communication error
Please restart the system. If the error
persists, please contact our service
center.
E52
Power button signal error
Please restart the system. If the error
persists, please contact our service
center.
E53
VCU cannot detect main e-bike
battery
Please turn off the system and turn it
on again. If the problem still occurs,
please contact with service center.
HMI
(56~64)
E56
Initial HMI connection failed
Please restart the system. If the error
persists, please contact our service
center.
E57
Communication error between
controller and HMI
Please restart the system. If the error
persists, please contact our service
center.
E58
"Check-value" error between
controller and HMI
Please contact our service center.
E59
Bluetooth initialization failed
If the error persists, please contact
our service center.

SMALO LX2/PX2 HMI User Manual
Troubleshooting 12 |
E60
HMI button signal error (Analog
type)
If the error persists, please contact
our service center.
E61
HMI button signal error (Digital
type)
If the error persists, please contact
our service center.
E64
Passcode error
Please enter the passcode again. If
you have forgotten it, you can use
the app to change the passcode.
Communi-
cation
(65~80)
E65
Communication error between
controller and electric shifter
Please restart the system. If the error
persists, please contact our service
center.
E66
Communication error between
controller and electric lock
Please restart the system. If the error
persists, please contact our service
center.
E67
Communication error between
controller and VCU
Please restart the system. If the error
persists, please contact our service
center.
E68
Communication error between
HMI and battery
Please restart the system. If the error
persists, please contact our service
center.
E69
Communication error between
HMI and electric shifter
Please restart the system. If the error
persists, please contact our service
center.
E70
Communication error between
HMI and electric lock
Please restart the system. If the error
persists, please contact our service
center.
E71
Communication error between
HMI and VCU
Please restart the system. If the error
persists, please contact our service
center.
E72
Communication error between
VCU and battery
Please restart the system. If the error
persists, please contact our service
center.
E73
Communication error between
VCU and electric shifter
Please restart the system. If the error
persists, please contact our service
center.
E74
Communication error between
VCU and electric lock
Please restart the system. If the error
persists, please contact our service
center.
Battery
(81~98)
E81
Undervoltage (UV)
Please restart the system. If the error
persists, please contact our service
center.
E82
Open Wire Protection Error for
Battery Circuit (Open Wire)
Please restart the system. If the error
persists, please contact our service
center.
E83
Battery Cell Unbalance (CU)
Protection Error
Please restart the system. If the error
persists, please contact our service
center.

SMALO LX2/PX2 HMI User Manual
Troubleshooting 13 |
E84
Battery Over Current Charge
(OCC) Protection
Please restart the system. If the error
persists, please contact our service
center.
E85
AFE Fault Protection Error for
Battery
Please restart the system. If the error
persists, please contact our service
center.
E86
Permanent failure (PF)
Please restart the system. If the error
persists, please contact our service
center.
E87
Short current (SC)
Please restart the system. If the error
persists, please contact our service
center.
E88
SW Over discharge current 1
(ODC1)
Please restart the system. If the error
persists, please contact our service
center.
E89
SW Over discharge current 2
(ODC2)
Please restart the system. If the error
persists, please contact our service
center.
E90
SW Over charge current 2 (OCC2)
Please restart the system. If the error
persists, please contact our service
center.
E91
Pre-charge timeout (PCTO)
Please restart the system. If the error
persists, please contact our service
center.
E92
Over voltage (OV)
Please restart the system. If the error
persists, please contact our service
center.
E93
Discharge overheat (DOH)
Please restart the system. If the error
persists, please contact our service
center.
E94
2nd thermistor overheat (FOH)
Please restart the system. If the error
persists, please contact our service
center.
E95
Charge continue overheat (COH)
Please restart the system. If the error
persists, please contact our service
center.

SMALO LX2/PX2 HMI User Manual
Safety Information 14 |
Safety Information
FCC compliance statement
Warning: Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user authority to operate the equipment.
1. To comply with FCC RF exposure compliance requirements, a separation distance of
at least 20 cm must be maintained between the antenna of this device and all
persons.
2. This Transmitter must not be co-located or operating in conjunction with any
other antenna or transmitter
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications to this product not authorized by SMALO by BESV could void the
electromagnetic compatibility (EMC) and wireless compliance and negate your authority to
operate the product.
This product has demonstrated EMC compliance under conditions that included the use of
compliant peripheral devices and shielded cables between system components. It is
important that you use compliant peripheral devices and shielded cables between system
components to reduce the possibility of causing interference to radios, televisions, and other
electronic devices.

SMALO LX2/PX2 HMI User Manual
Specifications 15 |
Specifications
Item
Spec.
Model
HMI
Operating voltage
5 ± 0.1V
Rating power
consumption
a. with right switch:0.35W
b. without right switch: 0.25W
Max power consumption
a. with right switch: 0.8W
c. without right switch: 0.5W
Weight
a. with right switch: 115g
b. without right switch: 86.6g
Display type
LED Display
Output Information
Speed, Charge, SOC, Lock status, Error, Warning, BLE
Assistant Level
Smart Mode
Lighting sensor
Yes
BLE version
4.2 (2402~2480 MHz)
System communication
CAN-BUS (Baud rate 500kb)
USB Port
Type C, powered by VCU
ROHS
Conforms the ROHS of PTC