Ecran LCD menu basique
User handbook for KT_LCD exclusive apparatus of electric-aided bicycle
Your respected customers, to correctly operate the electric bicycle,
please read the handbook attentively, Comparing with other same type
product, the KT-LCD owns the following exclusive function.
1.1 Timing function. The timing function starts when the bicycle runs and
stops when the bicycle stops running, and equipped with single-time timing
and progressive time timing function.
1.2 Gear saving function. For the user convenience, the KT-LCD apparatus
will recover to the gear when closes.
1.3 Advanced setup function. use the advanced setup function, it is possible
to make the controllers matches all the serial motor, and reach the optimum
matching of the apparatus, controller and the motor ,and could also select the
optimum power-aided mode. This function is only usable to professional
2.1 Display under common running condition (Refer to illustration 1)
(Illustration 1 )
battery indicator，trip time(TM)，motor power ratio(ASSIST)，current
speed,trip distance (DST)，6Km/h assistant power mode, electrical system
2.2 Riding history data view (Refer to illustration 1)
total trip time(TTM)，odometer(ODO), maximum speed (MAX), , average
KT_LCD Apparatus panel is mounted with three buttons,
the centered button is marked with SW. The
upward arrow is marked with, and the downward arrow is marked with.
4. General operating
Press the button SW, then the apparatus enter the normal operating
condition, and the working power is supplied. Under the normal operating
condition, long-press the SW, the power supply will shutdown. When the
bicycle stops and no operation within five successive minutes, the apparatus
will automatically closed.(Under the closed condition, there is no power
consumption for the apparatus and the controller)
4.2 Change assistant power(or change gear)
Under normal operating condition, press button UP or DOWN to adjust
the assistant power or gear to change the outcoming power.The gear scope is
1¬5,with the gear 1 as the lowest power, the gear 5 as the highest
power.(Every time open the apparatus, the gear will recover to the setting
when closes last time)
It is possible to use the 6km/h assistant power when push the bicycle,
long-press the button DOWN, the push-aided indicator flashes, and the
bicycle runs at speed less than 6km/h. Release the DOWN button the
push-aided function will suspend
Long-press the button UP, the back lighting will start (if the controller has
been connected to the front light, the front light will start at the same time),
long-press the button UP again, then the back lighting will close (if the
controller has been connected to the front light, the front light will close at the
5.Trip data view
5.1Trip data under running condition
Under normal condition (non-setup condition), the timing indicator
displays the trip time, mile indicator displays the trip distance, the gear
indicator displays the gear grade, speed indictor displays the speed(Km/H or
5.2History trip data view
Short-press the button SW will enter the history trip data view function,
with TTM and ODO appears first. The user could press the button UP or
DOWN to view the maximum speed, average speed. Short-press the button
SW to exit the data view mode (or it will automatically exit after five minutes
6.Battery capacity indictor
6.1 Battery capacity indictor
The apparatus could automatically identify the rest battery capacity for
the specified 36 volt or 24 volt battery matching with the controller. When the
rest battery capacity is more than 70%, all the four sections will lighten up,
when the battery capacity decreases, the four sections will extinguish in turn,
when the rest battery is less than 15%,all the four sections will extinguish.
When the controller closes for the reason of power lack, the LCD battery
indicator will flash to show the battery capacity lack (indicating the closing
condition for the battery capacity lack).
7.1 User setup
User setup items: a .maximum speed; b. wheel diameter
selection(16-28inch); c. metric/English unit selection(MPH or Km/H, Mile or
Km); d. With the instruction of professional technician, the user could conduct
the advanced setup to make the motor, controller and apparatus reach the
7.2 Start and setup entering
Under the closing condition ,press the button SW it will start. After starts
press the button UP and DOWN at the same time(within five seconds) for
three seconds, will enter the LCD setup condition(the back light will lighten
up automatically when enter the setup condition. The back light will close
7.3Set the high speed limitation
After enter the setup condition, firstly set the speed limitation, when
releases from our factory the highest speed limitation is 25Km/h, this value
could be changed by press the button UP or DOWN, when the actual speed
becomes more than the limitation, the motor stops working to protect the
7.4 Wheel diameter setup
After adjustment of speed limitation parameter, press the button SW to
enter the wheel diameter setup. Select the corresponding diameter by the
button UP or DOWN to guarantee the accuracy of the displayed speed or
7.5Select the indicating unit (metric or English unit)
After adjustment of the wheel diameter, press the button SW to enter
selecting option of 􀃾metric or English unit􀃿, and press UP or DOWN to
choose the unit, the Km/H&MPH is available for the speed. The mile unit will
change between Mile and Km in accordance with the speed unit change.
7.6 Setup exit
After correctly set the three parameters hereinbefore, press the button
SW for 2 seconds to save the adjusted settings and exit from setup condition
and return to the operating condition.
8.Malfunction code illumination
8.1 Malfunction code
01_error abnormal turn signal;
02_error phase lack of motor;
03_error abnormal Hall signal of motor;
04_error abnormal torque sensor signal.
9.Appearance and dimension
(External dimension and cable terminal graph)
10.1 KT_LCD_V1.0 Version
10.2 Released on May,10th,2011.
Released by Suzhou Kunteng Electronics CO., Ltd
Ecran LCD menu avancé
KT_LCD Apparatus Advanced Configuration Options Function
KT_LCD apparatus advanced setup function is only usable to professional technician.Advanced option parameter：
P1_motor character parameter,P2_motor velocity signal pulse parameter,P3_Power-aided mode parameter, P4 is the
startup mode , P5 is the power monitoring mode.
1.Enter advanced setup interface
A.,The advanced setup is not accessible unless firstly enter the general setup menu(such as velocity-limitation
parameter, wheel diameter parameter, metric or English unit selection).
B.Press the button SW to stop the three common parameters from flashing.
C.Press the button UP and DOWN synchronously for 2 seconds to enter the advanced option setup interface.
2.Set advanced option parameter P1
P1 is motor character parameter, and equals to reduction ratio multiplied by rotor alnico number.,If decimal fraction
appears, round off first.,After enter the advanced setup interface, it is found that the parameter P1 flashes, you could use
the button UP and DOWN to adjust the P1.
3.Set advanced option parameter P2
P2 is motor velocity signal pulse parameter.After set the P1,short-press the button SW to set the parameter P2.If the
wheel rotates one time, the pulse equals one, then P2 is set as one ,if the wheel rotates one time, the pulse equals six, then
P2 is set as six. If the motor is not equipped with velocity signal outputting function, you could set the PS as 0.Attention:if
P2 is set as zero ,the following defect maybe appear ,when the motor stop rotating or the internal rotor rotates slower than
the external rotor, the velocity indicated on the apparatus may be incorrect.
4.Set advanced option parameter P3
The P3 default setting is zero, power-aided mode is five speedy grade. If the P3 is set as one, it indicates that the
power-aided mode is five-grade torque drive mode.Parameter should be determined according to the function of the
controller, the setting method is as same as described hereinbefore.
All the advanced option parameter setup finishes, long-press the button SW to save the settings and exit.
5. Set the Advanced Parameters P4
P4 is the startup mode of the switch-handle. P4 equals to 1, indicating a non-zero startup mode of the switch-handle
(that is to say the switch-handle can only be effective after the start of the pedal power). When P4 equals to 0, it means the
switch-handle is on zero startup mode, (that is to say the switch-handle can start the motor directly).
6. Set the Advanced Parameters P5
P5 is the power monitoring mode. P5 equals to 0, indicating the power monitor is under the mode of "immediate voltage".
In other word, it is the method to judge the battery power according to the immediate voltage of the battery. When P5 equals
to a specified parameter, the battery monitor is under the mode of "smart power" (the parameter is determined on the basis
of the battery characteristics, it is generally between 4-11 for the common 24V lithium,
and 5_15 for 36V lithium).
7. Parameter Saving
Press on SW key for long time to save and exit the condition of configuration
parameters at the same time after the adjustment of the configuration parameter.
8. Installation Method for Vehicle Speed Sensor
When the KT_LCD instrument matches the high-speed motor without signal for
speed output (with built-in clutch), it requires an external vehicle speed sensor. The
installation method of the external vehicle speed sensor refers to the right picture.
Note the relative position relationships of magnet and sensor. When the KT_LCD
instrument is connected to the external vehicle speed sensor, set the parameter of P