Techbikes ltd TBDZ02 Operating Manual

TBDZ02 LCD CONTROLLER

OPERATING MANUAL

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Specifications

Working voltage: DC 11V-60V
Max working current: 70mA(11V) 32mA(50V)
Display type: 21*4 segment LCD
Sampling:

• 1-12 pulses each circle of the wheel (Data come the from hall sensor in controller)

• 1 pulses each circle of the wheel(Data come from reed sensor on the front wheel)

Working temperature: -20°C to 50°C
Backlight: White LED
Brightness: 200cd/m2
Dimensions: 102.5mm×74.5mm×28mm
USB Charger Output: 5V, 700mA

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Installation

The controller LCD is designed to be installed in the middle of the handlebars above the stem.
Remove the two securing bolts from the clamps and stretch the clamps over the handlebars.
Rubber shims are provided for secruing the display to smaller diameter handlebars. Once the
correct shims are in place re-fit the securing bolts and tighten them until the display is secure (i.e.
until the display cannot be rotated easily). Note that doing the securing bolts up too tight could
damage the clamps.

LCD Functions

Speed Display

Shows current speed in either km/h or mil/h (user selectable)

Battery Indicator

Six horizontal segments show the current charge state of the battery (each segment represents
17% of the capacity of the battery). When the battery reaches 15% capacity the battery indicator
will appear empty and start to flash, indicating the the battery needs to be charged.

NOTE: When a high assist setting is used and the motor is under load the battery indicator may
drop suddenly, then recover when the motor is not under load. This is normal and is due to the
internal voltage drop in the battery and wiring at high current.

Trip Distance

Trip distance can be reset manually and is also reset when the controller is powered off.

Odometer

Shows the total distance travelled (odometer can not be reset). This is useful for servicing.

Movement Time

This is the total time for which the pedals have been turning. It can be reset manually and is also
reset when the controller is powered off.

Power Assist Level

The current power assist level is displayed on a bar graph to the left of the screen

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Backlight

The LCD has a backlight for use in low light levels. A lamp icon is displayed when the backlight is
on.

Wheel Diameter

The wheel diameter can be set from 8” to 28”. The default setting is 26”

Speed Sensor

The speed sensor type and number of pulses per wheel revolution can be adjusted if required. If
the speed sensor provided with the kit is used this setting should be left at the default value.

Diagnostic Code

If a fault is detected a spanner will appear in the lower left corner of the display and the diagnostic
code will be displayed where the speed normally appears. The diagnostic codes are explained at
the end of this manual.

USB Charging Output

A USB type-A outlet is provided on the LCD display. It can be used to charge devices such as mobile
phones. The output is 5V and a maximum current of 700mA can be supplied.

3

Operation and Settings

Plus Minus Mode Power

Powering the Controller On

Press and hold the power button for 2 seconds to turn the controller on. The controller can be powered off by
holding the power button for another 2 seconds. The controller will automatically power off if no activity is
detected for 5 minutes.

NOTE: The bike should always be at a standstill when the controller is powered on so that it can perform it's self­diagnostic. If you turn the controller on while you are riding the bike or if you have your feet on the pedals this
will probably put the controller into a fault state as it expects the reading from the torque sensor to be zero
during the self-diagnostic.

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Setting the Assist Level

There are four assist levels ( “ECO” “， TOUR” “， SPEED” and “TURBO”) and the power assist can also be turned
off. Press the plus button to increase the power assist level and the minus button to decrease the assist
level.

(no power assist) ECO TOUR SPEED TURBO

Setting the Display Mode

Press the information button to toggle through “ODO”, “TRIP”, “AVG” and “TIME” displays.

Advanced Settings

To enter the Advanced Menu, turn the display off and then press and hold and for three seconds. Now
press to toggle through the advanced options.

• “d1” - Set the wheel diameter of the bike. Default is 26”.

• “cc” - Increase “+”/decrease “-” the number of signal outputs from the speed sensor per

rotation. Default is 1.

• “km/h” - Select the units of speed by pressing “+”. Default is km/h.

• “6km/h” - Set the walking speed function on/off by pressing “+”. Default is Off

• “Sd” - Increase “+”/decrease “-” the maximum speed limit. Default is 25km/h.

• “A” - Default is 16.

• “m” - Select either European “EUR” or Japanese “JAP” mode by pressing “+”. Default is EUR.

• “25km/h” - Default is On.

4

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FUNCTIONS

Backlight kground lightv

With the system powered on push the power button momentarily to turn the backlight on. Push the power
button again to turn the backlight off.

Trip Distance (trip)

Shows the distance covered in the current trip.

Odometer

Shows the total distance covered. This is useful for servicing.

When on trip distance, press the button for 2 seconds to clear.

Movement Time (TIME)

Shows movement time.

Press and hold the button for 2 seconds to clear/reset.

Average Speed (AVG)

Shows the average speed (average speed=trip distance / movement time), speed resolution is 1km/h (mil/h), full
range is 99 km/h or 99mil/h.

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Power

Average power consumption in W*h.

Cons

Shows the average power in watts

Wheel diameter selection

Press button to select the wheel diameter using + and - buttons to adjust the wheel size from 8 to 28 inch, the
default value is 26 inch.

Speed sensor selectionpeed sensor selectio

Press button to “Speed sensor selection” using – and + buttons to select the number of pulses per wheel
revolution. The default is 1.

Speed units selection (km/h-mil/h)

Press button to enter the speed units. Use + button to switch between km/h and mil/h
default is km/h.

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Diagnostic code

If a fault is detected a spanner will appear in the lower right conrner of the display and the error code will be
displayed.

E02 = Motor hall sensor failure or Motor cable short circuit.
E03 = Controller failure.
E04 = Throttle failure.
E06 = Torque sensor fault. (NOTE: Often triggered if the controller is powered on

while the bicycle is being ridden)

E08 = Under voltage alarm.

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