Derby cycle Pedelec User manual

User manual Pedelec

1.
2.
3.
4.
5.
Battery with battery
status indicator
Battery lock
Pedal gear with motor unit
Control switch with
assistance operating switch
and battery status indicator
Charging station
Cautionary symbol: Indications
with this symbol warn of possible material
or environmental damages.
Danger symbol: Indications with this symbol
warn of possible bodily injury, in particular
due to greater danger of falling or other increased
risk of injury.
1
2
3
4
5
2

Changing the level of electronic power assistance
Power assistance
corresponds roughly
to pedal power
Power assistance is not available if:
L the pedalling power is too weak
L the battery light is blinking
L when riding at more than 24 km/h in 7th gear
L when riding at more than 18 km/h in 4th gear
L when riding at more than 14 km/h in 1st gear
Driving force (pedal power + electronic
power assistance)
Pedal force of the rider
Start Speed 15 km/h 24 km/h
Driving force
electronic power assistance
Power assistance
diminishes in steps
Power assistance
is zero (0)
Demontage des Akkus
Achtung
1. Den Akku festhalten und das Schloss
mit dem Schlüssel gegen den Uhrzeigersinn
öffnen
aus Sicherheitsgründen sollten Sie sich verge-
wissern, dass Sie den Schlüssel abgezogen haben
2. Kippen Sie den Akku leicht
auf die Seite.
3. Heben Sie den Akku mit beiden Händen
an und nehmen Sie ihn aus der Halterung
heraus.
Demontage des Akkus
Achtung
1. Den Akku festhalten und das Schloss
mit dem Schlüssel gegen den Uhrzeigersinn
öffnen
aus Sicherheitsgründen sollten Sie sich verge-
wissern, dass Sie den Schlüssel abgezogen haben
2. Kippen Sie den Akku leicht
auf die Seite.
3. Heben Sie den Akku mit beiden Händen
an und nehmen Sie ihn aus der Halterung
heraus.
Demontage des Akkus
Achtung
1. Den Akku festhalten und das Schloss
mit dem Schlüssel gegen den Uhrzeigersinn
öffnen
aus Sicherheitsgründen sollten Sie sich verge-
wissern, dass Sie den Schlüssel abgezogen haben
2. Kippen Sie den Akku leicht
auf die Seite.
3. Heben Sie den Akku mit beiden Händen
an und nehmen Sie ihn aus der Halterung
heraus.
Dear Customer:
You have decided in favour of a Pedelec (Pedal Electric Cycle) - a bicycle that is
equipped with an electric motor to give you additional assistance when riding.
Characteristics
1. With this bicycle you can make better progress in headwinds, when transporting
heavy loads or on steep slopes.
2. You can select the level of power assistance required according to the weight
of your load and/or the prevailing road conditions.
The intensity of the power assistance depends on your pedal power and the
level of assistance selected.
Before switching on the electric assistance system, please read the chapter “Charging
the battery”. The battery must be fully charged before the motor (for electronically
supported pedalling) is switched on.
Mode of operation and extent of electronic power assistance
As soon as you switch on the electric assistance system and begin pedalling,
electronic power assistance is available. The necessary pedal power reduces in
proportion to each increase in the level of assistance (see p. 6, Selection of
assistance level) by approximately 60%, 50%, or 30%.
Power assistance is not available if:
● the pedalling power is too weak
● the battery light is blinking
● when riding at more than 24 km/h in 7th gear
● when riding at more than 18 km/h in 4th gear
● when riding at more than 14 km/h in 1st gear
Charging the battery
The charging time given in this manual is the time that is necessary for charging after
the capacity of the battery has been used up. This is indicated by the blinking of the
battery charge status LED.
To avoid shortening the service life of the battery you should not charge the
battery longer than 48 hours.
Removing the battery
In order to charge the battery, you must remove it from the bicycle.
1. Hold the battery firmly and open the lock with
the key in an anti-clockwise direction.
2. Tilt the battery slightly to the side.
3. Lift the battery with
both hands and remove
it from the holder.
Caution: For reasons of safety you should make sure that you
have removed the key.
1.
2. 3.
3

Folgen Sie der Vorgehensweise in umgekehrter Reihenfolge,
um den Akku am Fahrrad zu befestigen
(der Schlüssel wird zum Anbringen des Akkus nicht benötigt)
1. Richten Sie den Boden
des Akkus an der Akkuaufnahme
des Fahrrades aus.
Akku
Akku Behälter
2. Kippen Sie den Akku in die
vorhergesehene Halterung und rasten Sie ihn ein..
3. Stellen Sie sicher, dass der
Akku in Position gesichert ist,
sodass er sich nicht nach vorn
bewegen kann.
(der Schlüssel wird zum Anbringen des Akkus
nicht benötigt).
Push
E F
Charging process
1. Plug the charging device into a 220 volt
socket. Grasp the battery and insert it into
the slot provided for it on the charging
station.
2. The LEDs of the battery light up. When all
5 LEDs are glowing red, the battery is
fully charged.
3. Remove the battery from the charging station.
4. Unplug the charging station.
Installing the battery
Comments
● Make sure that the battery is fully charged before the first ride or after the bicycle has not
been used for longer than one month. The battery is not charged when delivered.
● Make sure that the battery is charged for at least 3 hours before its first use.
● Charge the battery at an ambient temperature of 0-40°C. If the outside temperature of the
battery is below 0°C or above 40 °C, the charger will remain in the standby mode and
the battery cannot be charged.
Before starting to ride
Check the remaining capacity of the battery to determine whether it is sufficient for
riding to your destination. If the button on the display panel marked “Push” is
pressed, this will show the remaining capacity of the battery.
This is an approximate value.
● In very cold weather, after a trip through mountains or if the
battery has not been used for a long time, the power assistance
will not operate even though the indicator light is on. In this case,
the battery must be placed in the charger in order to recharge it.
● In winter, the travelling range is reduced in relation to the battery’s original capacity.
● The range may vary depending on the road and driving conditions.
If all diodes flash one after another or in groups (2-3 diodes),
the battery is damaged.
1. Place the battery in the battery mount, tilted
outward on the left hand side by about 45°.
2. Use the guides on the side of the battery when
inserting it into the battery holder.
3. Tilt the battery toward the bicycle until it
engages the lock.
4. Check that the battery is firmly seated.
The key is not required for installation.
Battery status indicator
E= battery empty
F= battery full
4

Battery Available capacity Control panel
Check battery
status
Battery status
indicator LED
All five (5) LEDs on
% 20 40 60 80 100
Battery
status
indicator
LED
All three (3) LEDs
on, approx. 70 – 100 %
Two (2) LEDs on,
approx. 40 – 70 %
LED blinks
slowly – blinks quickly –
off approx. 0 – 10 %
Four (4) LEDs on
Three (3) LEDs on
Two (2) LEDs on
One (1) LED on
One (1) LED blinking
approx. 60 - 80 %
approx. 40 - 60 %
approx. 20 - 40 %
approx. 10 - 20 %
approx. 10 - 0 %
One (1) LED on,
approx. 10 – 20 %
Push
E F
Push
E F
Push
E F
Push
E F
Push
E F
Push
FE
approx. 80 - 100 %
Push
E F
Operation
The electronic power assistance is
switch on and off by using a switch
mounted on the handlebars.
(„Power“)
Switching on the power
assistance
Press the on/off switch on the control panel. („Power“)
The LEDs on the control panel light up for about two seconds and then go out again.
Do not use the pedals when the LEDs are on. The torque sensor is configuring the
control programme.
● After this, the battery status indicators light up and show the remaining capacity of the
battery. If the lower power LED is blinking, you must charge the battery immediately
before use (see section on LED light mode when riding).
● 10 minutes after the bicycle is brought to a halt, the current supply is automatically switched
off (“Automatic cut off“). When you start riding again, repeat the procedure described above.
The bicycle’s torque sensor is automatically reconfigured every time you change
the riding mode. This extends the useful life of the battery.
If the LED does not light up during operation, check whether the battery is charged
and securely mounted.
LED light mode when riding
During the trip, monitor the status of the light emitting diodes (LEDs).
If they blink, this is a precise indication that the battery capacity is very low and that
charging will soon be necessary.
Battery status
indicator
LED
On/Off
switch
Control panel
Selection of
assistance
level “Mode”
5

1
1
4
5
5
6
7
2
2
5
6
3
Recommended Gear
empfohlener
Hilfsmodus
Shift to 3rd or 4th gear
(easy pedalling in 1st gear)
(1st is recommended
for steep slopes)
Shift to 2nd or 3rd gear
Shift to 7th gear
Set assistance
to “low”
Set assistance
to “high”
Set assistance
to “low”
Recommended
assistance mode
Level Road
Uphill
Downhill
Push
E F
LED status on the control panel
The battery has a charge sufficient for your trip.
The available battery capacity is indicated by
the lighting up of the corresponding LED.
The battery charge has dropped to a low level. The
remaining battery power is 9% of capacity.
Recharging is recommended.
The battery is completely dead. A recharge is necessary
immediately.
Other forms of LED status are explained in the chapter “Self diagnosis”
The LED can show when an excessively high drain of energy is being consumed
on a constant basis (e.g. when riding uphill) or if the battery has not been used
for a long time.
Should this occur, press the on/off switch (“Power”) in order to switch off the current
and then press it again to continue operation.
Selection of assistance level (Mode
You can change the mode settings after the
motor is switched on.
Every time you press the mode switch, the
assistance level is switched up or down
accordingly.
The following three modes are available:
Assistance high 1:1.3
Assistance medium 1:1
Assistance low 1:0.5
Low assistance (energy-saving mode)
If you select a low assistance level you will have a greater range and if you select
a high assistance level, your range will be smaller.
When necessary, set the accessory motor to high mode. If no pedalling is
necessary when riding downhill, the accessory motor will switch off automatically.
You can adjust the optimal position of the gearshift and/or the accessory
mode corresponding to your physical capabilities, whether you are going uphill
or downhill, whether you have a headwind or tailwind.
Assistance
level
“Mode”
LEDs on
Blinking slowly
Blinking rapidly,
goes out after
approx. 3 minutes
6

- 10oC 0oC 10oC 20oC 30oC 40oC 50oC
Charging the battery
Ideal temperature range
for charging
Battery might
be damaged
Long charging times
Li ion battery
For stopping
Neither the gearshift nor the mode switch should be activated.
● First activate the rear wheel brake or front wheel brake and rear wheel
brake simultaneously.
● Stop
● Press the on/off switch to interrupt the current flow.
Care and maintenance/information on the battery
Have the electric drive system checked regularly by your authorized dealer.
Do not perform any repair operations on the electric drive system or battery.
Lack of specialist knowledge can lead to serious accidents.
Battery tips
The bicycle that you have purchased is operated with the following battery types:
Model: Li-lon-battery (Ni-Li) NKY224B02
Capacity: 10 Ah
This battery can be charged and discharged about 500 times.
A battery should always be considered as a part which is subject to wear. This
means that the initial capacity diminishes with increasing age and according to the
frequency with which the battery is charged. If the travel range of your bicycle is
no longer sufficient for you, we advise you to replace your battery.
Battery sleep mode
When delivered, the battery is in the so-called sleep mode. Therefore, the battery
must be fully charged before it is operated for the first time because otherwise
it can produce no current. In the sleep mode, the operating panel is inactive.
If the capacity of the battery drops below 50% and if the battery remains uncharged
for longer than two weeks, the sleep mode returns.
Also, the battery self-discharges over time and it will enter the sleep mode after
a down time of approx. 4 months, even if it is fully charged.
Batteries cannot be disposed of with regular domestic waste.
● Do not charge your bicycle battery in any other charger. Charging other batteries in the
charging station delivered with the system is also not permitted. There is a risk of explosion!
● Please do not store the battery outside and only install it just before starting to ride.
● Do not throw the battery into a fire or expose it to a heat source, because it could explode
and cause serious injuries.
● Please use only a damp cloth without chemical cleaners for cleaning the battery housing.
● Never attempt to open the battery.
● Check the battery housing regularly for cracks, breaks or unusual deposits on the contacts.
A battery with a damaged housing may no longer be used.
The battery must be fully charged at least every six months - otherwise
irreparable damage may occur.
7

Discharge curve for lower temperature
Discharge curve for regular temperature
Possible discharge capacity at
lower temperature (time)
Possible discharge capacity at
regular temperature (time)
Discharge Capacity (Ah) or hours required
Minimum voltage for battery operation (battery cut-off voltage)
Nominal voltage
Discharge characteristic curve (temperature)
Temperature
Difference
Regardless of whether it is a NiCd, NiMH or Li ion battery, charging is accomplished
by a chemical reaction of the substances inside the battery. Since the chemical
reaction in the battery takes place slowly at low temperatures, the discharge capaci-
ty, regardless of the type of battery, tends to diminish in comparison to that at
ordinary temperature.
In actual use, it has been noted that, as the figure shows, the accessory motor may
stop prematurely despite some remaining battery capacity, since the discharge
voltage tends to remain at a lower level at a low temperature. This does not mean a
malfunction and the battery will regenerate itself when the temperature rises.
On several consecutive days in winter, the discharge capacity may drop due
to the low temperatures with the result that the range may be suddenly reduced.
General information
on the charger
The delivery includes the type NKJ38 charger. Before
use, take the charger out of the cardboard box and
remove the plastic wrapping. If you do not do this, the
outside of the charger can be deformed by the heat.
Store the charger in a dry place if you are not
charging the battery.
Improper handling can cause serious accidents or injuries.
● Never bring the contacts of the charger together during the charging process.
● Do not attempt to disassemble the charger or alter it.
● Do not use the charger in damp spaces.
● Do not continue using a damaged charger or accessories (e.g., housing, cables, plugs)!
Risk of electric shock, short-circuit or fire!
● Keep it away from children – risk of electric shock.
● Please make sure that the plug is properly inserted into the socket.
● Plug and contacts of the charger should be kept free of dust, clean and dry.
● The charger can only be connected to a 220-230 V socket.
● Avoid prolonged direct skin contact with the charger during the charging process. During
this time the device heats up to about 40-60°C.
Risk of burns!
● The charger should only be set up in a secure stable position on a suitable surface.
● Do not cover the charger or place objects on it.
Risk of overheating or fire!
Self diagnosis
The control unit of the control panel has a self-diagnosis
mode. With the aid of self-diagnosis, any improper function
of the electrical system can be determined.
The error code is identified by different modes of blinking
(number and frequency) of the diodes.
8

Errors Blinking LEDs Comment
Blinking interval - a field corresponds to 0.5 sec
Directly after
switching on
Position error of
the torque pickup
Battery dead
Motor unit defective
Reset
Position error of the torque sensor
Overload
Strong overload
Transmission error
Upper power diode
Middle power diode
Lower power diode
Self configuration
and further
Press “Off” and “On” twice to reset.
To avoid this error do not use the pedals for the first two seconds after
switching on.
and further
and further
and further
and further
no blinking
when cooled
no blinking
when cooled
start support mode
no electric support
no electric support
Reset required
no electric support
Motor unit defective
Reduce assistance level
by 2 steps
Reduce assistance level
by 2 steps
Reduce assistance level by
1 step
“High” mode
“Medium” mode
“Low” mode
Lower power diode
Two power diodes
All three mode diodes
Two power diodes
All three mode diodes
One mode diode
One mode diode
Last power diode
Indicates remaining battery capacity.
Troubleshooting
Have the electric drive system checked regularly by your authorized dealer.
Do not perform any repair operations on the electric drive system or battery.
Lack of specialist knowledge can lead to serious accidents.
The following tips are only to be considered as guidelines. You should not
hesitate to contact your dealer if you have a problem with the electric drive or
with the battery.
9

Fehlersuche
Problem Cause Item to be checked
current cannot be
switched on
1) No remaining battery
capacity
2) Battery switch
activated, fuse burnt out
3) Malfunction of
control switch/cable
break
1) check the battery
charge status indicator
2) have the voltage on
the battery terminal
checked by the authorized
dealer
3) check whether the
covering foil of the control
switch is damaged and
if the cable is in bad
condition. If so, contact
your authorized dealer.
Assistance not provided 1) Indicator error control
switch
2) Automatic switch-off
activated
3) Malfunction of
control switch
4) Motor defect or drive
problem
1) See self-diagnosis of the
control switch.
2) Check whether more
than 10 minutes have
elapsed since the pedals
were used.
3) Check whether the label
on the controls has been
torn off or has peeled off.
If so, contact your authori-
zed dealer.
4) Contact your authorized
dealer
Problem Cause Item to be checked
Weak assistance 1) Capacity drop due to
battery ageing
2) Incorrect setting at
the starting point of the
torque sensor
3) Motor defect or drive
problem
1) Have the voltage on the
battery terminal checked
after the charging process
is completed.
2) Did you have your foot
on the pedal when swit-
ching on?
3) Contact your authorized
dealer.
Battery LED does not
come on
1) Battery LED does not
come on
2) Malfunction of
control switch
1) Have the battery tested
at your dealer’s.
2) Check whether the cover
foil of the control switch is
damaged. If so, contact
your authorized dealer.
Charging error standby
continued
1) Total discharge due to
prolonged storage
2) Battery switch activa-
ted, fuse burnt out
3) Outside the tempera-
ture range (0-40°C)
1) Have the battery termi-
nal voltage checked.
2) Have the battery termi-
nal voltage checked.
3) Was the battery charged
outside in the winter/
shortly after riding?
10

Problem Cause Item to be checked
Range is reduced 1) Aging, end of service
life of battery
2) Overload (carrying
heavy loads, climbing,
gear use)
3) Poor bicycle
maintenance
4) Deactivation due to
prolonged storage
5) Incomplete charge
due to abnormal
termination of charging
process
1) Check the useful life of
the battery.
2) Are you driving with the
bike when the gear is at
“middle” or “fast”?
3) Do the tires have too
little air, is a brake
rubbing?
4) Have the battery
terminal voltage checked.
5) Please repeat charging
process.
Battery status indicator 1) Aging, end of service
life of battery
1) Check the useful life
of the battery.
Replace the electrical components on your bicycle only with parts tested
for the corresponding model.
Technische Daten
Drive Motor Motor type: Brushless pedal bearing motor
Power output: 250 W
Controlled by a force sensor
i.e. at assistance level 1:1, the drive feeds the same
power into the system that the rider himself applies.
Battery Removable, rechargeable
Lithium ion manganese battery 26 V 10 Ah (260 Wh)
8 Ah Weight 2.2 kg
10 Ah Weight 2.4 kg
Service life: 3-4 years, 500 charging cycles
Charger Charging time: approx. 3 h / first charge: min. 4 h
Weight of charger: 530 g
Power supply: 220 V (50 Hz) AC
Power 62 W
Range up to 80 km (* in the case of average use, optimal
conditions and fully charged battery)
We wish you a lot of pleasure with your new bicycle!
Copyright © 2007 Derby Cycle Werke GmbH
Reproduction, even in excerpts, only with the authorization of Derby Cycle Werke
GmbH, printing errors, mistakes and technical modifications reserved!
This bicycle is in
compliance with the
requirements of the
following EEC directives:
Electro Magnetic
Compatibility Directive
(89/336/EEG).
Low Voltage Directive
(73/23/EEC and
93/68/EEC).
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