Charger / Travel Charger; Assistance By The Electric Motor; Operating Principle Of Assistance; Drive System - Derby cycle kalkhoff User Manual

6.1 Charger / Travel charger display
RED LED GREEN LED
not lit not lit
not lit flashing
not lit solid
flashing not lit

7 Assistance by the electric motor

If your Pedelec is equipped with hub gears, you may
have to take more load off the pedals when changing
gears than you would normally do when riding your
conventional bike. This is due to the additional power
output of the electric motor. The hub gear system
contains a device that protects it against gear shifting
operations under excessive loads in order to preserve
the gear unit in the hub.
7.1

Operating principle of assistance

7.1.1 26 V drive system
The motor provides support as soon as you switch the
assistance on and start pedalling. This makes it easier for
you to set off up a hill.
MEANING
Fully charged.
Battery not inserted.
No contact.
Battery management awaiting
input.
Battery detecting the battery.
Recharging.
The charging current is too high.
Make sure you keep the hand brake pressed as you
get on to prevent you from setting off too soon when
you put your feet on the pedals.
7.1.2 36 V drive system
When you begin to pedal with assistance switched on, the
motor assists you only slightly up to 1 km/h (even if you
pedal as hard as you can) and then produces its maximum
torque up to five km/h. This feature prevents the bike from
lurching forward from a standstill once you pedal (e.g.,
when stopped at traffic lights).
The thrust delivered by the motor depends on three fac-
tors:
• Your own pedalling effortThe motor adapts to the
force you apply. If you pedal harder, e.g. uphill or
when setting off, the power sensor detects this and
delivers more power than if you were only pedal-
ling gently. The assistance increases proportionally
if you pedal harder. Given identical pedal power,
the motor outputs more power in the HIGH mode
than in the medium or LOW mode. The thrust is
limited by the maximum motor output.
User Manual | Pedelec with centre motor
SOLUTION
/
Connect the battery.
Check the contacts. They may be
dirty.
/
/
/
Disconnect the battery from the
charger and then connect it again.
If the error message still appears,
the battery and charger must be
checked by a specialist dealer.
27