Bosch BDU3740 Instrucciones De Servicio Originales página 10

English – 2
(1) Drive unit
a)
(2) Speed sensor
(3) Spoke magnet
b)
(4) CenterLock magnet
(5) Rim magnet
a) different sensor type and installation position is possible
b) different installation position is possible
Technical data
Drive unit
Product code
Continuous rated power
Torque at drive, max.
Rated voltage
Operating temperature
Storage temperature
Protection rating
Weight, approx.
A) not compatible with the rim magnet
The Bosch eBike systems use FreeRTOS (see www.freertos.org).
A)
Bicycle lights
Voltage approx.
Maximum power
– Front light
– Tail light
A) Depends on legal regulations, not possible in all country-specific
models via the eBike battery
Inserting a bulb incorrectly can cause it to blow.
Information on the noise emissions of the drive
unit
Typically, the A-weighted noise emission level of the drive
unit is < 70 dB(A). A key feature of the <eBike Alarm> ser-
vice is that the drive unit will emit an alarm tone in response
to unauthorised movement of the eBike. This alarm tone can
exceed a noise emission level of 70 dB(A) and measures
80 dB(A) at a 2 m distance from the drive unit. The alarm
tone is only available once the <eBike Alarm> service has
been activated and can be deactivated via the app eBike
Flow.
0 275 007 3D1 | (13.02.2023)
Assembly
Checking the speed sensor (see figure A)
Speedsensor (slim)
The speed sensor (2) and its CenterLock magnet (4) or
spoke magnet (3) are mounted ex works in such a manner
that the magnet, after a turn of the wheel, moves past the
speed sensor with a clearance of at least 2 mm, yet no more
than 15 mm.
If any structural changes are made, the correct distance
Drive Unit
between the magnet and the sensor must be complied with
Performance Line
(see figure A).
CX/Cargo/
Note: Make sure you do not damage the sensor or the sensor
CX Race Edition/
holder when fitting or removing the rear wheel.
Speed
When changing a wheel, make sure that the sensor cable is
BDU3740
routed so that it is not under tension and has no kinks.
BDU3741
The CenterLock magnet (4) can only be removed and rein-
A)
BDU3742
serted up to 5 times.
A)
BDU3743
BDU3760
Rim magnet
BDU3761
When installing a rim magnet, no sensor is required to detect
BDU3780
a wheel turn. The drive unit itself detects when the magnet is
BDU3781
close to it and calculates the speed and any other data re-
quired from the frequency of the emergence of the magnet
W 250
field.
Nm 85
Since the drive unit is sensitive to magnetic fields, avoid
V= 36
other magnetic fields in the vicinity of the drive unit (e.g.
°C −5 to +40
magnetic clipless pedals, magnetic cadence sensors, etc.) in
order to prevent disruption to the drive unit.
°C +10 to +40
IP55
Operation
kg 3
A control unit from the system generation the smart system
is required for the starting operation of the eBike. Please ob-
serve the operating instructions of the control unit and, if ne-
cessary, additional components from the system generation
V= 12
the smart system.
Notes on Cycling with Your eBike
W 17.4
When does the drive work?
W 0.6
The drive assists your cycling only when you are pedalling. If
you do not pedal, the assistance will not work. The drive
power always depends on the pedalling force and cadence
you apply.
With low force or cadence, the support will be less than with
high force or cadence. This applies irrespective of the assist-
ance level.
The drive automatically switches off at speeds over
25/45 km/h. When the speed falls below 25/45 km/h, the
drive automatically becomes available again.
An exception applies to the walk assistance function, in
which the eBike can be pushed at low speed without ped-
alling. The pedals may rotate when the walk assistance is in
use.
You can also use the eBike as a normal bicycle without as-
sistance at any time, either by switching off the eBike or by
Bosch eBike Systems