English – 2
Product description and
specifications
Intended use
The drive unit is intended exclusively for driving your eBike
and must not be used for any other purpose.
In addition to the functions shown here, changes to software
relating to troubleshooting and functional enhancements
may be introduced at any time.
Technical data
Drive unit
Product code
Continuous rated power
Torque at drive, max.
Rated voltage
Operating temperature
Storage temperature
Protection rating
Weight, approx.
The Bosch eBike system uses FreeRTOS (see http://www.freertos.org).
A)
Bicycle lights
B)
Voltage approx.
Maximum power
– Front light
– Tail light
A) Depends on legal regulations, not possible in all country-specific models via the eBike battery
B) When changing the bulbs, ensure that they are compatible with the Bosch eBike system (ask your bicycle dealer) and are suitable for the
specified voltage. Bulbs must only be replaced with bulbs of the same voltage.
Inserting a bulb incorrectly can cause it to blow.
Assembly
Inserting and removing the battery
For inserting and removing the eBike battery in/from the
eBike, please read and observe the battery operating in-
structions.
Checking the speed sensor (see figure A)
The speed sensor (2) and its spoke magnet (3) must be fit-
ted such that the spoke magnet moves past the speed
sensor at a distance of at least 5 mm and at most 17 mm
with each rotation of the wheel.
Note: If the distance between the speed sensor (2) and the
spoke magnet (3) is too small or too large, or if the speed
sensor (2) is not properly connected, the speedometer dis-
play will fail and the eBike drive unit will operate in emer-
0 275 007 XD4 | (12.02.2019)
Product features
Individual illustrations in these operating instructions may
differ slightly from the actual conditions depending on the
equipment of your eBike.
The numbering of the components shown refers to the illus-
trations on the graphics pages at the beginning of the
manual.
(1) Drive unit
(2) Speed sensor
(3) Speed sensor spoke magnet
Drive Unit
Performance Line CX/
Cargo Line
BDU450 CX
W
Nm
V=
°C
−5 to +40
°C
−10 to +50
IP 54 (dust- and splash-proof)
kg
gency mode.
Should this occur, loosen the screw of the spoke magnet (3)
and fasten the spoke magnet to the spoke such that it runs
past the marking on the speed sensor at the correct clear-
ance. If the speed is still not being indicated on the speedo-
meter display after doing this, please contact an authorised
bicycle dealer.
Operation
Start-up
Requirements
The eBike system can only be activated when the following
requirements are met:
– A sufficiently charged battery is inserted (see battery op-
erating instructions).
Drive Unit
Performance Line Speed/
Cargo Line Speed
250
75
36
−10 to +50
IP 54 (dust- and splash-proof)
3
V=
W
W
Bosch eBike Systems
BDU490P
250
75
36
−5 to +40
3
12
17.4
0.6