English–1
1 270 020 XBP | (22.5.17) Bosch eBike Systems
Safety Notes
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and in-
structions may result in electric shock, fire
and/or serious injury.
Save all safety warnings and instructions for future
reference.
The term “battery” is used in these instructions to mean all
original Bosch eBike rechargeable battery packs.
f Make sure to not be distracted by the display of the
on-board computer. If you do not focus exclusively on the
traffic, you risk being involved in an accident.
f Read and observe the safety warnings and instructions
in all operating instructions of the eBike system and in
the operating instructions of your eBike.
Product Description and
Specifications
Intended Use
The Purion on-board computer is designed to control Bosch
eBike systems and display riding data.
In addition to the functions shown here, changes to software
relating to troubleshooting and functional enhancements may
be introduced at any time.
Product Features
The numbering of the components shown refers to the illus-
trations on the graphic pages at the beginning of the manual.
Individual illustrations in these operating instructions may
differ slightly from the actual circumstances depending on the
equipment of your eBike.
1 On/Off button for on-board computer
2 Push-assistance button “WALK”
3 Fastening screw for on-board computer
4 Holder for on-board computer
5 Decrease assistance level button “–”
6 Increase assistance level button “+”
7 Display
8 Protective cap of USB port
9 USB diagnostic socket(for servicing purposes only)
10 Battery lid
Display elements of on-board computer
a Speed indication
b km/h unit indicator
c mph unit indicator
d Total distance indicator “TOTAL”
e Range indicator “RANGE”
f Service indicator
g Battery charge-control indicator
h Light indicator
i Assistance level indicator/value indicator
j Trip distance indicator “TRIP”
Technical Data
Operation
Initial Operation
Requirements
The eBike system can only be activated when the following
requirements are met:
– A sufficiently charged battery pack is inserted (see battery
pack operating instructions).
– The speed sensor is connected properly (see drive unit
operating instructions).
Switching the eBike System On/Off
Options for switching on the eBike system:
– Press the On/Off button 1 of the on-board computer with
the eBike battery pack inserted.
– Press the On/Off button of the eBike battery pack (see
battery pack operating instructions).
The drive is activated as soon as you step on the pedals
(except for in the push assistance function or in assistance
level “OFF”). The motor output depends on the settings of the
assistance level on the on-board computer.
On-board computer Purion
Article number
1 270 020 916/925
1 270 020 917/926
Batteries
1)
2 x 3 V CR2016
Operating temperature
°C –5...+40
Storage temperature
°C –10...+50
Protection type
2)
IP 54 (dust and splash
water protected)
Weight, approx.
kg 0.1
1) We recommend using the batteries offered by Bosch. You can
purchase them from your bicycle dealer (part number:
1 270 016 819).
2) When USB cover is closed
Bosch eBike system uses FreeRTOS (see www.freertos.org)
OBJ_BUCH-2819-002.book Page 1 Monday, May 22, 2017 11:27 AM
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