TQ-Systems HPR50 User manual

Drive Unit HPR50
User Manual
EN

EN – 2
1 Safety
These instruction contains information that you must observe for
your personal safety and to prevent personal injury and damage
to property. They are highlighted by warning triangles and shown
below according to the degree of danger.
►Read the instructions completely before start-up and use. This will help
you to avoid hazards and errors.
►Keep the manual for future reference. This user manual is an integral part
of the product and must be handed over to third parties in case of resale.
NOTE
Also observe the additional documentation for the other components of the
HPR50 drive system as well as the documentation enclosed with the e-bike.
1.1 Hazard classification
HAZARD
The signal word indicates a hazard with a high degree of risk which will
result in death or serious injury if not avoided.
WARNING
The signal word indicates a hazard with a medium level of risk which will
result in death or serious injury if not avoided.
CAUTION
The signal word indicates a hazard with a low level of risk which could result
in a minor or moderate injury if not avoided.
NOTE
A note in the sense of this instruction is important information about the
product or the respective part of the instruction to which special attention
is to be drawn.

EN – 3
1.2 Intended Use
The Drive Unit HPR50 is intended exclusively for assisting power to your
e-bike and must not be used for any other purposes.
Any other use or use that goes beyond this is considered improper and will
result in the loss of the warranty. In case of non-intended use, TQ-Systems
GmbH assumes no liability for any damage that may occur and no warranty
for proper and functional operation of the product.
Intended use also includes observing these instructions and all information
contained therein as well as the information on intended use in the supple-
mentary
documents enclosed with the e-bike.
Faultless and safe operation of the product requires proper transport, storage,
installation and operation.
1.3 Safety instructions for working on the e-bike
Make sure that the HPR50 drive system is no longer supplied with power
before doing any work (e.g. cleaing, chain maintenance, etc.) on the e-bike:
►Switch off the drive system at the Display and wait until the Display has
disappeared.
Otherwise, there is a risk that the Drive Unit may start in an uncontrolled way
and cause serious injuries, e.g. crushing, pinching or shearing of the hands.
All work such as repair, assembly, service and maintenance be carried out
exclusively by a bicycle dealer authorized by TQ.
1.4 Safety instructions for the Drive Unit HPR50 of
the drive system
—Do not make any changes to the Drive Unit that affect the performance or
maximum supported speed of your Drive Unit. By doing so you endanger
yourself and others and possibly violate laws. The warranty will be voided
in addition.
—The walk assist must only be used to push the e-bike. Make sure that both
wheels of the e-bike are in contact with the ground. Otherwise, there is a
risk of injury.
—Make sure that your legs are at a safe distance from the pedals when the
walk assist is avtivated. Otherwise there is a risk of injury from the rotating
pedals.

EN – 4
The Drive Unit can heat up during operation depending on
the load and other factors, so that the surface of the Drive
Unit and nearby components (Drive Unit cover) become hot.
Do not touch the Drive Unit with your hands or legs during or
after a ride. Otherwise there is a risk of burns.
NOTE
—The housing of the Drive Unit must not be opened.
—The warranty expires automatically when the housing of the Drive Unit is
opened.
—The Drive Unit may only be removed and installed by an authorized
workshop.
1.5 Riding safety instructions
Observe the following points to avoid injuries due to a fall when starting with
high torque:
—We recommend that you wear a suitable helmet and protective clothing
every time you ride. Please observe the regulations of your country.
—Consider the potentially high torque of the drive when starting up.
—Select a suitable gear ratio or pedal assistance for starting off to avoid the
risk of a wheelie (front wheel lifts off) or rollover.
CAUTION
Risk of injury
Practice the handling of the e-bike and its functions without assistance from
the Drive Unit at first. Then gradually increase the assistance mode.

EN – 5
2 Technical data
2.1 Drive unit
Weight approx. 1.850 g / 4,1 lbs
Continous rated power 250 W
Torque (max.) 50 Nm
Interface standard of bottom
bracket shaft
ISIS
Length of bottom bracket
schaft
135 mm / 5,31“
Protection class IP67
Operating temperature
Storage temperature
-5 °C to +40 °C / 23 °F to 104 °F
0 °C to +40 °C / -4 °F to 104 °F
Tab. 1: Technische Daten – Antriebseinheit
2.2 Speedsensor
Weight 16 g incl. magnet
Mounting position Left rear dropout
Tab. 2: Technical data – Speedsensor

EN – 6
3 Mounting position Speedsensor
The speed of the e-bike is measured with support of a magnet (item 2 in Fig.
1) which triggers pulses at the speed sensor (item 1 in Fig. 1). The Speedsensor
and magnet are mounted at manufacturer with a distance between 1 mm and
8 mm (see Fig. 1) in the area of the rear wheel.
NOTE
►Check the correct distance between Speedsensor and magnet if the
speed Display shows incorrect values or fails.
►When performing installation work on the rear wheel, make sure that
you do not damage the sensor or the sensor bracket. All work such as
repair, assembly, service and maintenance carried out exclusively by a
bicycle dealer authorized by TQ.
►Make sure that the Speedsensor and magnet are free of dirt to avoid
signal interference.
Fig. 1: Mounting – Distance between Speedsensor and magnet
1
2
1 mm – 8 mm

EN – 7
4 Operation
►Make sure that the Battery is sufficiently charged before operation.
Switch on drive system:
►Switch on the Drive Unit by shortly
pressing the button (pos. 1 in Fig.
2) on the Display.
Switch off drive system:
►Switch off the Drive Unit by long
pressing the button (pos. 1 in Fig.
2) on the Display.
Please refer to the respective user
manual for more information on the
initial configuration and the functionalities of the Display.
5 General riding notes
5.1 Functionality of the drive system HPR50
The HPR50 drive system supports you when riding up to a speed limit
permitted by law which may vary depending on your country. The precon-
dition for Drive Unit assistance is that the rider pedals. At speeds above the
permitted speed limit, the drive system turns off the assistance until the speed
is back within the permitted range.
The assistance provided by the drive system depends firstly on the selected
assistance mode and secondly on the force exerted by the rider on the
pedals. The higher the force applied to the pedals the greater the Drive Unit
assistance.
You can also ride the e-bike without Drive Unit assistance, e.g. when the drive
system is switched off or the Battery is empty.
Fig. 2: Display
1

EN – 8
5.2 Gear shift
The same specifications and recommendations apply for shifting gears on an
e-bike as for shifting gears on a bicycle without Drive Unit assistance.
5.3 Riding range
The possible range with one Battery charge is influenced by various factors,
for example:
—Weight of e-bike, rider and baggage
—Selected assist mode
—Speed
—Route profile
—Selected gear
—Age and state of charge of the Battery
—Tire pressure
—Wind
—Outside temperature
The range of the e-bike can be extended with the optional range extende.
6 Transport and Storage
—Observe the permissible operating temperature (-10 °C to +40 °C / 14 °F to
104 °F) and storage temperature (-20 °C to +60 °C / -4 °F to 140 °F) during
transport and storage.
—Observe the country-specific regulations for the transport of e-bikes and
batteries.
WARNING
Fire or electric shock hazard due to damaged Battery or Range Extender
and unintentional start-up of the HPR50 drive system
The rechargeable batteries can be damaged by shocks or impacts during
transport. Furthermore, the HPR50 drive system can be started up uninten-
tionally.
►Take the necessary precautions to prevent the batteries from being
damaged or the drive system from starting up.

EN – 9
7 Cleaning
—The components of the HPR50 drive system must only be cleaned with
water from a standard household water hose and not with any high-pres-
sure cleaner.
—Before cleaning switch off the drive system on the Display.
—Before Cleaning remove the optional Range Extender if necessary.
—Before cleaning the e-bike check that the cover of the charging port in the
bike frame is closed and engaged.
—After cleaning, check that the charging port in the e-bike frame is dry. If
there are drops of water on the contacts in the charging port, the e-bike
may not be able to be switched on.
8 Maintenance and Service
All service, repair or maintenance work performed by a TQ authorized
bicycle dealer. Your bicycle dealer can also help you with questions about
bicycle use, service, repair or maintenance.
9 Environmentally friendly disposal
The components of the drive system and the batteries must not be
disposed of in the residual waste garbage can.
—Dispose of metal and plastic components in accordance with-
country-specific regulations.
—Dispose of electrical components in accordance with country-specific
regulations. In EU countries, for example, observe the national imple-
mentations of the Waste Electrical and Electronic Equipment Directive
2012/19/EU (WEEE).
—Dispose of batteries and rechargeable batteries in accordance with the
country-specific regulations. In EU countries, for example, observe the
national implementations of the Waste Battery Directive 2006/66/EC in
conjunction with Directives 2008/68/EC and (EU) 2020/1833.
—Observe addtitonally the regulations and laws of your country for disposal.
In addition you can return components of the drive system that are no longer
required to a bicycle dealer authorized by TQ.

We have checked the contents of this publication for conformity with the product
described. However, deviations cannot be ruled out so that we cannot accept any
liability for complete conformity and correctness.
The information in this publication is reviewed regularly and any necessary corrections
are included in subsequent editions.
All trademarks mentioned in this manual are the property of their respective owners.
Copyright © TQ-Systems GmbH
TQ-Systems GmbH | TQ-E-Mobility Art.-No.: HPR50-DRV01-UM
Gut Delling l Mühlstraße 2 l 82229 Seefeld l Germany Rev0201 2022/06
Tel.: [phone]
[e-mail] l www.tq-e-mobility.com
NOTE
For more information and TQ product manuals in various language, please
visit www.tq-ebike.com/en/support/manuals or scan this QR-Code.