MAHA LPS 3000 User manual

LPS 3000
Dynamometer for Passenger Cars, Commercial Vehicles and Motorcycles
Original Operating Instructions
BA052301-en

2BA052301-en
BA052301-en
2021-10-27
© MAHA Maschinenbau Haldenwang GmbH & Co. KG
The reproduction, distribution and utilization of this document as well as the communication of its contents
to others without explicit authorization is prohibited. Offenders will be held liable for the payment of
damages. All rights reserved in the event of the grant of a patent, utility model or design.
The contents of this edition have been checked with great care. However, errors cannot be fully excluded.
Subject to technical change without notice.
Manufacturer
MAHA Maschinenbau Haldenwang GmbH & Co. KG
Hoyen 20
87490 Haldenwang
Germany
Phone: [phone]
Fax: [phone]
Mail: [email protected]
Web: www.maha.de
Service
MAHA SERVICE CENTER
Maybachstraße 8
87437 Kempten
Germany
Phone: [phone]
Fax: [phone]
Mail: [e-mail]
Web: www.mahaservicecenter.de

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Contents
1Safety................................................................................................................................................................ 7
1.1 Introduction.................................................................................................................................................. 7
1.2 Symbols........................................................................................................................................................ 7
1.3 Intended Use ................................................................................................................................................ 7
1.4 Safety Instructions for Commissioning...................................................................................................... 7
1.5 Safety Instructions for Operation ............................................................................................................... 8
1.6 Safety Instructions for Servicing................................................................................................................. 9
1.7 Danger Zone............................................................................................................................................... 10
1.8 Safety Information about Tires ................................................................................................................. 11
1.9 Safety Information about the Eddy Current Brake ................................................................................... 11
1.10 Safety Information about Motorcycle Testing ......................................................................................... 11
1.11 Safety Information about the Anchoring Device LPS 3000 Truck .......................................................... 11
1.12 Safety Features.......................................................................................................................................... 12
1.13 Accessories................................................................................................................................................ 12
1.14 What to Do in the Event of an Accident.................................................................................................... 13
2Description ..................................................................................................................................................... 14
2.1 General Information................................................................................................................................... 14
2.2 Technical Data ........................................................................................................................................... 15
2.2.1 Communication Desk.......................................................................................................................... 15
2.2.2 Roller Sets............................................................................................................................................ 16
2.3 Main Switch................................................................................................................................................ 19
2.4 Remote Control.......................................................................................................................................... 19
2.5 Description of the Interface Box ............................................................................................................... 21
2.5.1 RPM Module (Standard) ..................................................................................................................... 23
2.5.2 Environmental Module (Standard) ..................................................................................................... 25
2.5.3 OBD Module (Optional) ....................................................................................................................... 26
2.5.4 Pressure/Temperature Module (Optional) ........................................................................................ 26
2.5.5 Analog Input Module (Optional) ......................................................................................................... 27
2.6 Analog Output Card (Optional) ................................................................................................................. 27
2.7 Lambda Broadband Sensor ...................................................................................................................... 28
2.8 Measurement Programs ........................................................................................................................... 33
2.9 Calculation Basis ....................................................................................................................................... 34
2.9.1 Road Load............................................................................................................................................ 34
2.9.2 Torque.................................................................................................................................................. 35
2.9.3 Extrapolation of the Engine Power with Gasoline Engines ............................................................... 36
2.9.4 Extrapolation of the Engine Power with Diesel Engines (Naturally Aspirated or Supercharged) ... 37
2.9.5 Extrapolation of the Engine Power with Turbodiesel Engines.......................................................... 38
2.9.6 Calculate Engine Factor fm ................................................................................................................ 39
2.9.7 Extrapolation of Drag Power by 2nd Coast Down Trial..................................................................... 40
2.9.8 4 Wheel Drive Operation ..................................................................................................................... 41
3Installation...................................................................................................................................................... 42
3.1 Requirements for the Place of Installation............................................................................................... 42
3.2 Safety Measures ........................................................................................................................................ 42

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3.2.1 Heat Balance ....................................................................................................................................... 42
3.2.2 Exhaust Suction System ..................................................................................................................... 44
3.2.3 Fresh Air Supply for the Test Room ................................................................................................... 45
4Transport and Storage................................................................................................................................... 45
5Installation and Initial Operation ................................................................................................................... 45
6Software ......................................................................................................................................................... 46
6.1 System Requirements ............................................................................................................................... 46
6.2 Starting the Setup ...................................................................................................................................... 46
6.3 Selecting the Setup Language .................................................................................................................. 47
6.4 Selecting the Destination Folder............................................................................................................... 48
6.5 Selecting the SQL Server ........................................................................................................................... 48
6.6 Selecting the Dyno Type............................................................................................................................ 49
6.7 Selecting Features ..................................................................................................................................... 49
6.8 Installing Drivers ........................................................................................................................................ 50
6.9 Finishing the Setup .................................................................................................................................... 50
6.10 Additional Settings under Windows 7 or higher....................................................................................... 51
7Preparations for Testing................................................................................................................................ 53
7.1 Switch on the Dyno .................................................................................................................................... 53
7.2 Drive onto Dyno.......................................................................................................................................... 53
7.3 Set Wheelbase (only 4WD Dynos) ............................................................................................................ 53
7.4 Fix Vehicle .................................................................................................................................................. 54
7.4.1 Fix Car/Truck ....................................................................................................................................... 55
7.4.2 Fix Motorcycle ..................................................................................................................................... 56
7.5 Attach Weight Simulator (Optional).......................................................................................................... 57
7.6 Connect the RPM Sensor .......................................................................................................................... 57
7.7 Connect Oil Temperature Probe ............................................................................................................... 57
7.8 Attach Exhaust Suction System................................................................................................................ 58
7.9 Position Cooling Air Fan............................................................................................................................ 58
7.10 Bring the Vehicle up to Operating Temperature ...................................................................................... 58
7.11 Vehicle Ready for Testing ......................................................................................................................... 58
8Program Structure ......................................................................................................................................... 59
8.1 General Information................................................................................................................................... 59
8.2 Tree Model ................................................................................................................................................. 60
8.3 Screen Design ............................................................................................................................................ 61
8.3.1 Status Line........................................................................................................................................... 61
8.3.2 Main Screen......................................................................................................................................... 63
8.3.3 Button Bar ............................................................................................................................................ 63
8.4 Starting the Program ................................................................................................................................. 64
8.5 End Program / Switch off Dyno ................................................................................................................ 64
9Measurements ............................................................................................................................................... 65
9.1 Load Simulation......................................................................................................................................... 65
9.1.1 Identical Functions.............................................................................................................................. 65
9.1.2 Constant Traction................................................................................................................................ 70
9.1.3 Constant Speed ................................................................................................................................... 72
9.1.4 Driving Simulation ............................................................................................................................... 73

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9.1.5 Constant Engine RPM ......................................................................................................................... 75
9.1.6 Standstill .............................................................................................................................................. 75
9.2 Measure Engine Power.............................................................................................................................. 76
9.2.1 Display Last Measurement ................................................................................................................. 76
9.2.2 Continuous Measurement .................................................................................................................. 77
9.2.3 Discrete Measurement........................................................................................................................ 80
9.3 Engine Flexibility Test................................................................................................................................ 82
9.4 Speedometer Check .................................................................................................................................. 83
9.4.1 Vehicle Speed ...................................................................................................................................... 83
9.4.2 Mileage ................................................................................................................................................ 84
9.5 Load Adaption (Optional) .......................................................................................................................... 85
9.5.1 Coefficient Adaption based on ECE ................................................................................................... 85
9.5.2 Coefficient Adaption based on SAE J2264 ....................................................................................... 86
9.6 Lug-Down Test (Option) ............................................................................................................................ 87
10 Settings........................................................................................................................................................... 88
10.1 Database .................................................................................................................................................... 88
10.1.1 Identical Functions.............................................................................................................................. 88
10.1.2 Performance Curves ........................................................................................................................... 91
10.1.3 Time Diagram ...................................................................................................................................... 95
10.1.4 Vehicle Data......................................................................................................................................... 96
10.1.5 Load simulation profile ....................................................................................................................... 97
10.1.6 Driving Cycle Data ............................................................................................................................... 99
10.2 Vehicle Data ............................................................................................................................................. 100
10.3 RPM Setting .............................................................................................................................................101
10.3.1 Driving Trial........................................................................................................................................ 102
10.4 Special Settings .......................................................................................................................................103
10.5 Select Dyno Type ..................................................................................................................................... 104
10.6 Units..........................................................................................................................................................104
10.7 Language..................................................................................................................................................105
10.8 Device / Interfaces...................................................................................................................................105
10.8.1 OBD Settings (Optional)....................................................................................................................106
11 Diagnosis / Service ...................................................................................................................................... 107
11.1 Dyno Status ..............................................................................................................................................107
11.2 Driver’s Aid Setup (Optional) ...................................................................................................................107
11.2.1 Test Driving Cycle..............................................................................................................................108
11.2.2 Edit Profile .........................................................................................................................................109
11.2.3 New Profile ........................................................................................................................................109
11.2.4 Delete Profile .....................................................................................................................................110
11.3 Backup/Restore Database ...................................................................................................................... 110
11.3.1 Backup Database ..............................................................................................................................110
11.3.2 Restore Database..............................................................................................................................110
11.3.3 Delete Table....................................................................................................................................... 111
11.3.4 Delete Database ................................................................................................................................111
12 Maintenance.................................................................................................................................................112
12.1 Important Information .............................................................................................................................112

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12.2 Annual Inspection ....................................................................................................................................112
12.3 Care Instructions .....................................................................................................................................112
12.4 Troubleshooting.......................................................................................................................................113
12.5 Maintenance by the Operator.................................................................................................................. 113
12.5.1 Roller Set............................................................................................................................................ 113
12.5.2 Eddy Current Brake............................................................................................................................113
12.5.3 Cardan Shaft...................................................................................................................................... 113
12.5.4 Encased Bearings.............................................................................................................................. 113
12.6 Spare Parts...............................................................................................................................................115
13 Dismantling .................................................................................................................................................. 115
14 Disposal........................................................................................................................................................115
15 Contents of the Declaration of Conformity ................................................................................................115

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1Safety
1.1 Introduction
Thoroughly read this manual before operating the equipment and comply with the instructions.
Always display the manual in a conspicuous location.
Personal injury and property damage incurred due to non-compliance with these safety
instructions are not covered by the product liability regulations.
1.2 Symbols
Important safety instructions. Failure to comply with instructions could result in personal injury
or property damage.
Important information.
1.3 Intended Use
This dynamometer is to be used exclusively for the performance testing of motor vehicles. It is
not suitable for brake testing or noise detection. Observe the rated axle load.
The equipment may not be modified without the express written consent of the manufacturer.
In case of non-compliance the declaration of conformity becomes void.
Any use other than described is inappropriate.
1.4 Safety Instructions for Commissioning
•Only authorized service technicians may install and commission the test stand.
•The test stand may not be installed and operated in fire-endangered operation facilities, out-
side or in damp rooms (e.g. wash halls).
•Mount components of the vehicle fixing unit in advance on a suitable lift on the test stand.
•Warning stickers must be attached by the operator:
–Hearing damage due to high noise level. Wear hearing protection.
–Severe eye injuries due to flying particles. Wear protective goggles! Operator is responsib-
le.
•Wear personal protective clothing as required or as regulated by law. The personal protective
clothing must meet the safety-technical regulations for the respective work application.

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1.5 Safety Instructions for Operation
•The dynamometer may only be used and operated exclusively for its intended purpose and
only within its performance limits.
•The dynamometer may only be operated by trained personnel. Dynamometer and working
area must be kept clean.
•The dynamometer may only be operated by persons who are physically and mentally fit.
These persons should be well rested and not under the influence of alcohol, drugs or medi-
cation.
•When not in use the system must be switched off and the main switch protected against re-
start.
•No persons may be in the danger zone of the dynamometer. Rotating or moving parts are
dangerous.
•Pay close attention to accident prevention regulations.
•Never climb on roller sets and lifting bar even when locked.
•Avoid unnecessary strain on vehicle and test stand. Drive the vehicle slowly onto the test
stand.
•Damage to low lying vehicles is not covered by the warranty.
•Regularly check the tightness of the cover plate attachment screws.
•No persons may be in the pit with dynamometers in conjunction with a working pit while a
vehicle with rotating wheels is on the roller set.
•Wear personal protective clothing. If necessary wear protective goggles. Particles ejected
from rotating vehicle wheels can cause severe injuries. Wear tightly fitting working clothes
and bind long hair together. Clothing or hair can get caught and pulled into machinery.
•Danger of hearing damage due to high noise level! Use hearing protection approved up to
120 dB(A). Noise levels over 110 dB(A) can be reached during vehicle testing. The operator
is responsible for determining the noise level in vehicle and test room. When necessary, wear
suitable hearing protection. The operator must attach warning stickers.
•Danger of carbon monoxide poisoning by poisonous vehicle exhaust. The test stand may on-
ly be operated if the room in which the test stand is installed has sufficient exhaust suction
and ventilation including the appropriate warning system.
•Avoid steering movement during the vehicle test. These cause certain forces to act on the
vehicle fixing in particular on the attachment units on the test vehicle. Vehicle doors and
windows must be closed during the test drive.
•Before exiting the vehicle, put the vehicle into idle and/or put the gear to NEUTRAL. If neces-
sary decelerate the vehicle in a controlled manner avoiding steering movements. Wait until
vehicle and rollers have stopped moving before exiting the vehicle. Danger of body parts and
clothing being pulled into rotating rollers and vehicle wheels.
•Keep dyno surface clean and dry. Danger of slipping when surface is wet, oily or icy! Do not
place any objects (tools, material etc.) on the dynamometer. Wear protective shoes with anti-
slip soles and steel toe caps to avoid slipping and mechanical injuries. Parts which protrude
more than 20 mm out of the floor are to be marked with black-yellow tape.
•In addition to the danger zone, the operator is responsible for confining the area of the test
room in which no persons are allowed during testing with a safety catch device or a cell wall.
Mark the danger zone (roller width + 1100 mm) on both sides behind the vehicle up to cell
wall/safety catch device.
•Danger of accident due to vehicle fixing fracturing! Do a visual check for damage to the vehi-
cle fixing before each use. Never start the test operation without suitable and correctly in-
stalled vehicle fixing. Lower lifting bar before fixing the vehicle. Fix the test vehicle at the
back and front side to the dynamometer and secure against lateral break out and swinging
movements. The vehicle fixing must be adjusted to the vehicle being tested and may only be

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used within its stated purpose and performance limits. Installation of the vehicle fixing ex-
clusively by skilled, trained personell. Inspect attachment units on the test vehicle for
strength. Pay attention to manufacturer’s information and/or load capacity. Pull on the park-
ing brake and raise the lifting bar before removing the vehicle fixing. The use of unsuitable
vehicle fixing, in particular external vehicle fixing increases the danger of injuries and can
impair safety.
1.6 Safety Instructions for Servicing
•Service work may only be carried out by authorized service technicians.
•The operating mode selection switch must be put in the correct position with repair, mainte-
nance and set-up work. Remove the key to protect against unauthorized usage.
•The safety devices must be set by authorized service technicians.
•The safety devices may not be replaced or circumvented.
•Wear tight-fitting safety gloves when doing setup work to reduce the danger of pinching.
Wear a protective helmet when doing service work in the test stand pit to avoid impact inju-
ries.
•Life-threatening electrical voltage! Only authorized electricians are allowed to work on the
electrical parts of the equipment based on valid electro-technical rules and guidelines. Be-
fore doing any work on the test stand electrics switch off all voltage and secure against re-
starting. Test for absence of voltage! Cabinet contains components with storage charge. Af-
ter switching off all voltages life-threatening voltage can still be present for at least 5
minutes! Check for discharge before starting work! Lock circuit box and store key securely.
Hand out key only if needed to authorized electricians.
•Errors and deviations from normal operating conditions are to be inspected only by trained
skilled workers who are authorized to do this kind of work. Circuits which are fed by an unin-
terruptible power supply are still under voltage even after the test stand has been switched
off from the mains connection. The control has circuits which are tapped before the mains
disconnection device of the test stand and are not voltage-free after switch off using the
mains disconnection. All equipment which are connected before the mains disconnection
device are wired with the colors YELLOW or ORANGE. Pay attention to calibration instruc-
tions.
•Use suitable lifting device with sufficient load capacity to open heavy test stand compo-
nents. The heaviest components can weigh up to 300 kg. Removal only by qualified skilled
personnel. Adhere to all valid safety regulations and relevant work protection guidelines. Lift
test stand components only on the designated lifting points.
•Use suitable lifting device with sufficient load capacity for removal and transport of heavy
test stand components. The heaviest components can weigh up to 300 kg. Removal and
transport only by qualified skilled personnel. Adhere to all valid safety regulations and rele-
vant work protection guidelines. Lift test stand components only on the designated lifting
points.

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1.7 Danger Zone
During dynamometer operation no persons are allowed to stay in the danger zone. See
illustration for minimum distance.
A Motorcycle
B Car 1-Axle
C Car 4WD
D Truck w/o Idle Roller
E Truck with Idle Roller
A
B
C
E
D

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1.8 Safety Information about Tires
•Check tire pressure and do a visual check of the tires for any signs of damage.
•To avoid tire damage we recommend that test tires be used during the perfor-
mance test.
•No vehicles should be tested which have snow tires, racing tires or retreaded
tires!
•Pay attention that the fastest permissible speed for the tires is not exceeded!
•Check the alignment weights on the rims to make sure they are tight before test-
ing.
•Pay attention to tire size! No test should be done with tires under 12”!
1.9 Safety Information about the Eddy Current Brake
The eddy current brake can heat up significantly during long lasting usage. The brake rotors
may become red hot.
After a long lasting measurement under load, the eddy current brake should continue to be
rotated without load by the vehicle at a speed of approx. 50 –80 km/h.
The rotating rotors suck cooled air from the side and throw it radially off. The eddy current
brake is thereby effectively cooled preventing heat build-up at the rotors damaging the coil
insulation.
1.10 Safety Information about Motorcycle Testing
•Truck roller sets may not be used for motorcycle tests.
•Tire manufacturers forbid the further use of tires on the road that have been driven on a roll-
er set for performance testing. Undetectable damage to the tire may have occurred. This ap-
plies to both apex and double rollers.
1.11 Safety Information about the Anchoring Device LPS 3000 Truck
The additional anchoring device is a supplement to the hydraulic load device on the LPS 3000
Truck. Anchoring devices are divided into two groups:
Lifting Straps
1 tension belt (50 mm width) Tensile strength 2000 kg, Length 4 m or
1 Polytex lifting strap 2-straps with ring and load hooks, ML 2 m, load capacity 2000 kg with
45…60 ° inclination angle
•Only authorized and trained personnel are allowed to use it
•Lifting straps should be checked for damage and safety before using
•Do not exceed permissible load capacity. Place the straps so that the load is distributed
across the entire width
•Use only suitable anchoring positions
•Only use undamaged lifting straps / tension belts with identifiable tension labels
•Do not knot or twist the lifting straps and do not tie together to extend them
•Wind the straps a min. of 1.5 times and a max.of 3 times around the ratchet.
•Only use lifting bands with protective edges when loads have sharp edges
•Do not put stress on the tip of or up to the bending point of fixed parts
•Operating temperature: -40…+100 °C

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•Load capacity reduction with:
- non-symmetric (unbalanced) load
- usage in tightening process only with permissible end loop reinforcement
•Shall not be used in lye.
•Usage forbidden when there are mechanical damages, deformation or damages to any safe-
ty features.
Inspection and maintenance after one year only by skilled technicians
Sling Chain
Sling chain (two parts) NL 1 m, with KHS-hooks. Load capacity 2000 kg with 45…60 ° inclination
angle.
•Usage only by authorized, trained personnel.
•Inspect the sling chain for damage of any kind and other safety application before commis-
sioning; do not use if there is mechanical damage, deformations, stretching of the chain or
an individual link, or reduction in the thickness.
•Do not exceed permissible load capacity.
•Use only suitable tie down positions.
•Use only sling chains with readable marking tag.
•Do not knot or twist the chain and do not place over sharp edges.
•Operating temperature: -40…+200 °C
•Load capacity reduction when there is:
- non-symmetric (unbalanced) load
- usage in tightening process.
•Shall not be used in acid or lye.
•Usage forbidden when there is mechanical damage, deformation or damage to safety fea-
tures.
•Do not load the hooks at the tip.
•Inspection and maintenance only by trained technicians after one year, and every 3 years a
special chain check for fracture detection.
1.12 Safety Features
The safety features must be checked regularly by an authorized service technician. Pay
attention to statutory requirements. The dyno shall not be operated with defective safety
features.
Lockable Main Switch
Serves as a normal On and Off switch and as an emergency switch. The switch can be
protected against unauthorized usage by locking with a padlock.
Pit Safety (optional)
Light barrier or infrared movement sensor. Issues audible and visual signals in the event that
persons are in the working pit.
Warning and Information Labels
Warning and information labels are attached to the dyno. The labels shall not be changed or
removed. Defective warning and information labels must be replaced.
1.13 Accessories
The equipment shall be operated only with accessories which have been approved or permitted
by MAHA.

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1.14 What to Do in the Event of an Accident
•The injured person is to be removed from the danger area. Find out where dressing and
bandages are kept. Seek first-aid.
•Provide first-aid (stop bleeding, immobilise injured limbs), report the accident and seal off
the accident site.
•Immediately report any accident to your supervisor. Make sure a record is kept of every oc-
casion first-aid is provided, e.g. in an accident book.
•Remain calm and answer any questions that may arise.

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2Description
2.1 General Information
The dynamometer consists of
•a communication desk with PC, monitor, keyboard and wheel mouse
•a remote control and
•a roller set
The LPS 3000 is available in various versions for performance testing of cars and trucks.
Depending on the version
•wheel power from 260 to 520 kW with a max. test speed of 260 km/h (cars)
•wheel power from 400 to 660 kW with a max. test speed of 100 km/h (trucks)
can be tested. The dyno load simulation is done with an eddy-current brake.
The LPS 3000 enables engine power measurements to be made on cars and trucks with petrol
and diesel engines. Testing of four wheel drive vehicles is possible if the LPS 3000 is equipped
with the appropriate roller set and the corresponding control electronics.
Optionally available are:
•A cooling air fan which is connected to the communication desk and is operated via the ra-
dio remote control.
•An interface box via which the following modules can be connected:
RPM module
Acquisition of engine RPM via Trigger tongs (petrol engine), Piezo clamp sensor (diesel engine),
TDC-sensor (manufacturer-specific, upon request), Diagnostic plug (manufacturer-specific,
upon request), Oil temperature probe (up to max. 180°C) and much more.
Environmental module
Acquisition of ambient temperature, intake air temperature, air pressure and humidity, fuel
temperature
Analog module
Acquisition of analog signals
OBD module
Aquisition of OBD data
Pressure/Temperature module
Recording of 2 temperatures and 2 pressures each
•To determine performance data of DIN 70020, EEC 80/1269, ISO 1585, SAE J1349 or
JIS D1001, a barometer and a humidity sensor are installed in the interface box (graphic
package is prerequisite) (*).
•MAHA emission testers, petrol (MGT5) and diesel (MDO2 and MDO2 LON) which can be
connected to the dyno (*).
•A4 ink jet printer, colour (*)
•Fuel consumption device for petrol and diesel engines (Krupp/AIC) (*)
•Analog output card to process measured variables as analog signal (e.g. display of issued
variables on an external analog instrument (*) ).
(*) These options are not connected to the interface box, but separately on the dyno.

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2.2 Technical Data
Specifications are subject to change without notice.
2.2.1 Communication Desk
Communication desk, Version A...................................................................... 670 x 1400 x 800 mm
Communication desk, Version B (available from March 2011) ..................... 350 x 1230 x 860 mm
A
B

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2.2.2 Roller Sets
1
R50
Motorcycle
2
R100/1
Car/Van
3
R100/2
Car/Van (2 eddy current brakes)
4
R100/1
4 wheel drive movable roller set Car/Van (1 eddy current brakes)
5
R100/2
4 wheel drive movable roller set Car/Van (2 eddy current brakes)
6
R200/1
Car/Van/Truck (closed version)
7
R200/2
Car/Van/Truck (divided version)
1
2
3
4

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5
6
7

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R50
R100/1
R100/2
R200/1
R200/2
Roller Set
Length [mm]
1420
3345
4140
4550
2260
Width [mm]
1100
1100
1100
1100
1100
Height [mm]
505
520
520
570
800
Weight
incl. packing
550 kg
1400 kg
1700 kg
2500 kg
2800 kg
Axle load
1,5 t
2,5 t
2,5 t
15 t
15 t
Roller length
220 mm
750 mm
750 mm
900 mm
900 mm
Track min.
800 mm
800 mm
820 mm
950 mm
Track max.
2300 mm
2300 mm
2620 mm
2750 mm
Smallest test-
able wheel-
12"
12"
12"
12"
12"
Roller
diameter
318 mm
318 mm
318 mm
318 mm
318 mm
Roller axle
separation
560 mm
540 mm
540 mm
565 mm
565 mm
Lifting Bar
Pneumatic
min. 5 bar
max. 8 bar
min. 5 bar
max. 8 bar
min. 5 bar
max. 8 bar
Hydraulic
up to max. 40
bar
up to max. 40
bar
Electrical Data
Eddy current
brake
260 kW
260 kW
2 x 260 kW
2 x 200 kW
2 x 200 kW *)
2 x 200 kW **)
Power supply
230 V / 50 Hz
230 V / 50 Hz
230 V / 50 Hz
400 V / 50 Hz
400 V / 50 Hz
Fuse
16 A slow
16 A slow
35 A slow
35 A slow
35 A slow *)
63 A slow **)
Display Range
Test speed
max. 300
km/h
max. 260
km/h
max. 260
km/h
max. 200
km/h
max. 200
km/h
Wheel power
max. 260 kW
max. 260 kW
max. 520 kW
max. 400 kW
max. 400 kW *)
max. 600 kW **)
Traction
max. 6 kN
max. 6 kN
max. 12 kN
max. 15 kN
max. 15 kN *)
max. 25 kN **)
Measurement
accuracy
2 %
2 %
2 %
2 %
2 %
*) Standard; **) Option

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2.3 Main Switch
•Main switch in position 0: Power supply OFF
•Main switch in position 1: Power supply ON
•When in position 0, the main switch can be protected against tampering
by means of a padlock.
2.4 Remote Control
Remote Control
PC Keyboard
1
Use this key to activate the lifting bar. It can then be operated with the
cursor keys.
F3 + Cursor keys
2
Switch fan on / off
F2
3
Deletes an entire line
4
Selection of a menu item
(In combination with the function key F5 and the cursor keys target
values can be increased or decreased in some menus.)
5
Confirmation of inputs
Return
6
Deleting the character before the cursor position
Discarding of inputs
Backspace
7
Switch over to letter mode
8
Connection for Pedal force sensor
9
In some menus special functions can be opened. The key assign-
ments vary in the different menus. Four boxes with diverse functions
are located on the lower screen edge in these menus. These options
are selected with the function keys F5 to F8 on the remote control. If
the button bar has further levels, these can be displayed using the
cursor keys.
F5 to F8
10
Use this key to activate the load simulator. It can then be operated
with the cursor keys.
F4 + Cursor keys
11
Use this key to activate the roller set adjustment. It can then be
operated with the cursor keys.
12
Switch on remote control
13
Exit a program part
14
Input of a comma
The functions of the program can also be selected via the remote control. The remote control
can be operated directly from the vehicle.
The signal is transmitted by radio. The receiving antenna for the signal is located in the desk.
Should several dynos each with its own remote control be operated in one room, the remote
controls must be set to different channels.

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As soon as the remote control is switched on and radio connection to the dyno exists, the green
control lamp will light up permanently on the operation desk. The green control lamp will blink
briefly each time a key is pressed.
When not in use the remote control should always be stored in the re-charging box to avoid a
total discharging of the battery. The re-charging box is equipped with a "re-charge overload
protection”. The re-charging time for a fully discharged battery is about 12 to 14 hours. During
the re-charging procedure the red LED on the re-charging box will light up and "Battery
recharging" appears on the display of the remote control.
To switch on the remote control press the ON key. The remote control has an automatic switch
off (Timeout) which can be variably set. The remote control switches off when no key has been
pressed during this time.
The letters on the remote control can be selected by pressing the SHIFT key. Press again to
return to the normal operation mode. The display "SHIFT" appears in the window when the
SHIFT key has been pressed.
The remote control keyboard consists of two pads: Function key pad + Number pad.
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