AMO STU-20 User manual
Manual
Signal Test Unit
STU-20
Software Rev. 2.0
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Signal Test Unit STU-20
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Signal Test Unit STU-20
Table of contents
1. Contents of delivery 4
2. Installation 4
2.1. System Requirements 4
2.2. Software installation 4
2.3. Hardware installation 6
3. Connectors and displays 7
3.1. Front panel 7
3.2. Rear panel 7
4. Functional description 8
4.1. General 8
4.2. Start the program 9
4.3. Select the AMOSIN®-Type 10
4.4. Counter / Meter 12
4.5. Airgap measurement 13
4.6. Oscilloscope function 15
4.7. Signal accuracy measurement 16
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Signal Test Unit STU-20
Contents of delivery1.
The following components belongs to the STU-20:
Signal Test Unit STU-20■
Power supply 12VDC/500mA■
USB-Cable■
4 adapter cable■
1 extension cable■
Software on DC-ROM■
Installation2.
System Requirements2.1.
Operating system: Windows2000 or higher
USB-Port: USB 2.0
Display resolution: 1024 * 768 or higher
Software installation2.2.
It is strongly recommended to exit all programs before running the installer. Start
the le setup.exe located on the CD-ROM delivered together with the STU-20.
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Signal Test Unit STU-20
Initialization2.2.1
Please wait while the installer initializes.
Destination directory2.2.2
Select the installation directory for the STU-20 software components. As a
standard there is a different path for the National Instruments software. You can
select the same path as for the STU-20 software components if you like.
After that please accept the National Instruments Licence Agreement.
Finishing the installation2.2.3
After the installation has nished please restart the computer.
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Signal Test Unit STU-20
Hardware installation2.3.
After the successful installation of the software connect the STU-20 to the
computer with the USB-cable. The assistant for installation of a new hardware
appears.
Disable the connection to “Windows Update” for this hardware installation and
choose the automatic installation for the software in the next window.
To nish the installation click on the button “Finish”.
Now the STU-20 is installed completely, you can start the program using “Start-
>Programs->STU-20”.
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Signal Test Unit STU-20
Connectors and displays3.
Front panel3.1.
(1) Connector for the measurement system
Pin assignement see Chapter “Pin Assignements -> 12 pin
Connei Connector”
(2) Power-On LED
Led is on, when power supply for the measurement system is
switched on.
(3) Mounting Indicator
Additional display of the Zusätzliche Anzeige der korrekten
Montage des Messsystems (siehe Kapitel „Montagehilfe“)
(4) +5V Adjust
Potentiometer zum Einstellen der Versorgungsspannung des
Messystems auf 5,0V.
Rear panel3.2.
(1) USB-Port
(2) Connector for power supply
Supply voltage: 12 VDC/500mA
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Signal Test Unit STU-20
Functional description4.
General4.1.
The STU-20 offers the following functions:
Selection of the AMOSIN-Type which should be tested.
Indicator for the supply voltage and the current consumption, as
well as a position display for systems with TTL output signal.
Examination of the correct air gap for an mounted measuring
system.
Examination of the output signals with a built-in oscilloscope
function.
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Signal Test Unit STU-20
Start the program4.2.
The program is started over the Windows Start Menu “Start->Programs-
>STU-20”.
As a rst step the initialization of the hardware takes place.
If the STU-20 is not connected with the computer by the USB cable, the pro-
gram stops with an error message “Hardware Init Failed”.
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Signal Test Unit STU-20
Select the AMOSIN®-Type4.3.
By clicking on the button the window for selecting the AMOSIN®-type
appears.
Procedure for selection:
a) Selection of „Typ“: WMK ... Angle measuring system
LMK ... Length measuring system
b) Selection of „Signal“: 1Vss ... analog output signal
TTL ... digital output signal
c) Select the correct AMOSIN®-type from the list.
d) For angle measuring systems only:
Enter the number of pitches per revolution of the ange into the input
eld “Scale; Pitches/Rev”. Example: For a measuring system WMK-
201.10-0512-1-6 the correct Value is 512 pitches per revolution.
e) If the desired selection is done, conrm by pressing “OK”.
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