C-18
Systematic Problem Isolation
KPCI-3110 and KPCI-3116 User’s Manual
Analog output hardware test
This test applies only to a board having analog outputs.The analog output test checks whether
the two digital-to-analog converters (DACs) of the board are working correctly. Zero voltages
are set at the two analog outputs, using the on-screen level control utility that is supplied with
DriverLINX. The two output voltages are then measured with a digital voltmeter to verify rea-
sonable DAC offsets. Similarly, a mid-range voltage is set for each of the two analog outputs and
the procedure is repeated to verify proper digital to analog conversion.
NOTE
During this test, ensure that no user circuits are connected to the
KPCI-3110 or KPCI-3116 board, via the required screw terminal acces-
sory, except for analog output connections specified for the test.
The analog output test is primarily a functional test, not a calibration
check, although measured outputs from a properly calibrated board
should correspond to DAC settings, within the accuracy specifications of
the board. If you wish to check and adjust the accuracy, refer to
Section 5
, “
Calibration
.”
Equipment for the analog output hardware test
The following equipment is required to perform the analog output test:
•
A Digital Voltmeter (DVM) or a Digital Multimeter (DMM) set to the 10V range.
•
An STP-3110 screw terminal accessory, to which you connect the DVM/DMM as indi-
cated in
Table C-2
.These are the same connections as made for the analog output
soft-
ware
test.
If possible, use a screw terminal accessory that is reserved for I/O tests. Avoid using a
screw terminal accessory that is normally connected to your external circuits. You
thereby avoid the extra labor and potential wiring errors involved in disconnecting and
later reconnecting your external circuits.
Table C-2
Terminals on STP-3110 screw terminal accessory to which DVM/DMM will be
connected during analog output hardware test
To check this analog
output…
…the DVM or DMM will be connected to these terminals
Analog output
screw terminal
Analog-ground screw terminal
Analog output 0+ [pin 5]
TB41
TB50 [pin 26]
Analog output 1+ [pin 4]
TB43
TB50 [pin 26]
Содержание KPCI-3110
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Страница 16: ...Preface...
Страница 20: ...1 Overview...
Страница 25: ...2 Functional Description...
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Страница 61: ...3 Installation and Configuration...
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Страница 86: ...4 Testing the Board...
Страница 89: ...5 Calibration...
Страница 92: ...6 Troubleshooting...
Страница 99: ...A Specifications...
Страница 111: ...B Connector Pin Assignments...
Страница 116: ...C Systematic Problem Isolation...
Страница 143: ...D Using Your Own Screw Terminal Panel...
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