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8 TROUBLESHOOTING
8.1 GENERAL SOFTWARE ISSUES
Q1 When I try to open a QNET VI, it says there are some missing VIs and they have a ''CD'' or ''Sim'' in the
name?
The LabVIEW Control Design and Simulation Toolkit is not installed.
Q2 When I open a QNET VI a message prompts that a VI with ''ELVIS'' in the name cannot be found?
• ELVIS I: The QNET VIs use drivers that are installed from the ELVIS 3.0 or later CD. Make sure it
is installed. If the folder ''\National Instruments\NI ELVIS 3.0'' does not exist then it is not installed
(available for download at
• ELVIS II: The QNET VIs use the ELVISmx drivers. Make sure you install the contents of the ELVIS II
CD before attempting to open any of the QNET VIs (available for download at
8.2 GENERAL HARDWARE ISSUES
Q1 None of the LEDs on the QNET board are lit?
Make sure both the System Power switch, which is located on the back of the ELVIS I and II units, and the
Prototyping Board Power switch, which is situated on the front panel of the ELVIS I and on the top-right
corner of the ELVIS II, are ON. See the QNET Setup Guide for more information.
Q2 On the QNET board, the +15V, -15V, and +5V LEDs are bright green but the +B LED is not lit?
Ensure the QNET power connector on the QNET board is connected with the supplied QNET power
cable. See the QNET Setup Guide for more information.
Q3 At least one of the +B, +15V, -15V, and +5V LEDs on the QNET board is not lit?
See Q2 if only the +B is not lit.
If one or more of the +15V, -15V, and +5V LEDs is not lit then a +/-15V or +5V fuse(s) on the Protection
Board of the NI-ELVIS I is burnt. Similarly, if the +B LED is still not lit after connecting the QNET power
then the Variable Power Supplies Fuses on the ELVIS Protection Board are burnt. See the Protection
Board Fuses in the NI ELVIS User Manual and replace the fuses as directed.
Q4
The Ready LED on the ELVIS II does not go on?
www.ni.com
as well).
www.ni.com
QNET MYOELECTRIC- User Manual
as well).
18
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