National Instruments NI Vision CVS-1456 User Manual page 55

Appendix A Troubleshooting
Cannot Drive Isolated Outputs
Runaway Startup Application
System Displays a Missing Operating System Error at Startup
NI CVS-1450 Series User Manual
• Watchdog timer expired while configured for the system shutdown
option
– Determine if the interval between watchdog timer resets is
insufficient for the processing time. Check the software to
determine if it could monopolize the processor.
• Processor overheat
– Make sure you are operating the NI CVS-1450 device in
compliance with the temperature specifications in Getting Started
with the NI CVS-1450 Series Compact Vision System.
Refer to Table 3-4, Configuration Settings and
information about fault conditions.
Verify that you have power connected to V
NI CVS-1450 device power connector and that the contact at the screw
terminals is solid. Because these outputs are electrically isolated from
the NI CVS-1450 device main supply, they require power in addition to
the NI CVS-1450 device main supply.
If a runaway startup application causes the NI CVS-1450 device to become
unresponsive, power off the NI CVS-1450 device and then restart it with
either the NO APP switch or the SAFE MODE switch in the ON position.
Restarting the NI CVS-1450 device with the NO APP switch enabled
prevents any VIs from running at startup. Restarting with the SAFE
MODE switch enabled starts the NI CVS-1450 device in safe mode and
does not launch the embedded LabVIEW RT engine. Refer to the
Switches section of Chapter 2,
more information about these DIP switches.
The NI CVS-1450 device was powered on or reset with all DIP switches
in the ON position. Set the DIP switches to the off position, and reset the
NI CVS-1450 device by pressing the RESET button for at least two
seconds.
iso
LEDs, DIP Switches, and
A-4
Effects, for more
and C inputs on the
iso
DIP
Connectors, for
ni.com