National Instruments NI CVS-1450 Series - Manual (Page 71)

Appendix A Troubleshooting
NI CVS-1450 Series User Manual A-4 ni.com
Cannot Drive Isolated Outputs
Verify that you have power connected to Viso and Ciso inputs on the
CVS-1450 device power connector and that the contact at the screw
terminals is solid. Because these outputs are electrically isolated from
the CVS-1450 device main supply, they require power in addition to the
CVS-1450 device main supply.
Runaway Startup Application
If a runaway startup application causes the CVS-1450 device to become
unresponsive, power off the CVS-1450 device and then restart it with either
the NO APP switch or the SAFE MODE switch in the ON position.
Restarting the 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 CVS-1450 device in Safe mode and does not launch the
embedded LabVIEW RT engine. Refer to the
DIP Switches section of
Chapter 3, LEDs, DIP Switches, and Connectors , for more information
about these DIP switches.
System Displays a Missing Operating System Error at Startup
The 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
CVS-1450 device by pressing the RESET button for at least two seconds.
LED Error Indications
The CVS-1450 device indicates specific error conditions by flashing the
orange STATUS LED a specific number of times. Table A-1 describes the
STATUS LED flashing sequences and the corresponding error condition.