National Instruments NI CVS-1450 Series User Manual

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Appendix A
Troubleshooting
© National Instruments Corporation
A-5
POWER OK LED Is Not Lit When the CVS-1450 Device 
is Powered On
If the power supply is properly connected to the CVS-1450 device, but the 
POWER OK LED does not light up, check that the power supply is 
24 VDC ±10% and within the specifications outlined in Appendix B, 
. Using a power supply that is not within these specifications 
might result in an unresponsive or unstable system and could damage the 
CVS-1450 device.
Table A-1.  STATUS LED Flashes and Corresponding Error Conditions
Number 
of Flashes
Error Condition
0 (stays lit)
The CVS-1450 device has detected an internal error. 
Contact National Instruments for assistance.
1
The CVS-1450 device is unconfigured.
2
The CVS-1450 device has detected an error in its 
software. This usually occurs when an attempt to 
upgrade the firmware is interrupted. Repeat the 
firmware upgrade process.
3
The CVS-1450 device is in Safe mode.
4 (or more)
The CVS-1450 device has detected an unrecoverable 
error. Contact National Instruments for assistance.