55 Piranha 2 User’s Manual
03-032-00493-14 Teledyne DALSA
Verify Voltage
To check the camera’s inpu t voltages an d intern al voltages, use the vv command. If they
are within the proper range, the camera returns OK>. Otherwise the camera returns an
error message.
Verify Temperature
To check the internal temperature of the camera, use the vt command. For proper
operation, this value should not exceed 75°C.
Verify Pixel Coefficients
To activate video correction, send the command svm 1. Then use the dpc command to
display the pixel coefficients in the order FPN, PRNU, FPN , PRN U… The cam era also
returns the pixel number with each coefficient.
End-of-line Sequence
To further aid debugging, the camera can generate an end -of-line sequence. The end-of-
line-sequence outputs "aa", "55", "line counter", "line average", "pixels above threshold",
"pixels below threshold". To activate the end-of-line sequence, use the command els 1.
To disable the end-of-line sequence, use the command els 0.
Use the sut and slt commands to set threshold values between 0 and 255 for 8-bit data
modes, or 0 to 1023 for 10-bit data modes.
LED Status
Located on the back of the camera is a red/ green LED used to display the operational
status of the camera. Red lights indicate errors or warnings and green lights indicate
progress and OKs. Error and warning states are accompanied by corresponding messages
further describing current camera status.
Monitoring Tasks
The camera enters a warning state when any of the camera's continuously running
monitoring tasks detects a failure. Use the wed command to display the status of all the
defined monitory tasks (if no parameter is passed) and/ or to enable/ disable specific
monitoring tasks.
6.3 Specific Solutions
No Output or Erratic Behavior
If your camera provides no output or behaves erratically, it may be picking up random
noise from long cables acting as antennae. Do not attach wires to unused pins. Verify that
the camera is not receiving spurious inputs (e.g. EXSYNC or PRIN, if camera is in
exposure mode that regulates external signals).
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