SICK Ranger3

10 Troubleshooting
10.1 Over triggering
When you use Ranger3 with an external line trigger source it is possible to overtrig the
camera. This means that a new trigger arrives before the sensor can acquire new data.
When configuring Ranger3, the max value of the AcquisitionLineRate parameter indicates
how fast the camera can be triggered. If the trig rate exceeds this, an overtrig occurs.
When a single overtrig occurs, the triggering of the profile is delayed until the sensor is
ready. If several overtrigs occur before the sensor is ready, only the first overtrig will
cause a trig, and the others will be discarded. The camera will signal an error of class
SEVERE with the text "IRQ 9 Sensor overtrig or Internal Scheduling error". This is also
followed later by INFO messages giving details of the error. The details can be logged
for further error analysis by technical support but contain no further user information.
If overtrig occurs when it is not expected there might be noise on the trigger inputs.
10.2 Encoder line trigger setup tips
In the DigitalIOControl section the LineStatus parameter can be used to pull the status of
the digital inputs for the encoder and the frame trigger. This makes it possible to see if
the inputs are switching as expected.
In the EncoderControl section the EncoderValue parameter can be used to see how the
encoder input signals are counted by the camera. The EncoderReset command will reset
the counter to 0.
10.3 Network card settings
For problems related to the network card settings, see "Recommended network card
settings", page 83.
10.4 Rescue mode
If the State LED on the device turns red, it means that the device has entered rescue
mode and does not allow any data acquisition. There are two possible reasons:
•
The device has discovered a problem with the installed application firmware.
•
The device is overheated.
In Ranger3 Studio, select Save last crash log from the Device menu to export a log file with
details about the error that put the device into rescue mode.
To exit rescue mode, try one of the following options:
•
Disconnect and then re-connect the power to the device.
•
In the Parameter editor, select the DeviceControl category and click DeviceReset. The
button is only visible if the visibility is set to Guru.
•
Upload a new valid firmware, see "Updating firmware", page 66.
NOTICE
If the device enters rescue mode at multiple occasions and the reason is unknown,
please contact the SICK support.
10 TROUBLESHOOTING
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O P E R A T I N G I N S T R U C T I O N S | Ranger3 8020774/14IM/2019-07 | SICK
Subject to change without notice