HowTo - Resolve 3D sensor errors

HowTo - Resolve 3D sensor errors

The sensor in 3D AIR (Model 2012, former 3D TERMINAL) is not working stably and sensor runtime issues are reported regularly

Solution

If firmware is not able to load sensor at startup or report sensor run-time issues (error codes 42/412/414), it may have several reasons ranging from objects within the sensor cavity up to wrong sensor FPGA initialization after device re-power without proper shutdown. To recover the device from this state please follow carefully the below step-by-step procedure, in the mentioned order:

(1) Check / Clean sensor cavity

Please check first that the glass cover inside the sensor is clean and there is no object inside the sensor that may affect the camera view. If device firmware detects camera issues it automatically blocks the sensor and reports an error.

If the inner glass body needs to be cleaned please safely shutdown the device, open it and clean the sensor cavity as described in the installation manual or in the KB article here: How to clean the vitreous body of 3D Terminal

(2) Re-power device safely

Please safely re-power the device in below manner:

  • Shutdown the device using DeviceConfig web interface (under 'Maintenance') or admin pages.
  • Power-off the device for ~20s.
  • Re-power the device.

Afterwards, the error message should not occur anymore. In case it does please follow the procedure again and make sure the devices are not shut down by just removing power. 

Its important that device is shutdown & re-powered and not just rebooted. The reboot won't help because it doesn't re-initialize the sensor module.

(3) Check USB plug of the sensor cable

When unplugging the micro-USB plug of the sensor it might happen that the plug cover (silver metal protection) is sliding outwards. When such a plug is then re-inserted but not pushed forward to its original position, it can happen that the plug contacts do not reach the plug socket. The 3D AIR then cannot detect a sensor at all. Please check if the plug cover is in the correct position before connecting it, as shown in this picture:


(4) Switch sensor USB port

If (1) and (2) did not help please connect the sensor to a different USB port. To prepare that step please shutdown and power off the device, then open it to get access to the main processor board.

According to the image below please switch the sensor USB cable from red port to one of the spare ports, indicated by yellow circle:


Repower device when done. 



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