Filament sensor wiring error  

Re: Filament sensor wiring error

Same problem. They sent me a new sensor and no help. On hold for chat to see if they have additional suggestions. Seemed to happen to me while I was fixing a bed thermistor that tore away from bottom of bed. Also updated firmware and have not been able to calibrate since. I'll be sure to post here if I find a solution. Looks like lots of other share our pain.

David.

Re: Filament sensor wiring error

Same problem here. After combing the web, this appears to be a little more common that I originally thought. I've reached out to them by email, so hopefully they will sort my issue out soon.

Re: Filament sensor wiring error

UPDATE: I have NOT solved my problem yet, but I think I am zeroing in on it. Apparently, I had my board connection from the filament sensor incorrect from the time I built the kit. When I first emailed the problem, support asked for pictures of my connections. The board connection was shifted to the right 1 pin, meaning the red wire was connected to NOTHING. I didn't catch it and neither did support.

They did send me a new sensor. I installed it and at the same time corrected my wiring error. I can't recall if I corrected the connection before, during, or after I powered up the new sensor. While chatting with support again, it became obvious that I had probably fried my new sensor (though there is no physical evidence that I had done so, not surprising). I went ahead and ordered another sensor.

I should have checked for 5VDC on the red wire at the sensor, and ground on the black wire with my multi-meter. That would have proved the board connection was correct. I did check continuity for the other 2 wires so there is at least a connection there.

I will post the results of the new sensor installation once I receive it. Support did recommend turning off the sensor using the LCD control panel, Settings->Fit Sensor. They then said I can manually calibrate by first calibrating the Z axis, then XYZ calibration, then first layer calibration. They said I should be able to use the printer without the filament sensor features.

Thoughts? Other suggestions?

Re: Filament sensor wiring error

My problem was finally solved. Looks like I fried the first and second sensors. The 3rd one I ordered came in and after triple checking my wiring, I installed it and ran the test. Wiring checked out and the calibration went well.

Suggestions if you are having this problem:

1) Triple check your wiring connections to the sensor, especially at the computer box end.

2) Test the power output to the sensor and wire continuity of the cable from the sensor to the box.

3) Be sure you the new sensor is connected correctly BEFORE you power up the new sensor.

Re: Filament sensor wiring error

Newest kits have a printed insert in the connector to assist with alignment.

For reference, the filament sensor is oriented on the board with the red wire towards the OUTSIDE of the board, and on the LOWER set of pins.


Filament Sensor Connector on Einsy Mainboard
___ ___
| ..... |
| ..... | <--Red Wire on this end, be sure to align the connector!
-------
^---Filament sensor occupies lower row of 5-pins


Re: Filament sensor wiring error

The printed insert is a bit strange, it still allows you to put it on the top row of pins.

Re: Filament sensor wiring error

The printed insert is a bit strange, it still allows you to put it on the top row of pins.

Same problem, I assumed the insert would prevent me from inserting the plug wrong, wrong, sensor error due to plug being in top row instead of bottom row.

RE: Filament sensor wiring error

I did not remove the wire from the board, only on the side off the extruder. Maybe i connected the wire the wrong way when i put it back after repair. I will order new cable and sensor to be sure

RE: Filament sensor wiring error

the printed insert is intended to aid alignment of both the Filament sensor connector and the MMU Connector, which is why it guides you into the socket for both connectors. 
If it blocked the MMU Pins, there may be issues later because either the guide could be inserted upside down and prevent insertion of the Filament sensor connector on the correct pins, or it could be difficult to remove when an mmu was to be added later, leading to dissatisfaction. 

regards Joan