Toolboard + NO NPN probe

jay_s_uk

@tecno maybe you need a diode as detailed here https://docs.duet3d.com/en/User_manual/Connecting_hardware/Z_probe_connecting#npn-output-normally-open-inductive-or-capacitive-sensor?
other than that, no idea

infiniteloop

@tecno said in Toolboard + NO NPN probe:

With probe not triggered Prove value is 0 triggered is 0
If I set probe not inverted Probe value is 1000 triggered still 1000

Either you have no signal on the pin, or it is constantly tied to 3.3V by the probe. Check function of the probe stand-alone with a multimeter: What voltages do you read when the probe is triggered/untriggered?

A third possibility might be the port being defective, but first, check your probe signal.

tecno

@infiniteloop

NPN and no 3.3V ! Vin as these need 6-30V

Vin non triggered = out Vin
Triggered = out under 0.6V

So probe is OK

Looks like the Tollboard is busted again

tecno

@jay_s_uk said in Toolboard + NO NPN probe:

@tecno well there you go. use P8 and not P5

Select mode 5 (P5) in the M558 command. Invert the probe output From the manual you linked !

jay_s_uk

@tecno https://docs.duet3d.com/en/User_manual/RepRapFirmware/CAN_limitations
only P8 and P9 can be used on CAN boards

tecno

@jay_s_uk

Doh... too many variables so confusing it is.

How can i check port that it is working? Short GND to INP or 5V?

Set it as P8 so I can see Probe value 0 or 1000

infiniteloop

@tecno said in Toolboard + NO NPN probe:

Vin non triggered = out Vin

Do I understand this right: The signal has 6-30V non-triggered?

tecno

@infiniteloop

Yes

infiniteloop

@tecno said in Toolboard + NO NPN probe:

Yes

Then you've fried the port.

tecno

@infiniteloop

That is what I suspect, not the first toolboard to go south on me.

infiniteloop

@tecno said in Toolboard + NO NPN probe:

How can i check port that it is working? Short GND to INP or 5V?

Yes, you can short GND to INP. Does this trigger the endstop?

tecno

@infiniteloop said in Toolboard + NO NPN probe:

@tecno said in Toolboard + NO NPN probe:

How can i check port that it is working? Short GND to INP or 5V?

Yes, you can short GND to INP. Does this trigger the endstop?

not shorted = value is 0
shorted = value is 1000

So go figure what is wrong, I only have 1N4148 diode's at hand no BAT´s

infiniteloop

@tecno said in Toolboard + NO NPN probe:

not shorted = value is 0
shorted = value is 1000

That's good news, the board still works. Your test means that the probe doesn't pull down the signal strong enough to trigger. Try the diode - according to the documentation, this might work:

The diode should preferably be a small-signal Schottky diode such as BAT43 or BAT85, but a small signal silicon diode such as 1N4148 works for some people.

tecno

@infiniteloop

Already tried the diod = no go

infiniteloop

@tecno Hm, I'm guessing, but maybe a pull-down resistor between GND and INP might help. Can't tell you a value, though, but I would start with something like 10k - and go down until the probe triggers reliably.

martin7404

I syrongly sugest using NC probe

; Z-Probe
M671 X-31.39:250:531.36 Y-18:433.3:-18 S10       ; Locations left, center, right   
M558 P8 C"121.io2.in"  H3 F1000 T6000 A20 S0.005 ; PINDA set Z probe type to switch and the dive height + speeds

This is for my superpinda with duet 3 and toolboard

tecno

I found one PNP that I now have tried = same issue.

Found other with better sense distance that I prefere.

IFS208-00_EN-GB.pdf

How do I connect this one, if possible the 2 wire Vin + io0 in ?

dc42

@tecno if shorting input to ground changes the Z probe reading from 0 to 1000 then an NPN output probe connected correctly should work. You do not need to use a diode.

Are you sure it is NPN output?

Are you sure you have connected it correctly?

Does it have a LED on it to indicate when it is triggered?

tecno

@dc42
Label says NPN NO

std coloring on wires BN to +, BK out and BU to -. Load BK to BN so it should be NPN right?
Vin to BN
GND on 121.io0 to BU
BK to 121.io0 input

Yes LED indicates Trig

Tried without and with 1N4148 Diode, Inverted - Non inverted - Pull up no pullup

tecno

Now I have yet another probe = IFS208 and now it works.

Suspect these bloody mini crimp connectors again = they are not up to par what is needed for a good connector.

So a Toolboard V2 with new bigger common crimp connectors PLEASE. I see no need to scale down this board to be hard to work with. I suggested earlier that toolboard to be delivered with pre crimped pigtails.
All in all it is too wimpy with the assembly with board connector housing not properly seated.