i cant make this board to work help
i connect all in order (mini board) from video
i fup power connector (i pull 2 wires out of it when i disconnect it from nano) so i change wires to black connectors for each wire and connect it in guide order from usb connector 24v ,g,5v,L that is from left to right looking at it
if usb is on right side .. huh
and when i turn psu on i can manually click laster test it go to 4 ma and back
and that was it
no led light on board
i connect it 1st with usb out of k40 and i did not get led on
did i fup board or ?
help
a bit update i just read i for jumper ..so i switch to usb 5v and card start to work
it connect to lb but cant move anything
got alarm 8 i did on that $X and it unlock but no move $Y same
and i got error 9 now
got 20v from psu (19.72-5) 4.92-5 from other)
when i do $27=3 switch x y work
y motor start to humm but wont move .do i need to test driver power level ?
edit
i did move him in to x switch again and ? and got this
<Alarm|MPos:-480.000,-480.000,480.000,0.000,0.000|Bf:15,253|FS:0,0|WCO:0.000,0.000,0.000,0.000,0.000>
ok
and from now i dont have clue where to go
help
it show wrong pos how i see it but ?
now i did $27=4 (have these magnetic switches)
and i move in middle and left i engage switch
and did ?
i got this for respond
<Alarm|MPos:4.000,4.000,-4.000,0.000,0.000|Bf:15,254|FS:0,0|Pn:XYZAB|WCO:0.000,0.000,0.000,0.000,0.000>
and home error 9 again
and y motor buzzz but not move i guess y go down 1st and click switch then x
now to wait till someone get idea what to do
oh our all el appliances are grounded by default ,by law they must have ground
so that was not problem ..
i still think maybe drivers send low power but ?
left was 0.61 right 0.65
i guess it was ok .. but why wont move nano board work ok
Hi, It seems a lot of things are going on all at once so better debug it systematically.
From the last message I see that the position is 4.00 (pull off is 4 mm) and the limits are triggered.
Have you tried to put the gantry in then middle of the work area and read out the limit switch statuses? If the limits are triggered then you might need to invert the limit switches ($5).
What version of K40 are you using (Ribbon or non-ribbon cable version)?
If you unlock, the motors still don't turn when you give command? (move arrows in LightBurn)
Ok let's see what your answers are so we can pin point it better
Cheers, PAul
ribbon
vref for drivers are same 4.69 v on screw 0.6 and 0.65
on psu wire it's 19.6 v
i think this msg is from middle
<Alarm|MPos:-480.000,-480.000,480.000,0.000,0.000|Bf:15,253|FS:0,0|WCO:0.000,0.000,0.000,0.000,0.000>
ok
did it again it show 4 not 480 for all 3 and rest is same
when i $x i press move left right it just say stream complete ok nothing move ..
so he get 5v not 20v
first pin is 24v from usb i look again and it is and 4th from right again usb side on psu
dont understand where it loose power
anyone know what to do ?
Hi, basically you established the issue being no power being delivered to the board. Now it is methodically stepping thru the various points with a multi-meter (volt) and measuring each till you find zero volts.
Starting at the connector on the board. After that you can measure on both sides of the PTC fuse on the board F2 and the step stick driver it self. See attached images for the location of the measuring point.
Uploaded files:
F2 is 19.7 v
gnd on driver to vdd 5.1v / 5.11v
gnd on driver to vmot 4.75v /4.76v
what next ?
i look on reprap and polplu forums cant find reason why driver dont have power
grr
well atleast wont burn my finger again 🙂
so is anyone live in here ?
where i can find that f2 fuse ?
it died yesterday ,,was have erratic 0 / 19 / 0 then just 0000
what are specs i need for f2 PTC fuse ?
i find some like
63v 3a and variation on 63v 1-5 a
ESKA SMD 1206 3 A 63 V
and 30vac 2a smd from this site
https://www.conrad.com/search?search=PTC%20fuse&searchType=regular
and load from poland
this site
https://www.tme.eu/hr/en/katalog/polymer-ptc-fuses_113034/#
just need specs so can order one and replace it
sorry for late update i change drivers and steppers now work .. fuse is ok i guess and have power
just bad drivers yeey
but now i have something strange goin on
he start homing and soon he hit y it wont to stop just banging on end
what to do now ?