Remove all stepper driver modules and try again.
Also check if 15V is present at the screw terminal.
From what I have been reading it sounds as if the 5 volt regulator is dead.
If you unplug therm 1 or 2 apply power and measure the pins on the board you should see 5 volts or very close.
Since the 2 LEDs are on with the USB plugged in and the power on says that the CPU on the board is not getting power.
Hi, I have removed the Z stepper, now I can move Y axis, X axis just rattles and vibrates but does not turn, Z axis does nothing and the E motor does nothing, have set all motors between 0.42 and 0.55, hotend works fine hotbed says heating up but does not feel warm or hot to touch, on E motor pins, middle 2 are reading 15.84v, on the Z motor pins I get no voltage read out at all.
With removed stepper driver yo cannot have voltage on the z motor connector.
Recheck your motor wiring.
On the connector plug the left ad right 2 pins should be paired an have a resistance of 2-4 ohms.
Is that true for ALL motors?
Hi, if that’s correct, then I have a faulty board, because as soon as I replace the stepper the board no longer works and that happens where ever I replace the stepper
Yes, it soundsyour stepper driver module is bad.
But if the other axes don’t work when it is pulled off, there are some other faults anyway.
Did you measure the resistance of the Motors at the plugs?
Hi, I’m not sure how to check that reading, can you make it clearer, what setting on multimeter, top 2 pins on either side reading across the pins or the 2 pins on either side together
Hi, I get a measurement of 1.2 ohms on top 2 pins (ground and dir), and 10 on the next 2 pins down (VDD and step) this is with multimeter set on rx 1k
No, don’t measure on the controller. Measure on the disconnected Motor plug.
Disconnect the plug and measure the resistance across the left 2 and the right 2 pins.
Both should read 2-4 Ohms.
So set your multimeter to a suitable Ohms range. (don’t know if yours is autoranging)
cheers,
Christian
Hi, right multimeter set to 200k (Omega, greek sign) GNd pin to DIR pin reads 42.3. VDD pin to step pin reads 82.4 this is unplugger sat on my work top
The pins you mention are not connected to the motor.
Where do you measure?
Hi, I thought you meant on the stepper, the little plug I have taken out with 16 pins in, that plugs into the Z motor and has the trimmer on to set motor voltage
No. i meant on the stepper motor connector plug.
Not on the stepper driver and not on the controller board at all.
cheers,
Christian
Hi, right tested the plug at the end of the 4 cables going to stepper motor, when reading settles it is 0
Measured between the 2 leftmost pins (1+2) and also the 2 rightmost pins (3+4)?
like so :
If so, both wire paires have a short circuit.
Hi, thank you for all the help and advice, I think its now time to send the circuit board back to Velleman.
Hi, after sitting up half the night learning how to use a multimeter, I can now tell you the values at the plugs of each stepper motor:
X motor 1.4ohms (only motor working correctly)
Y motor 1.9 ohms
Z motor 2.1 ohms
B motor 2.1 ohms
That values sound ok.
Means, your yotor wiring and the motors are ok.
Which stepper driver did you remove earlier to get the other axes working?
Hi, I removed Z motor stepper, I also have problems with motors if they are plugged into the Y motor socket, then all motors run smoothly, if plugged into any other socket then they don’t turn, just judder,
Can you please post a picture of your controller?
A little youtube video of your problem might also be helpful.
I can’t imagine you have 3 dead stepper modules at once.
cheers,
Christian