Large format UV flatbed

[Chrb]

Hello all ,
I hope I can fine someone who can help me in this.
I'm working on Chinese large format UV flatbed , with Ricoh gen5 Printheads and BYHX board and Printmanager control software.
my problem is when I turn on the machine on the self test , the X,Z works fine but on Y it gives direct error and not moving.I checked all the limit sensors and emergency sensors all working fine.
any suggestions.
thanks a lot

 

[Smoke_Jaguar]

Time to pull out the multimeter and get to troubleshooting.

 

[Chrb]

Thanks Jaguar,
I tested everything single wire and the 2 Y's motor has power , if you try to turn it by hand it wont move and the encoder reading good according to the servo motor controller display screen, but still not moving , I checked all the Limit switch's all are fine

 

[netsol]

Take the motor out & see if it turns “no load”

see if it turns by hand out of machine

 

[richsweeney]

It may have a hall sensor on the right sight of the gantry, make sure the red light is on, if not replace it. If not that make sure you have the electrical schematic and call your favorite local electrical tech.

 

[Chrb]

Thank you all for the reply.
If the machine is OFF the motors turn very smoothly by hand no load at all .
I will attach a Photo for the motors and the control server for the motors its Y left , Y right , X .
if I turn the Y by hand the control display numbers change

 

[Smoke_Jaguar]

Looks like pretty decent parts in the machine, copies of higher end gear, but still quite decent. Here's a video that shows how to do a jog/test on the servo.

If the servo jogs fine, check the wiring to the driver.

 

[Chrb]

Thank you very much Jaguar , This is all what I need , I will make the test tomorrow and I will let you know the result .
Thank a lot man

 

[Chrb]

I tried the Log test but i got an error after press the button to lock the motor .

 

[Smoke_Jaguar]

Check the wiring from the controller to the servo. Might be a bad servo or a wire lug cameoose. Or potentially controller issues.

 

[Chrb]

Check the wiring from the controller to the servo. Might be a bad servo or a wire lug cameoose. Or potentially controller issues.

i tried both side they gave same result , the Left and Right

 

[Smoke_Jaguar]

Might need to try and find a manual for the stepper driver, some require different modes to do jog tests.