Having issues wit spindle start up.

[kjwalters]

Hello
I am having weird issue with the spindle start up. I am using a smooth stepper board and mach 3. When I punch in the M3 code it starts to spin up then throws and e-stop. I went through and checked the operation of the VFD and spindle manually and they both work fine. Any suggestions on what the issue is?

One other problem I am having is that the pendant is jerky and slow to respond. You turn the encoder wheel and then a slit second later the machine moves. If you turn the when several times quickly and then stop , the machine will continues to move until it reaches the proper position. I am sure this is a setting I am missing. Any help in either of these areas would be greatly appreciated.
Thanks for the help.

Similar Threads:

• Newbie- VMC 4020 start up issues. Help!
• Need Help!- Z axis Cold start issues!
• Spindle Won't Reach Speed after Brake On while Spindle Start
• Problem- EZ-Trak DX II Start-up issues
• 4896 issues... where to start... (Long)?

[ger21]

Probably noise from the VFD/Spindle is triggering the Estop input.

What kind of pendant are you using?

[kjwalters]

Probably noise from the VFD/Spindle is triggering the Estop input.

What kind of pendant are you using?

Hello Gerry, is there a way to change settings to get the spindle working? The pendant I am using is this one
CNC4PC

Thanks for the response.
Jamie

[Christian Knüll]

Hi,

as Gerry already said the trouble with the estop is most likely caused by electromagnetic noise.

Check for proper grounding, use shielded cables between VFD and spindle, add a line filter before the VFD and add a small 100nF capacitor to the estop input (as close to the computer as possible)...

Christian

[kjwalters]

Hi,

as Gerry already said the trouble with the estop is most likely caused by electromagnetic noise.

Check for proper grounding, use shielded cables between VFD and spindle, add a line filter before the VFD and add a small 100nF capacitor to the estop input (as close to the computer as possible)...



Christian

Hi Christian, I used the proper 100% shielded vfd purpose built cable, but I will look into the other suggestions you made. I can get spindle to run fine when using the knob on the VFD itself, just not when using the M3 through Mach3 and smooth stepper. Thanks for the help.
Jamie

[kjwalters]

I just have to say how awesome this forum is. The help you guys give is so much appreciated for new guys like myself. I know it's a headache at times to deal with the newbie and thankless, but keep reaching out, you guys make this hobby more enjoyable. A special thanks to Jeff Alessi that is taking the time over the phone to help me solve my issues. One day i will be able to help someone else with the same issues.