Bridgeport Manual to CNC conversion...

[Davek0974]

Ok, got it wired and powered up.

Little snag to start with, i'm a bit rusty here....

When you take Mach out of reset, the servo starts creeping without command, anyone give a pointer as to where i start digging??

It does not creep for long as you get an ePid fault.

Thanks :)

[m_c]

It sounds like the drive is enabled, but not under closed loop control, so it's creeping until a following error gets triggered.

The drive shouldn't be getting enabled until the servo loop is active, and able to control things.

[Davek0974]

Hmm, I followed the same wiring style as the other axes, the drives all enable together from one signal.

Is that the loop between the servo and controller?

Maybe check the connections in the servo cable, that was a pre-made one that came with the motor and controller.

[m_c]

Is the +/-10 connected correctly, and the drive configured to use the correct analogue input?
And is the CSMIO configured to use the correct channel?

[Davek0974]

AFIK yes, i'll double-check the setup tomorrow night.

I'm setting up as the C axis or channel 5 on the CSMIO.

I'll try disconnecting the -10/0/10v lines to see if creeps on its own.

Dave

[Davek0974]

Is the +/-10 connected correctly, and the drive configured to use the correct analogue input?
And is the CSMIO configured to use the correct channel?

Kudos to you - i had the encoder on C axis but analogue on A axis :)

Its running now, needs more tuning as it oscillates when it stops after homing.

Not sure what axis is best, the 2010 screen set seems to be set for XYZA but a good friend advised C axis was more aligned with the Z axis.

At least its alive :)

[Chaz]

Page 39 of the current CS Labs IP-A manual .....

[Chaz]

Ok, got it wired and powered up.

Little snag to start with, i'm a bit rusty here....

When you take Mach out of reset, the servo starts creeping without command, anyone give a pointer as to where i start digging??

It does not creep for long as you get an ePid fault.

Thanks :)

Enable 'HV Enable' in Mach3 CS Labs plugin. Use the output to drive a relay that enables your drives.

If E Stop or limit is hit, HV Enable will go away and by default your drives will dead stop (remove enable from them). This is what I do on Thor and I have done on other conversions.

[Davek0974]

Thanks, I use a supply line e-stop Pilz safety relay and main contactor and safety circuit, its totally separate from the controller for extra safety. It kills power to all drives and the spindle in use but leaves the controller and PC active.

Its running now though.

[Chaz]

Thanks, I use a supply line e-stop Pilz safety relay and main contactor and safety circuit, its totally separate from the controller for extra safety. It kills power to all drives and the spindle in use but leaves the controller and PC active.

Its running now though.

Problem is that the drives will creep unless you can find the bias sweet spot on the drives.