Spindle being awkward.

[magicniner]

Stick a meter across the 0-10V and see what that says?
If you're getting voltage drop then it's the output from your BOB so stick the meter across the power supply to the BOB and see what that's doing.

- Nick

[JAZZCNC]

Need more info.

Parallel port or Motion controller.?
What spindle speed controller/BOB.?
What terminals have you connected to on VFD.?

Pics always help.!

[MPH100]

Thanks Dean
I have Ess connected to cheap bob similar/same to the ones Emvio Eng recommend.
This picture shows spindle running 12000rpm 4.14 volts at the vdf connections, so looks to me like the relay is misbehaving ?
Sorry despite trying for half an hour I cannot get pics to upload, if needed will try from my house later.
Mick

[MPH100]

PS have checked connections FOR-DCM and V1-ACM checked and double checked.
When rapiding around there is no volt drop.
Mick

[JAZZCNC]

have you set the Pulley ratios.?

[MPH100]

Dean
Pulley no4 max speed 24k ratio 1
Mick

[MPH100]

Have set decel quite high and under mdi stops quick it is the same under jog and program.

[JAZZCNC]

Have set decel quite high and under mdi stops quick it is the same under jog and program.

Hey are we talking about the spindle or Motor tuning here.? They should have no affect on each other.

Jog should not affect the spindle in anyway what so ever. Similiar in MDI only commands that should affect Spindle is M3/M4/M5 and S (speed).

Asked before can you post picks or show drawing of exactly how you connected because something is very wrong.

Also Either show how you have Mach3 setup or Zip up your XML file so can take look.

[MPH100]

I have tried to upload xml file but keeps failing.
I have done some more checking and the relay on the bob switches when any of the jog buttons is pressed I cannot work out how the relay is controlled.
Thanks for your reply

[MPH100]

This might help I am getting 23.5v across the FOR connector on the vdf when I press jog.