Re: [CAD_CAM_EDM_DRO] Heidenhein problem

Hi Greame

When you say there is no movement from the Z axis - Does this mean that the
machine won't even move to the homing position on power up ??
If that is the case - you have a dead amp. Swap it with one of the other axis
just to confirm the fault.
If the amp is still working, it could be that one of the amp's feedback gains
needs tweeking slightly.

The other alternative is a sick resolver on the Z axis.

Regards, Paul.

On Wed, 10 Jan 2001, Graeme Murray wrote:
> Hi ,
> I am writing to try and help a friend who has a problem with an old model
> Heidenhein TNC155 controller .
> It is a with the Z axis and states
> " Gross position error " before passing the reference marks .There is no
> response from the Z axis.