Hi All,

Can anyone help?

I have a Hardinge CHNC1 with a Siemens Genumerik 810T control, I have recently re-installed the commissioning data/Parameters after loosing data thro battery back up failure,

My problem is that when I try to "Home" the machine (as per commissioning instructions) the Z axis just runs to the hard limit and stops with an alarm? "reference point not reached"............. it will not reference?

I did change the Z axis toothed drive belt before commissioning, could this have upset it? Both axis seem to be ignoring the soft limits and driving to the hard limits?
I removed the servo to do this obviously, but did note the wire positions, I am now starting to wonder if I have wired it correctly, I have checked against a schematic and all looks good, so I sure I have wiring correct,

Any ideas anyone, Thanks in advance for any help,

Allen.

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