HEIDENHAIN ND 1200R - Manual (Page 66)

66 2 Installation and Specifications
2.3 Sof
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p  Highlight the Type choice field and then press a soft key to select
the encoder type.
 Highlight the Ref Marks choice field and then press a soft key to
select the encoder reference mark type.
The M.Z. Cnts (Machine zero counts) data field is rarely used to specify
an offset from the machine zero position created by crossing encoder
reference marks.
Custom machine zeroes are rarely used because datums are always
established before performing measurements.
 To specify a custom machine zero, highlight the M.Z. Cnts data field
and enter the machine zero offset in machine counts as determined
by: Machine counts = DRO value/encoder resolution.
Select the encoder type Select an encoder reference mark type Enter machine zero offset counts if
required