HEIDENHAIN ND 100 User Manual - Manual (Page 77)

ND 120 QUADRA-CHEK 77
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p  Highlight the Ref Marks choice field and then press the List soft key
to display the reference mark choices. Highlight the required
encoder reference mark type and press the ENTER key.
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.
 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.
Notice
Reference marks must be used if SLEC or NLEC error
correction will be performed later. Error correction is
discussed later in this chapter.
Select an encoder reference mark type
from the list Enter machine zero offset counts if
required