HEIDENHAIN ND 287 User Manual - Manual (Page 74)

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II Installation, specifications
II – 2 Installation Set
u
p
Absolute encoder
Using an absolute multiturn rotary encoder as a linear encoder
 Select the multiturn rotary encoder input in the ENCODER SETUP
form and press ENTER to confirm.
 Select LINEAR in the ENCODER TYPE field and press ENTER to
confirm your selection.
 Enter the ball screw pitch in mm in the SCREW PITCH field and
press ENTER to confirm your entry.
 The multiturn rotary encoder will now be handled as if it were an
absolute linear encoder.
Fig. II.16 Absolute encoder form
Fig. II.17 Example of electronic ID label
Fig. II.18 Screw pitch form
For absolute encoders with EnDat interface, you can only
define the COUNT DIRECTION and the ERROR
MONITOR
.
All other fields in the ENCODER SETUP form show
information that has been transferred from the encoder.
Press the ENDAT ENC. FILE soft key to display the
encoder's electronic ID label. In this form, you can cancel
an existing datum shift by pressing the CANCEL DATUM
SHIFT soft key.
When an EnDat 2.1 interface is used, the resolution is
limited, because the incremental signals are ignored.