Encoders - HEIDENHAIN ND 281B User Manual

Position Encoders
The ND 281 B display unit is designed for use with photo-
electrical linear or angular encoders with sinusoidal signals:
primarily for HEIDENHAIN MT length gauges.
When shipped by HEIDENHAIN, the display units are set to the
linear measurement mode.
You can switch between the linear and angular modes by
entering the code number 41 52 63 (see "Linear/Angular
Measurement Modes").
On the back of the display you will find two flange sockets for
connecting the encoder: X1 for encoders with 11 µA sinusoi-
PP
dal current signals and X2 for 1 V sinusoidal voltage signals.
PP
Before shipping, HEIDENHAIN activates the encoder connec-
tion X1 for 11 µA sinusoidal current signals. With parameter
PP
P02 you can activate the encoder input that matches your
encoder (see "Operating Parameters").
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