HEIDENHAIN ND 780 - Handbuch (Seite 208)

84 II Technical Information
II - 1 Installation, and Electr
ical Connection
Connecting the Encoders
ND 780 can be used with HEIDENHAIN linear, and rotary encoders
that provide sinusoidal output (11µA
PP
, or 1V
PP
). The encoder inputs
on the rear panel are designated X1, X2, and X3.
The connecting cable must not exceed 30 m (100 ft.) in length.
Pin layout for encoder inputs.
Do not engage, or disengage any connections while the
unit is under power.
D-sub connector
15-pin Input signal
11µApp Input signal
1 Vpp
1 DC 5 V DC 5 V
2 0 V 0 V
3 I1 + A+
4 I1 - A-
5 / /
6 I2 + B+
7 I2 - B-
8 / /
9 / DC 5 V Sensor
10 I0 + R+
11 / 0V Sensor
12 I0 - R-
13 Internal Shield /
14 / /
15 / /
Case External Shield /