July 02
Mounting and Electrical Installation
TNC 370 D
3–13
3.7.3 Measuring System Inputs
HEIDENHAIN TNC contouring controls are designed for use with incremental linear and angular
encoders as measuring systems.
However, HEIDENHAIN recommends using encoders with distance-coded reference marks because
they significantly reduce the traverse distance required to establish the absolute position.
Maximum current load per encoder input:
200 mA
Use only original HEIDENHAIN encoder cables, connectors and couplings. For maximum cable
lengths see “Cable Overview.”
Encoder for Position with 1 V
SS
Maximum input frequency: 350 kHz (via MP 115.1 switchable to 50 kHz)
X1, X2, X3, X4 and X6 (Spindle) Encoder (1 V
PP
) (via MP 115.0 switchable to 11µA)
Logic unit
Encoder cable
D-sub
terminal
(male) 15-pin
Assignment D-sub
connector
(female) 15-pin
1
+ 5 V (U
P
) 1
Brown/Green
2
0 V (U
N
) 2
White/Green
3 A+
3 Brown
4 A–
4 Green
5
0 V
5
6 B+
6 Gray
7 B–
7 Pink
8
0 V
8
9
+ 5 V
9
Blue
10 R+
10 Red
11 0
V
11 White
12 R–
12 Black
13
0 V
13
14
Do not use
14
Violet
15
Do not use
15
Housing
External shield
Housing
External shield
For the spindle position, HEIDENHAIN recommends the ROD 486 with 1024 or 2048 lines.
The
1 V
PP
signals are interpolated by a factor of 1024.
Содержание TNC 370 D
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