HEIDENHAIN ITNC 530 - Page 477

July 2010 27 – 477
X48:
Analog input (PLC)
on the
MC 42x (B/C)
D-sub connector, 25-pin
Caution
Remember to connect the analog inputs with the correct polarity!
Female Pin layout
1I
1
+ Constant current for Pt 100
2I
1
– Constant current for Pt 100
3U
1
+ Measuring input for Pt 100
4U
1
– Measuring input for Pt 100
5I
2
+ Constant current for Pt 100
6I
2
– Constant current for Pt 100
7U
2
+ Measuring input for Pt 100
8U
2
– Measuring input for Pt 100
9I
3
+ Constant current for Pt 100
10 I
3
– Constant current for Pt 100
11 U
3
+ Measuring input for Pt 100
12 U
3
– Measuring input for Pt 100
13 Do not assign
14 Analog input 1: –10 V to +10 V
15 Analog input 1: 0 V (reference potential)
16 Analog input 2: –10 V to +10 V
17 Analog input 2: 0 V (reference potential)
18 Analog input 3: –10 V to +10 V
19 Analog input 3: 0 V (reference potential)
20 to 25 Do not assign
Housing External shield
Note
The interface complies with the requirements of EN 61800-5-1 for "protective extra-low
voltage" (PELV).