HEIDENHAIN iTNC 530 Service Manual page 477

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