ABB AC 31 - Analog Inputs Diagram; Current 4-20 Ma; Current 0-20 Ma; Pt100;Pt1000

Technical specifications
Page 3-24 ABB Control - AC 31
1SBC 260400 R1001-b 06.99
6.4. Analog inputs diagram:
6.4.1. Current 4-20mA:
32767
16384
- 32767
-20mA
0
4mA
12mA
20mA
3.75m
6.4.2. Current 0-20mA:
32767
16384
- 32767
-20mA
0
10mA 20mA
6.4.3. PT100/PT1000:
4500
-200°c
450°c
-2000 Val = T° x 10
0
+200°c
Voltage input +/- 10 V:
1 LSB = 10 / 2
12
= 2,44 mV with minimum value ( step 8 )
V ( in volt ) = Value x (10 / 32767) with value ( - 32767 ≤ X ≤ + 32767 )
Current input 0-20 mA:
1 LSB = 20.10
-3
/ 2
12
= 4,88 µA with minimum value ( step 8 )
I ( in mA ) = Value x (20.10
-3
/ 32767) with value ( 0 ≤ X ≤ + 32767 )
Current input 4-20 mA:
Resolution is equal to 0-20 mA
I ( in mA ) = Value x (16 / 32767) + 4 with value ( 0 ≤ X ≤ + 32767 )