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

6.4. Analog inputs diagram:

Page 3-24
Technical specifications

6.4.1. Current 4-20mA:

32767
16384
-20mA
0
- 32767

6.4.2. Current 0-20mA:

32767
16384
-20mA
0
- 32767

6.4.3. PT100/PT1000:

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