Intec Controls IVA-420I, Руководство пользователя, Страница: 12 / 16

18
511399
2/07
Wiring Details
4-20 mA Output Loop-powered Wiring
4-wire configuration
4-20 mA Output Configuration
The IVA-420I has 8 4-20 mA outputs. It converts a digital signal entering at
J15 into an analog signal through outputs J16 to J23 . The output
signal is linear to the input. The 4 mA output represents the minimum
scale from the input and the 20 mA output represents the maximum
scale from the input.
DDC System
+ + + + + + + + -
DC Power Supply
- +
Power
Supply
24 Vac
V
A B
1 1 1 1 1 1 1 1
- + - + - + - + - +
-
+ - + - +
P.U.
P.D.
RC
R E.O.L.
SHIELD
OUTPUT 1 - 8
- V+
U3
8
U3
7
U3
6
U3
5
U3
4
U3
3
U3
2
U31
S9 S8
S7
S6
S5 S4
S3 S2
J7
J8
J1
5
J23 J22 J21 J20 J19 J18 J17 J16
J12
IVA-420I User Manual