Val Controls I 24-AF Series - Passive Analogue Output - AO1, AO2 and Digital Inputs - DI5, DI6

DHW-UM-004
Val Controls A/S • Sallingsundvej 5 • DK-6715 Esbjerg N • Tel. +45 7547 0600
vc@valcontrols.com • www.valcontrols.com
Revision: 4
17/20
5.3 Passive analogue output – AO1, AO2 and Digital inputs – DI5, DI6
The two analogue outputs can be used to connect 4-20mA.
Active 4-20mA input
-
Passive AO
+
A
DI
+
-
5.3.1 Terminals
AO1
21 (+)
22 (-)
AO2
23 (+)
24 (-)
DI5
51 (+)
52 (-)
DI6
25 (-)
26 (+)
5.3.2 Electrical specifications
AO1 – AO2 – Passive analogue output
Impedance
< 470 Ohm at 20mA and 9.4VDC
Linearity
< 0.1%
Temperature coefficient
0.015% / 1°C (Warm-up: 10 min)
DI – Switch
Type
Switch
Cable length
20 meters
Maximum cable resistance
100 Ohm
DI – NAMUR
Type
NAMUR
Sensor supply voltage
8 V
Cable length
1000 meters
Max load
600 Ohm
Rin
1040 Ohm