19
5 Connecting to power supply
VEGAMET 862 • 4 … 20 mA/HART
58867-EN-200401
Detail, digital inputs VEGAMET 862
21 22 23 24
+- +-
25 26 27 28 29 30 31 32
1 2
+- +-
3 4
+- +-
5 6
+- +-
7 8
Fig. 9: Connection of the digital inputs
1 Digital input 1 (active)
2 Digital input 1 (passive)
3 Digital input 2 (active)
4 Digital input 2 (passive)
5 Digital input 3 (active)
6 Digital input 3 (passive)
7 Digital input 4 (active)
8 Digital input 4 (passive)
Connection assignment digital inputs
21 22 23
+
-
1
3
21 22 23
+
-
2
4
3
Fig. 10: Connection assignment of the digital inputs (active/passive)
1 Activeinputforoatingswitchingcontact
2 Passive input for switching contact and external voltage supply
3 Switching contact
4 External voltage source
5.6 Switch-on phase
Afterswitchingon,thedevicerstcarriesoutashortself-check.
•
Internal check of the electronics
•
Output signals are set to failure, background lighting of the display
lights red
The current measured values are then displayed and transmitted to
the outputs. The background lighting of the display changes to white.