Section 2 Interface specifications
1
2
3
4
Figure 5. Power Connections
I/O Connection
The Status output is a potential free, opto-isolated normally closed solid-state relay.
This can be configured to monitor various alarm events within the NE870 unit, see
ABB NEOS User Manual. An external load in series with an external voltage source
is required for proper functionality. For voltage/current ratings, see "Section 2
Interface specifications" section.
1
2
3
4
Figure 6. I/O Connection
3BSE083159
4-position Product marking Direction Description
No. 1
+DC1
No. 2
+DC2
No. 3
-COM
No. 4
-COM
4-position Product marking Direction Description
No. 1
Status +
No. 2
Status –
No. 3
Digital In +
No. 4
Digital In –
Input
Supply voltage input DC1
Input
Supply voltage input DC2
Input
Common
Input
Common
Output
Alarm relay (status) contact
Output
Alarm relay (status) contact
Input
Digital in +
Input
Digital in –
17