I/O Connection - ABB NE870 User Manual

Section 2 Interface specifications
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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.
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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 –
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