REJ 523
2
Technical Reference Manual
Contents
1 Introduction .................................................................................................4
1.1
About this manual ..............................................................................4
1.2
1.3
Features.............................................................................................4
1.4
Guarantee..........................................................................................5
2 Safety information .......................................................................................6
3 Instructions .................................................................................................7
3.1
Application .........................................................................................7
3.2
Requirements ....................................................................................7
3.3
Configuration .....................................................................................8
4.1
4.1.1
Product functions ......................................................................9
4.1.1.1
4.1.1.2
Overcurrent....................................................................10
4.1.1.3
Inputs.............................................................................10
4.1.1.4
Outputs ..........................................................................10
4.1.1.5
4.1.1.6
4.1.1.7
MMI module...................................................................11
4.1.1.8
Self-supervision .............................................................11
4.1.2
Configuration ..........................................................................12
4.1.3
Protection ...............................................................................13
4.1.3.1
Overcurrent unit .............................................................13
4.1.3.2
4.1.3.3
Settings..........................................................................23
4.1.3.4
4.1.4
Monitoring ...............................................................................31
4.1.5
4.1.6
I/O test ....................................................................................32
4.1.7
4.1.7.1
Function.........................................................................32
ABB Substation Automation
Products and Systems
MRS750940-MUM