1MRS 751107-MUM
Protection Relay
Operator’s Manual
REX 521
29
5. Index
A
About this manual .......................................................................................5
Alarm LEDs ..........................................................................................9, 26
1-8 .......................................................................................................26
Modes .................................................................................................26
B
Bit masks ..................................................................................................21
Altering contents ................................................................................21
Breaker .....................................................................................................19
Buttons ......................................................................................................11
D
Digital inputs
Testing ................................................................................................27
Display
Adjusting Contrast ..............................................................................13
Backlight .............................................................................................13
Contrast ...............................................................................................13
Display test .........................................................................................14
Language ............................................................................................12
E
Event view ................................................................................................17
H
H07 configuration
Measurement view ..............................................................................17
HMI features ...............................................................................................9
I
Indication messages
Condition monitoring .........................................................................24
Green LED ..........................................................................................25
Help messages ....................................................................................22
Internal fault .......................................................................................22
Protection indication ...........................................................................22
Self-supervision ..................................................................................23
Start, Block .........................................................................................22
Trip, CBFP .........................................................................................22
Introduction ................................................................................................8
IRF relay
Testing ................................................................................................27
J
Jump .........................................................................................................17