ABB Industrial IT enabled REX 521 Technical Reference Manual, General page 52

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Technical Reference Manual, General
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Alarm LEDs ............................................................................................... 34
Activating ............................................................................................. 34
Clearing a certain LED......................................................................... 35
Reading actual state.............................................................................. 35
Testing.................................................................................................. 35
Alarms
Acknowledging .................................................................................... 34
Clearing, VHH Acknowledging
Enabling ............................................................................................... 34
Analogue channels ..................................................................................... 15
Auxiliary power supplies ........................................................................... 37
Auxiliary voltage.................................................................................. 14, 37
Auxiliary voltage indication....................................................................... 14
Auxiliary voltage supply ............................................................................ 14
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Communication .......................................................................................... 39
Correction parameters and factors.............................................................. 17
Current sensor, VHH Rogowski coil
Current transformer values......................................................................... 16
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Digital inputs ........................................................................................ 18, 37
Filtering ................................................................................................ 18
Inversion............................................................................................... 19
Technical data ...................................................................................... 37
Testing.................................................................................................. 21
Voltage range ....................................................................................... 14
Display language ........................................................................................ 48
Display panel.............................................................................................. 33
(
Electromagnetic compatibility ................................................................... 37
Electromagnetic compatibility tests ........................................................... 38
Energizing inputs ....................................................................................... 37
Environmental conditions .................................................................... 37, 38
)
Fault indication........................................................................................... 25
Fault indications ......................................................................................... 25
Actions ................................................................................................. 25
Codes.................................................................................................... 25
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Graphical I/O Setting Tool......................................................................... 12
1MRS 751108-MUM