ABB REX 521, Technical Reference Manual, General

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1MRS 751108-MUM Protection Relay
Technical Reference Manual, General
REX 521
9. Index
A
Analogue channels ..................................................................................... 12
Auxiliary power .................................................................................... 12, 30
Auxiliary voltage ............................................................................ 11, 12, 30
C
Communication .......................................................................................... 33
CPU module ............................................................................................... 47
Current transformer .................................................................................... 13
Customer feedback ..................................................................................... 46
D
Digital inputs
Filtering ............................................................................................... 15
Inversion .............................................................................................. 16
Technical data ..................................................................................... 31
Testing ................................................................................................. 18
Voltage range ...................................................................................... 11
Display language ........................................................................................ 41
E
Electromagnetic compatibility ................................................................... 32
Energizing inputs ....................................................................................... 30
Environmental conditions .......................................................................... 31
F
Fault indication ........................................................................................... 22
H
Hardware versions ........................................................................................ 7
I
IRF output .................................................................................................. 22
M
Measuring devices ...................................................................................... 13
N
Non-volatile memory ................................................................................. 10
O
Order number ............................................................................................. 12
Outputs ....................................................................................................... 16
Overtemperature indication ........................................................................ 12
P
Parameterization ........................................................................................... 9
Power output (PO) ...................................................................................... 31