Relay Parameterization; Design Description - ABB REU 523 Technical Reference Manual

1MRS 750942-MUM
4.1.10.
4.2.
4.2.1.
ABB Automation
Combined Overvoltage and Undervoltage Relay
Technical Reference Manual
Table 4.1.9.3-9 Output signals
Status of the protection stages
Starting of stage U>
Tripping of stage U>
Starting of stage U>>
Tripping of stage U>>
Starting of stage U<
Tripping of stage U<
Starting of stage U<<
Tripping of stage U<<
Table 4.1.9.3-10 Outputs
Operation of output contacts
Output PO1
Output PO2
Output SO1
Output SO2
Enabling output contacts PO1,
PO2, SO1 and SO2

Relay parameterization

Local parameterization
The parameters of the relay can be set either locally via the MMI or externally via
serial communication with the Relay Setting Tool. When the parameters are set
locally the setting parameters can be chosen from the hierarchical menu structure.
The desired language for parameter description can be selected. Refer to "Operator's
Manual".
External parameterization
The Relay Setting Tool is used for parameterizing the relay units. The parameters
can be set off-line in a PC and downloaded to the relay over a communication port.
The views for parameterization included in the Relay Setting Tool menu structure
are the same as the views on the technical level of the local MMI.

Design description

Input / output connections
The energizing voltages are connected to terminals X1.1/1-3, X1.1/4-6 and X1.1/7-
9. The nominal voltage (100/ 110/ 115/ 120 V) of the matching transformers has to
be selected with SPA parameter V134 or via the MMI. The relay can also be used in
single-phase applications by setting switch 1 in switchgroup SGF2.
State of stage Recorded
(R) functions (R)
O1 O21
O2 O22
O3 O23
O4 O24
O5 O25
O6 O26
O7 O27
O8 O28
State of output Recorded
(R,W,P) functions (R)
O9 O29
O10 O30
O11 O31
O12 O32
O41 -
REU 523
Value
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
Value
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
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