Protection Signal Routing; Indication And Control Connections - ABB REX 521 Technical Reference Manual, Standard Configurations

1MRS 751802-MUM
10.3.4.
10.3.5.
Protection Relay
Technical Reference Manual, Standard Configurations
pulse period, the close signal is deactivated. Alarms and action signals are available
as three different signals from the auto-recloser. The signals can be found in
Main menu\Configuration\Output SWGRP\ and they are named as 0->1
ACTIVE, 0->1 Alarm1 and 0->1 Alarm2. Please refer to the CD-ROM Technical
Descriptions of Functions (1MRS 750889-MCD) for more information about the
auto-reclosing function.

Protection signal routing

The settings for the protection signal routing can be implemented as described in
the first application example (chapter 9.1.).

Indication and control connections

The connections for indication and control can be implemented as described in first
application example (chapter 9.1.), except the signals for the open and close buttons
that in this example are disconnected to free the digital inputs for other functionality.
Local control can be executed via the HMI according to the instructions in
Operator's Manual (1MRS 751107-MUM).
REX 521
163