1MRS751802-MUM
REX 521
127
Protection Relay
Technical Reference Manual, Standard Configurations
7.6. Standard functions
7.6.1. Switchgroups (SWGRP)
The switchgroups are used for changing the functionality of the standard
configuration via the HMI or using the Relay Setting Tool.
7.6.2. Selectors
The selectors are used for routing signals and connecting inputs. Every digital input
can be connected to an input signal (for example Blocking 1, Master trip) via a
selector. Likewise, an output signal can be connected to an output relay (Trip1,
Alarm 1) via a selector.
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