Functionality; Virtual Programmable Led Control; Identification; Function Block - ABB RELION REX640 Technical Manual

Section 3
Basic functions
3.4.2
3.5
3.5.1
3.5.2
106

Functionality

The protection relay includes a global conditioning function LEDPTRC that is used to
control the virtual Start and Trip indication LEDs.
LED indication control should never be used for tripping purposes.
There is a separate trip logic function TRPPTRC available in the relay
configuration.
LED indication control is preconfigured in a such way that all the protection function
general start and operate signals are combined with this function (available as output
signals OUT_START and OUT_OPERATE). These signals are internally connected to
Device Status on WHMI Dashboard and the Device Status widget on the LHMI if the
widget has been instantiated in the LHMI engineering phase. LEDPTRC collects and
combines phase information from different protection functions (available as output
signals OUT_ST_A /_B /_C and OUT_OPR_A /_B /_C). There is also
combined earth fault information collected from all the earth-fault functions available
in the relay configuration (available as output signals OUT_ST_NEUT and
OUT_OPR_NEUT).

Virtual programmable LED control

Identification

Function description
Virtual programmable LED control

Function block

GUID-468D4029-65AF-499D-93BC-4CAEA36322D9 V1 EN
Figure 27: Function block
IEC 61850 IEC 60617
identification identification
LED LED
1MRS759142 C
ANSI/IEEE
identification
LED
REX640
Technical Manual