Ld0.Hrefpdif1 High-Impedance Based Restricted Earth-Fault Protection (1); Ld0.Ledggio1 Indication Led States Color1/Color2 - ABB RET615 Manual

Transformer protection and control
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1MRS756878 H
2.3.1.25
Table 28:

LD0.HREFPDIF1 High-impedance based restricted earth-fault protection (1)

BitA
RegA
2968
185.08
2969
185.09
2970
185.10
2971
185.11
2.3.1.26
RET615
Point List Manual
LD0.HREFPDIF1 High-impedance based restricted earth-fault
protection (1)
IEC 61850 name
SA name
LD0.HREFPDIF1
.Str.general
START
.mcd
.Op.general
OPERATE
.mcd

LD0.LEDGGIO1 Indication LED states Color1/Color2

These LED indication points interpret the case when a signal is wired to both the OK
and ALARM inputs, but inverted to the other. This means that the LED toggles
between red and green colors. The default color for ALARM is red and green for OK.
Colors can, however, be reconfigured with a setting parameter.
Signal
NOT
GUID-2AE4D47A-2BBD-4422-A81C-CF2EB7473379 V1 EN
Figure 2:
Signal wired to both OK and ALARM inputs – inverted to the other
If the OK and ALARM inputs are wired to separate indication signals,
the LED will have three legal states and cannot be expressed with one
bit only. In this case, it is possible to combine this LED bit
interpretation with the corresponding value from the other LED state
interpretation.
Signal 1
OK
Signal 2
ALARM
RESET
GUID-051741E8-4D66-412C-BA0A-0B849B5E58F2 V1 EN
Figure 3:
Separate signals wired to OK and ALARM inputs
Modbus data mappings
Description
Stage start
Stage operate
LEDx
OK
ALARM
RESET
LEDx
Section 2
Values
1=Start
1=Operate
25

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