Supervision Of Analog Inputs; Technical Data; Changelock Function Chnglck; Functionality - ABB RED650 Technical Manual

Section 20
Security
20.5.5.2
20.5.6
20.6
20.6.1
768
Card Name of signal
ADM ADM-Error
LDCM LDCM-Error
TRM TRM-Error

Supervision of analog inputs

The analog signals to the A/D converter is internally distributed into two different
converters, one with low amplification and one with high amplification.
When the signal is within measurable limits on both channels, a direct comparison
of the two A/D converter channels can be performed. If the validation fails, the
CPU will be informed and an alarm will be given for A/D converter failure.

Technical data

Table 573: Self supervision with internal event list
Data
Recording manner
List size

ChangeLock function CHNGLCK

Functionality

Change lock function CHNGLCK is used to block further changes to the IED
configuration and settings once the commissioning is complete. The purpose is to
block inadvertent IED configuration changes beyond a certain point in time.
The change lock function activation is normally connected to a binary input.
Description Displayed on Reasons for activation
local HMI as
A/D ADM32 Activated if the module has a hardware
Module error.
Error
status
Line LDCM3nn Activated if the module has a hardware
Differentia error.
l n = slot number
Communi
cation
Module
Error
status
Transform TRM40
er Module
Error
status
Value
Continuous, event controlled
40 events, first in-first out
Line differential protection RED650 2.2 IEC
1MRK 505 394-UEN A
M11401-136 v7
IP10272-1 v2
M11963-1 v5
GUID-E8A1C33A-DD65-42B5-BA13-CFAE40C2C9AD v2
GUID-00784FC0-B39D-462D-854B-AAF62626DD0A v3
Technical manual