Supervision Of Analog Inputs - ABB RES670 Technical Manual

1MRK 511 408-UUS A
21.5.5.2
21.5.6
Phasor measurement unit RES670 2.2 ANSI
Technical manual
Card Name of signal
ADM ADM-Error
OEM OEM-Error
LDCM LDCM-Error
TRM TRM-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 584: Self supervision with internal event list
Data
Recording manner
List size
Description Displayed on Reasons for activation
local HMI as
A/D ADM32
Module
Error
status
Optical OEM3nn
Ethernet
Module
Error
status
Line LDCM3nn
Differential
Communic
ation
Module
Error
status
Transform TRM40
er Module
Error
status
Transform TRM41
er Module
Error
status
Value
Continuous, event controlled
40 events, first in-first out
Section 21
Activated if the module has a hardware
error.
Activated if the module has a hardware
error.
n = slot number
Activated if the module has a hardware
error.
n = slot number
Security
M11401-136 v7
IP10272-1 v2
M11963-1 v5
757