Analog Channel Configuration - ABB RELION REX640 Technical Manual

Section 8
Measurement functions
8.1.4.4
8.1.4.5
1298

Analog channel configuration

CMMXU has one analog group input which must be properly configured.
Table 1214: Analog inputs
Input
I3P
See the preprocessing function blocks in this document for the
possible signal sources.
Improper analog channel configuration causes a validation error if the analog
channels are not completely configured or they do not match with certain settings. For
troubleshooting, check the contents of this chapter and also the preprocessing blocks
in this document. The configuration can be written to the protection relay once the
mismatch is corrected.
Signals
Table 1215: CMMXU Input signals
Name Type
I3P SIGNAL
BLOCK BOOLEAN
Table 1216: CMMXU Output signals
Name Type
HIGH_ALARM BOOLEAN
HIGH_WARN BOOLEAN
LOW_WARN BOOLEAN
LOW_ALARM BOOLEAN
I_INST_A FLOAT32
I_INST_B FLOAT32
I_INST_C FLOAT32
I_DMD_A FLOAT32
I_DMD_B FLOAT32
I_DMD_C FLOAT32
Description
Three-phase currents
Default Description
- Three-phase currents
0=False Block signal for all binary outputs
Description
High alarm
High warning
Low warning
Low alarm
Phase A current instantaneous value amplitude in
amperes
Phase B current instantaneous value amplitude in
amperes
Phase C current instantaneous value amplitude in
amperes
Demand value of IL1 current
Demand value of IL2 current
Demand value of IL3 current
1MRS759142 C
REX640
Technical Manual