Section 7 1MAC309294-MB F
Measurement functions
392 RER620
Technical Manual
The limit supervision indicates, if the measured signal exceeds or goes below the set limits.
Depending on the measured signal type, up to two high limits and up to two low limits can
be set for the limit supervision.
The deadband supervision reports a new measurement value if the input signal has gone
out of the deadband state. The deadband supervision can be used in value reporting
between the measurement point and operation control. When the deadband supervision is
properly configured, it helps in keeping the communication load in minimum and yet
measurement values are reported frequently enough.
7.1.4 Three-phase current IA, IB, IC
7.1.4.1 Identification
7.1.4.2 Function block
Figure 210: Function block
7.1.4.3 Signals
Table 341: IA,IB,IC Input signals
Table 342: IA,IB,IC Output signals
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Three-phase current CMMXU 3I IA, IB, IC
Name Type Default Description
I_A SIGNAL 0 Phase A current
I_B SIGNAL 0 Phase B current
I_C SIGNAL 0 Phase C current
BLOCK BOOLEAN 0=False Block signal for all binary outputs
Name Type Description
HIGH_ALARM BOOLEAN High alarm
HIGH_WARN BOOLEAN High warning
LOW_WARN BOOLEAN Low warning
LOW_ALARM BOOLEAN Low alarm
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