Table 1378: Special conditions
Condition Description
U3P connected to real measurements The function requires that at least one volt-
age channel is connected if
Num of start pha-
ses
is set to "1 out of 3".
The function requires that at least two volt-
age channels are connected if
Num of start
phases
is set to "2 out of 3".
The function requires that at least three volt-
age channels are connected if
Num of start
phases
is set to "3 out of 3".
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 content 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.
8.1.6.5 Signals
VPHMMXU Input signals
Table 1379: VPHMMXU Input signals
Name Type Default Description
U3P SIGNAL - Three-phase voltages
BLOCK BOOLEAN 0=False Block signal for all bi-
nary outputs
VPHMMXU Output signals
Table 1380: VPHMMXU Output signals
Name Type Description
HIGH_ALARM BOOLEAN High alarm
HIGH_WARN BOOLEAN High warning
LOW_WARN BOOLEAN Low warning
LOW_ALARM BOOLEAN Low alarm
U_INST_A FLOAT32 Phase A voltage instantane-
ous value amplitude in kV
Table continues on the next page
Measurement functions 1MRS759142 F
1454 REX640
Technical Manual
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