Phase current demand values in volts are for connecting to Load profile recorder
(LDPRLRC) through outputs I_DMD_A, I_DMD_B and I_DMD_C.
8.1.5.4 Analog channel configuration
VMMXU has one analog group input which must be properly configured.
Table 1369: Analog inputs
Input Description
U3P Three-phase voltages
See the preprocessing function blocks in this document for the possible
signal sources.
There are a few special conditions which must be noted with the configuration.
Table 1370: 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 all three voltage
channels are connected if
Num of start pha-
ses
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 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.
8.1.5.5 Signals
VMMXU Input signals
Table 1371: VMMXU Input signals
Name Type Default Description
U3P SIGNAL - Three-phase voltages
BLOCK BOOLEAN 0=False Block signal for all bi-
nary outputs
Measurement functions 1MRS759142 F
1448 REX640
Technical Manual
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