FMMU has one analog group input which must be properly configured.
| Input | Description |
|---|---|
| U3P | Three-phase voltages |
Note: 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.
| Condition | Description |
|---|---|
| U3P connected to real measurements |
The function requires that at least one phase or phase-to-phase voltage channel is connected i.e. UL1, UL1; UL2, UL1; UL2; UL3 for UTVTR function block |