WAGO 750-495/040-00 Series Manual page 142

142 Connect Devices
To avoid erroneous measured values for the unused phase, the unused voltage
input L2 can be connected to the N connection.
Depending on the connection configuration of loads Z1, Z2 and Z3 (see the
following connection schematic), the sizes of the individual phases can be
specified either for all individual loads or, through external calculations, for just
the total load.
- Load configuration: Z1 and Z2:
The measured quantities are valid as for the "4-Wire Wye" measurement
topology.
- Load configuration: Z3 individually:
Summing the 2 individual power/individual energy values yields the total
power/total energy (sum of L1 and L3).
- Load configuration: Z1, Z2 and Z3:
The total power and total energy can be calculated from the individual
power/individual energy values. Because of the concatenated currents of the
individual loads, the individual currents, individual phase angle, individual
powers and individual energies can no longer be distinguished.
Manual
Version 1.2.0
750-495/040-00x 3-Phase Power Measurement Module 690 V
WAGO-I/O-SYSTEM 750 XTR