EAAM057608EN
GC250 Technical Manual 49
If the device is configured not to measure the neutral voltage, then page M.03 will not be
displayed.
5.10
The connection with the generator happens by means if terminals
T.30, T.32, T.34, T.36,
using
protection fuses (suggested 1A)
Three-phase connection:
Connect the neutral (if any) (N) to the terminal
T.36
Connect phase L1 (or R) to the terminal
T.34
Connect phase L2 (or S) to the terminal
T.32
Connect phase L3 (or T) to the terminal
T.30
Single-phase connection:
Connect the neutral (if any) (N) to the terminal
T.36
Connect phase L to the terminal
T.34
Parameters P.0101 allows to select the three-phase/single-phase mode.
For CAT.III use, the maximum working voltage is 300Vac (phase-neutral) and 520Vac
(phase to phase). Maximum voltage to ground is 300 Vac.
The controller board uses phase L1 (terminal
T.34
) to measure the frequency of the generator.
5.10.1
Measurement of the generator neutral
The device, in three-phase connection, can function both with the neutral connection and
without it; selection is performed through the P.0128 parameter.
If the system is configured with the neutral connection, the neutral voltage is measured in
relation with GND.
The values of the V1-N, V2-N and V3-N phase voltages and the VN voltage of the neutral in
relation to GND for the mains are displayed on page M.05.
If the device is configured not to measure the neutral voltage, then page M.05 will not be
displayed.
