General Operation; Turning The Power On; Description Of The Power Modes - Firefly cygnus hpg User Manual

3 GENERAL OPERATION
3.1 Turning The Power On
Once all connections are complete, the AC Output of the unit is ready to be
switched on.

3.1.1 Description Of The Power Modes

Cygnus HPG has three different modes of operation. The modes control how the
inverters are configured and how the power is routed through the unit. The
mode is selected by depressing a single button behind the top control panel door.
Mode 1: Three Phase
A three phase input is accepted. Three
phase power is backed up by the unit's
battery bank and available at the
output. L1 of the three phase output
is also available at the single phase
output. The three phase breakers (see
4, 6 & 8 "Fig. 7 - Inputs, Outputs and
Circuit Breakers" on page
protect the circuit.
Mode 2: Single Phase
A single phase input is accepted. The
unit provides a single phase output as
well as L1 of the three phase output.
The single phase breakers (see items
3, 5 & 7 "Fig. 7 - Inputs, Outputs and
Circuit Breakers" on page
protect the circuit.
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