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OPERATION
EN / Sunmaster XS4300-3200-2000 / October 2011
19
5.3.8 3-Phase block
This function is a security measure, demanded by some
grid operators. If three inverters are connected in a 3-
phase configuration, they must either all provide energy to
the grid or none. If inverter 1 fails to provide energy to the
grid, inverters 2 and 3 halt as well.
Figure 5-8 shows the display sequence when the first
phase fails and starts up again.
5.4 MAINTENANCE
No specific maintenance to the Sunmaster is required.
Examine your electrical installation on a regular base, at
least once a year. Defects such as loose connections,
burnt wiring etc. must be corrected immediately.
If necessary, use a soft clean cloth to clean cabinet of the
Sunmaster. Never use any liquids, acids and/or scourers.
Figure 5-8: 3 Phase Block function
Inverter 1
Inverter 2
Inverter 3
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