5 Commissioning
5.1 Switching on and off
All SolarMax inverters work completely automatically. When the PV generator supplies
enough power, the inverter switches on and then starts mains feed operation. At night,
or when the DC end is shut down, the inverter is disconnected from the grid. Operating
the inverter and the ability to communicate via the interfaces are only possible when the
inverter is switched on.
5.1.1 Switching on
1. Switch on the DC disconnector Q1
– The inverter switches on; after a couple of seconds, the graphics display is acti-
vated (assuming there is enough power coming from the PV generator)
2. Switch on the external AC disconnector
– The inverter switches to mains feed operation after roughly 30 seconds
5.1.2 Switching off
DANGER
The DC-end MC connectors may only be disconnected from the inverter if the DC
disconnector (Q1) is open. If the disconnector is not open, disconnecting the DC feed
lines during operation can result in dangerous arcs.
1. Switch off external AC disconnector (optional)
– The inverter is disconnected from the grid
2. Switch off the DC disconnector Q1
– The inverter shuts off after a few seconds
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