Starting And Stopping The System; Switching On The System; Starting The System - SMA SUNNY ISLAND 4.4M Operating Manual

9 Starting and Stopping the System

9 Starting and Stopping the System
9.1

Switching on the System

Requirements:
☐ All inverters must be closed (see Section 6.8, page 66).
☐ The fuse switch-disconnector of the battery fuse must be closed (see Section 6.9, page 67).
☐ The battery inverter must not have switched itself off (see Section 13.6.2, page 131).
Procedure:
1. For systems with one Sunny Island, press the "On" button on the
Sunny Island.
2. For systems with up to three Sunny Island inverters, press and hold the "On" button on the master until an acoustic
signal sounds.
3. For multicluster systems, press and hold the "On" button on each master until an acoustic signal sounds.
☑ The inverter LED on each Sunny Island inverter is glowing orange and the Sunny Island inverters are in standby
mode.
9.2

Starting the System

Start inverter via user interface
Starting the inverter via the user interface is an alternative to pressing the start-stop button.
• To start the inverter via the user interface, set Device parameters > Device > Operation > General
operating mode to Start.
Requirements:
☐ All Sunny Island inverters must be switched on.
☐ The circuit breakers for the AC sources in the stand-alone grid must be switched off in the AC distribution board.
☐ The load-break switch of the generator must be open.
Procedure:
1. For systems with one Sunny Island, press the "start-stop" button on
the Sunny Island until an acoustic signal sounds.
Start of a single-cluster system
2.
When starting a single-cluster system, the slaves wait for the start command from the master.
• For systems with up to three Sunny Island inverters, press and hold the "start-stop" button on the master
until an acoustic signal sounds.
118 SI44M-80H-13-BE-en-15
SMA Solar Technology AG
Operating manual