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

10 Starting and Stopping the System

10 Starting and Stopping the System

10.1 Switching on the Sunny Island
Requirements:
☐ All Sunny Island inverters must be closed (see Section 14.11, page 142).
☐ The fuse switch-disconnector of the battery fuse must be closed (see Section 6.9, page 73).
☐ The Sunny Island must not have switched itself off (see Section 14.7 "Charging the Battery After Automatic
Shutdown in Off-Grid Systems (Emergency Charge Mode)", page 137).
Procedure:
• For systems with one Sunny Island, press the "On" button on
the Sunny Island.
• For systems with up to three Sunny Island inverters, press and hold the "On" button on the master until an acoustic
signal sounds.
• 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.
10.2

Starting the System

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 PV array must be open.
Procedure:
• For systems with one Sunny Island, press the "start-stop" button
on the Sunny Island until an acoustic signal sounds.
– For systems with up to three Sunny Island inverters, press and hold the "start-stop" button on the master.
– For multicluster systems, press and hold the "start-stop" button on the master of the main cluster until an
acoustic signal sounds.
☑ The inverter LED on each Sunny Island is glowing green. The Sunny Island inverters are in operation.
124 SI44M-80H-12-BE-en-10
SMA Solar Technology AG
Operating Manual