Setting Time-Controlled Inverter Operation In Off-Grid Systems; Activate Wps Function; Switching Wlan On And Off - SMA SUNNY ISLAND 4.4M Operating Manual

8 Operation
Change operating parameters
1. Open the user interface (see Section 8.1, page 104).
2. Log into the user interface (see Section 8.2, page 107).
3. Call up the menu Device parameters.
4. Click on [Edit parameters].
5. Expand the parameter group that contains the parameter which is to be configured.
6. Change the required parameters.
7. Select [Save all] to save the changes.
☑ The inverter parameters are set.
8.7

Setting Time-Controlled Inverter Operation in Off-Grid Systems

Time-controlled inverter operation enables the regular supply of loads (e.g. electrical heating) during defined time
periods (at weekends). In time-controlled inverter operation, the battery inverter only makes the stand-alone grid
available during the set time period. For the remaining time, the battery inverter remains in standby mode.
1. Activate the user interface of the inverter (see Section 8.1, page 104).
2. Log in as Installer (see Section 8.2, page 107).
3. Select Device > Operation > Time control.
4. Set time-controlled inverter operation. First set the parameter Start date for time-controlled inverter operation
to the required start date.
5. Set the parameter Start date for time-controlled inverter operation to the desired start time.
6. Set the parameter Operating time for time-controlled inverter op. to the desired operating time.
7. Select the Repetition cycle for time-controlled inverter operation / Repetition parameter and set it to the
required repetition cycle.
☑ Time-controlled inverter operation is set.
8. To activate time-controlled inverter operation, select the parameter Time-controlled inverter operation and set
it Yes.
☑ Time-controlled inverter operation is active. If the battery inverter has started automatically under time-control and
you stop the battery inverter, time-controlled inverter operation is deactivated automatically.
8.8

Activate WPS Function

The inverter deactivates the WPS function automatically. When this happens, a signal sounds: long signal (one second)
> break (1 second) > very long signal (3 seconds).
Procedure:
• Enable the WPS function on the inverter. To do this, tap twice on the enclosure lid of the Connection Unit.
☑ The blue LED flashes quickly for approx. 2 minutes. The WPS function is active during this time.
8.9

Switching WLAN On and Off

The inverter is equipped with an activated WLAN interface as standard. If you do not want to use WLAN, you can
switch the WLAN function off and switch it on again whenever needed. In doing so, you can switch the WLAN direct
connection and the WLAN connection in the local network on independently of each other.
Switching on the WLAN function only possible via Ethernet connection
If you switch off both the WLAN function for the direct connection and for the connection in the local network,
access to the inverter user interface and therefore reactivation of the WLAN interface is only possible via an
Ethernet connection.
114 SI44M-80H-13-BE-en-15
SMA Solar Technology AG
Operating manual