Changing Operating Parameters; Setting Time-Controlled Inverter Operation In Off-Grid Systems - SMA SUNNY ISLAND 4.4M Operating Manual

SMA Solar Technology AG
9.2

Changing Operating Parameters

The operating parameters of the inverter are set to certain values by default. You can change the operating
parameters to optimize the performance of the inverter.
This section describes the basic procedure for changing operating parameters. Always change operating parameters
as described in this section. Function-sensitive parameters are only visible to qualified persons and can only be
changed upon logging in as Installer. These parameters are designated in the user interface with a locked padlock.
Damage to the battery due to incorrect settings
The set battery parameters influence the charging behavior of the inverter. The battery can be damaged by incorrect
settings of the battery type, nominal voltage and capacity parameters.
• Set the correct battery type as well as the correct values for nominal voltage and battery capacity when
configuring.
• Ensure that the values recommended by the manufacturer are set for the battery (refer to the technical data of
the battery in the manufacturer documentation).
No configuration via Sunny Explorer
Sunny Explorer does not support the configuration of inverters with their own user interface. The inverter can be
detected via Sunny Explorer, however it is expressly not recommended to use Sunny Explorer to configure this
inverter. SMA Solar Technology AG does not accept liability for missing or incorrect data and possibly resulting
yield losses.
• Use the user interface for the configuration of the inverter.
Requirement:
☐ The SMA Grid Guard code must be available (see "Application for SMA Grid Guard Code" at www.SMA-
Solar.com) for making changes to utility-grid-related parameters.
Procedure:
1. Activate the user interface (see Section 8.1, page 110).
2. Log into the user interface (see Section 8.2, page 112).
3. Call up the menu Device Parameters.
4. Select [Edit parameters].
5. Log in using the SMA Grid Guard code to change those parameters designated by a lock (only for installers):
• Select the menu User Settings (see Section 8.3, page 114).
• In the subsequent context menu, select [SMA Grid Guard login].
• Enter the SMA Grid Guard code and select [Login].
6. Expand the parameter group that contains the parameter which is to be configured.
7. Change the desired parameters.
8. Select [Save all] to save the changes.
☑ The inverter parameters are set.
9.3

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 Sunny Island only makes the stand-alone grid
available during the set time period; the Sunny Island is in standby mode for the remaining time.
Operating Manual
9 Configuration of the Inverter
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