SMA 20000TL - Manual (Page 37)

8.3 Changing Operating Parameters
This section describes the basic procedure for changing operating parameters. Always change
operating parameters as described in this section. Some parameters that have sensitive functions
can only be viewed and changed by qualified persons (for further information on changing
parameters, refer to the manual of the communication product).
The operating parameters of the inverter are set to certain values by default. To optimize inverter
operation, you can change the operating parameters using a communication product.
Requirements:
☐ Depending on the type of communication, a computer with Ethernet interface must be
available.
☐ A communication product corresponding to the type of communication used must be
available.
☐ The inverter must be registered in the communication product.
☐ The changes to the grid-relevant parameters must be approved by the responsible grid
operator.
☐ When changing grid-relevant parameters, the SMA Grid Guard code must be available (see
"Application for SMA Grid Guard Code" at www.SMA-Solar.com).
Procedure:
1. Call up the user interface of the communication product or software and log in as Installer or
User.
2. If required, enter the SMA Grid Guard code.
3. Select and set the required parameter.
4. Save settings.
8.4 Setting the Active Power Limitation in case of PV
System Control Failure
You will need to set the active power limitation in case of PV system control failure if the active
power limitation of the inverter is controlled by a communication product. By setting the active
power limitation in case of PV system control failure, you ensure that the inverter will still feed the
maximum permissible PV power into the utility grid, even if communication between inverter and
communication product has failed. The default setting of the inverter is 100%.
The basic procedure for changing operating parameters is explained in another section (see
Section 8.3 "Changing Operating Parameters", page 37).
Requirements:
☐ The parameter Operating mode Active power must be set to the value Act. power lim.
via PV system ctrl.
☐ The firmware version of the inverter must be at least 2.81.07.R.
8 Configuration SMA Solar Technology AG
Operating Manual 37 STP20-25TL-BE-en-12