SMA SMC 9000TL Installation - Manual (Page 49)

Installation Manual SMC9-11TLRP-IA-en-51 49
SMA Solar Technology AG 7 Configuration
For operating the PV plant with external decoupling protection, the inverter has an additional country
data set MVtgDirective or Medium-Voltage Directive. This country data set allows you to extend
the operating range of the inverter for voltage and frequency (for information on the operating
parameters and country data sets, see the technical descriptions "Operating Parameters and
"PV Inverters ‒ Overview of Country Data Sets" at www.SMA-Solar.com). This country data set should
only be selected if the PV plant is disconnected via external decoupling.
Requirements:
☐ The inverter must be equipped with a communication interface.
☐ A communication product, data logger or software appropriate for the type of communication
used must be available.
☐ The responsible network operator must approve changes of grid-relevant parameters.
☐ The SMA Grid Guard code for changing the grid-relevant parameters must be available
(to apply for an "SMA Grid Guard" code, see the certificate "Application for SMA Grid Guard
Code" at www.SMA-Solar.com).
1. Open the user interface of the data logger or software.
2. Enter the SMA Grid Guard code.
3. Select the parameter Default and set it to MVtgDirective or select the parameter Set country
standard and set it to Medium-Voltage Directive.
7.3 Setting the Country Data Set for Operation with External
Decoupling Protection
Electric shock due to lack of external decoupling protection
If you set the MVtgDirective or Medium-Voltage Directive country data set, you are only
allowed to operate the inverter with an external three-phase decoupling protection. Without
external three-phase decoupling protection, the inverter will not disconnect from the electricity grid
when the standard requirement is exceeded.
• Install external three-phase decoupling protection.