SMA POWER PLANT CONTROLLER - Manual (Page 27)

SMA Solar Technology AG 7 Operation
Operating Manual PPC-BE-P7-en-13 27
7 Operation
7.1 Safety during Operation
7.2 Adjusting Network Settings on the Computer
In order to access the Power Plant Controller user interface, the network settings of the computer must tally with those of
the Power Plant Controller. If the network address of the computer is not located in the same address range as the network
address of the Power Plant Controller, you will first need to adjust the network settings of the computer.
Procedure:
1. Write down the current IP address of the computer.
2. Adjust the IP address of the computer to the address range of the Power Plant Controller.
7.3 Installing the Droid Sans Font on the Computer
You can access the user interface via the display of the Power Plant Controller or with a computer via the system network.
If you wish to access the user interface via the system network, you will need to have the license-free font Droid Sans
installed on the computer to ensure error-free display.
Procedure:
• In Windows XP, check under Windows Start > Control Panel > Fonts whether the font Droid Sans is already
installed. If this font is installed, no further steps are necessary. If the font Droid Sans is not yet installed, download it
from the Internet and install.
or
• In Windows 7 check under Control Panel > Appearance and Personalization > Fonts whether the font Droid
Sans is already installed. If this font is installed, no further steps are necessary. If the font Droid Sans is not yet
installed, download it from the Internet and install.
7.4 Changing the Password
After initial login on the user interface of the Power Plant Controller, you should change the password of the
Power Plant Controller to protect your system. As long as the password is still rated insecure by the system, the request
Please change your password! will continue to be displayed in the bottom line of the user interface.
If you are logged in as user, you can change the user password. If you are logged in as installer, you can change the
user password and the installer password. Be sure to create a password that conforms to the guidelines for secure
passwords (see Section 13.5, page 59).
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Operation failure of the PV system due to incorrectly set parameters
If the parameter settings for grid management services are incorrect, the PV system may not be able to meet the
requirements of grid management services. This may lead to yield losses and disconnection of the inverters by the grid
operator.
• When setting the modes of grid management services, ensure that the control procedures agreed with the grid
operator are parameterized.
• If the PV system is operated with a Power Plant Controller, ensure that the procedure WCtlCom for active power
limitation and the procedure VArCtlCom for reactive power control are selected in the Sunny Central.