SMA STP 50-40 - Switching the Dynamic Power Display off; Changing the Password; Generating or Changing a Product Key

8 Operation
SMA Solar Technology AG
Operating manual STP50-4x-BE-en-23 75
8.10 Switching the Dynamic Power Display Off
As standard, the product signals its power dynamically via the pulsing of the green LED. When
doing so, the LED flashes on and off uniformly or is permanently lit at full power. The various
gradations are related here to the set active power limit of the product. If this display is not desired,
switch this function off in accordance with the following procedure. Once this has been done, the
green LED is lit permanently to signalize feed-in operation.
The basic procedure for changing operating parameters is explained in another section (see
Section8.14, page77).
Procedure:
• In the parameter group Device > Operation, select the parameter Dynamic power
display via green LED and set this to Off.
8.11 Changing the Password
The password for the product can be changed for both user groups. Furthermore, the user group
Installer can change the password for the user group User as well as its own password.
PV systems registered in a communication product
With PV systems that are registered in a communication product (e.g. SunnyPortal,
ClusterController), you can also assign a new password for the user group Installer via the
communication product. The password for the user group Installer is also the system
password. If you assign a password for the user group Installer via the user interface of the
inverter that does not correspond to the system password in the communication product, the
inverter can no longer be reached by the communication product.
• Ensure that the password for the user group Installer is the same as the system password
in the communication product.
Procedure:
1. Open the user interface (see Section8.2, page61).
2. Log into the user interface (see Section8.3, page65).
3. Call up the menu Device parameters.
4. Click on [Edit parameters].
5. In the parameter group User Rights > Access Control change the password of the desired
user group.
6. Select [Save all] to save the changes.
8.12 Generating or Changing a Product Key
If you have forgotten the product's password, you can use the product key to create a new one.
The product key is stored only on the device. A lost product key cannot be recovered, it can only
be recreated. Creating a product key is not mandatory, but is recommended by SMA Solar
Technology AG because the product key significantly increases the security of the system.
Generating a product key for the first time
A product key must be generated for each of the groups User and Installer.