Troubleshooting; Forgotten Password - SMA STP 50-40 Operating Manual

SMA Solar Technology AG

11 Troubleshooting

11.1 Forgotten Password

Password assignment for inverters that are registered in a communication
product
The password for the user group Installer is also the system password for the PV system in the
communication product. Changing the password of the user group Installer can lead to the
inverter no longer being able to be reached by the communication product.
• In the communication product, assign the changed password of the user group Installer
as the new system password (see the manual of the communication product).
Password forgotten for products with firmware version ≥ 4.00.00.R
If you have forgotten the password for the inverter, you can unlock the inverter with your product
key. If you have lost your product key, you can reset your password as described in (see
Section 11.2, page 96).
If you have not yet generated the product key (see Section 8.12, page 75), you can unlock the
product with a specific device secret.
Procedure:
1. Open the user interface (see Section 8.2, page 61).
2. Select the group User or Installer.
3. Click on [Forgot your password?].
4. Enter the product key. If you have not yet generated your product key, enter the specific
device secret. Which specific device secret is used and where you can find the specific device
secret is indicated on the user interface.
☑ The page for generating a new password will open.
5. Generate a new password.
6. Click on [Save] to save the changes.
Password forgotten for products with firmware version ≤ 4.00.00.R
If you have forgotten the password for the inverter, you can unlock the inverter with a Personal
Unlocking Key (PUK). For each inverter, there is 1 PUK for each user group (User and Installer).
Tipp: With PV systems that are registered in a communication product, you can also assign a new
password for the user group Installer via the communication product. The password for the user
group Installer is the same as the system password in the communication product.
Procedure:
1. Request PUK (application form available at www.SMA-Solar.com).
2. Open the user interface (see Section 8.2, page 61).
3. Enter the PUK instead of the password into the field Password.
4. Select Login.
5. Call up the menu Device parameters.
Operating manual
11 Troubleshooting
STP50-4x-BE-en-23 95