SMA POWER PLANT CONTROLLER - Manual (Page 44)

8 Troubleshooting SMA Solar Technology AG
44 PPC-BE-P7-en-13 Operating Manual
The correct total number of
connected inverters is not
shown on the user interface
or the display.
The configuration of the connected devices has been entered incorrectly in the
Power Plant Controller.
Corrective measures:
• Ensure that the inverters are in operation (see inverter installation manual).
• Ensure that the network cables interconnecting the inverters are connected correctly
(see Section 6.5, page 24).
• Ensure that the network terminals of the Sunny Centrals are connected correctly to
the Power Plant Controller.
• Ensure that no network components, network cables or connectors are defective.
• Ensure that the network addresses of the connected devices are entered correctly.
The parameters or settings of
an individual device cannot
be edited.
You do not have the necessary authorization to edit the parameters.
Corrective measures:
• Change the user group (see Section 11.3.1 "Logging Into the User Interface",
page 54).
The Power Plant Controller
cannot be accessed by the
Modbus client.
The required Modbus server is not enabled.
Corrective measures:
• Ensure that the required Modbus server is enabled (see Section 7.7, page 33).
An incorrect IP address for the Power Plant Controller has been set in the Modbus client.
Corrective measures:
• Read off the IP address of the Power Plant Controller (see Section 7.6.1, page 28).
• Ensure that the correct IP address for the Power Plant Controller is set in the Modbus
client (see the manufacturer manual).
The Modbus profile contains
measured values that are not
supported by the
Power Plant Controller.
The Modbus configuration may be incorrect.
Corrective measures:
• Check the Modbus configuration using the assignment tables and adjust if required
(see Section 7.7, page 33).
The Power Plant Controller is
not responding within the
response time specified by
the Modbus client.
The Modbus configuration may be incorrect.
Corrective measures:
• Check the Modbus configuration using the assignment tables and adjust if required
(see Section 7.7, page 33).
The network configuration may be incorrect.
Corrective measures:
• Ensure that the network cables are connected correctly (see Section 6.5, page 24).
• Check whether the network components, network cables or connectors are
defective or damaged. Replace defective or damaged network components,
network cables or connectors.
• Check whether the network settings of the individual network components are
correct. Adapt the network settings if required.
• If the problem persists, contact the network administrator.
Problem Cause and corrective measures