SMA CLUSTER CONTROLLER - Manual (Page 108)

Problem Cause and corrective measure
No inverters or not all inverters report
back with the version number of the
sent update file. Due to missing DC input voltage to the inverters, an up-
date file has been sent and saved in the inverter but has
not yet been run. The DC input voltage can vary depend-
ing on the time of day, the weather or the condition of the
PV modules (e.g. pollution or covered with snow).
Corrective measures:
• To start the update directly, perform a manual update
(see Section 14.2.2, page 80).
After five attempts, the update file could not be sent to the
inverters in the system.
Corrective measures:
• Check the status of the Speedwire connection of the
inverters via the menu Instantaneous values >
System communication. Note that the Speedwire
connection may also be interrupted due to lack of
DC input voltage to the inverters. The DC input
voltage can vary depending on the time of day, the
weather or the condition of the PV modules (e.g.
pollution or covered with snow).
• To start the update directly, perform a manual update
(see Section 14.2.2, page 80).
Energy Meter
Problem Cause and corrective measure
The Energy Meter is not displayed
by the Cluster Controller. The network cable has not been correctly connected to the
Energy Meter.
Corrective measures:
• Make sure that the network cable is correctly connected
to the network terminal of the Energy Meter (see
installation manual of Energy Meter).
The Energy Meter is not located in the Speedwire network.
Corrective measures:
• Depending on the network topology of the system,
connect the Energy Meter either to the router or network
switch of the Speedwire network, or directly to terminal
X9 or X10 of the Cluster Controller.
The Energy Meter is supplying un-
realistic measured values. The Energy Meter has been installed the wrong way round.
Corrective measures:
• Reconnect and recommission the Energy Meter (see
installation manual of the Energy Meter).
18 Troubleshooting SMA Solar Technology AG / SMA America, LLC
User Manual ClusterController-BA-en-14 108