SMA HM-20 - Messages in the System Logbook

18 Troubleshooting
SMA Solar Technology AG
Operating manual 131HM-20-BE-en-19
18.7 Messages in the system logbook
Messages regarding active power limitation
Problem Cause and corrective measures
Message in the system logbook:
Supplied power has ex-
ceeded the permitted value
several times.
Although the function Limitation of active power feed-in is activated, more
than the maximum permitted active power has been fed into the utility grid.
Corrective measures:
• Ensure that the feed-in meter is configured correctly (see Section11.3.12,
page61).
• Ensure that the parameter Operating mode active power setting must
be set to Active power limitation P via system control or to External
specification for the PV and hybrid inverters.
Message in the system logbook:
Act. power limitation deacti-
vated due to incorr. configu-
ration.
The function Limiting of the active power feed-in was deactivated by
SunnyHomeManager because the system configuration in SunnyPortal was
faulty.
Corrective measures:
• This message can appear while making changes to the
SunnyHomeManager system, e.g. upon device replacement. In this case,
no action is needed.
• If the message appears over an extended time period, contact the Service
(see Section23, page145).
Message in the system logbook:
Event:
act. power limitation acti-
vated w/o regard to own
consumption
The function Limiting of the active power feed-in is faulty because there is no
data from the feed-in meter. Risk of yield loss because the self-consumption of the
household cannot be taken into account.
Corrective measures:
• Ensure that the feed-in meter is working and correctly connected.
Message in the system logbook:
Inverter does not respond to
active power limitation
At least one inverter is not responding to limit the active power feed-in.
In this case, the SunnyHomeManager initiates stronger active power limitation
in the remaining inverters. Consequently, the maximum permitted active power
feed-in is complied with.
If the message Fed-in power has repeatedly exceeded the permitted
value appears on the same day, an error is present.
Corrective measures:
• Ensure that the parameter Operating mode active power setting must
be set to Active power limitation P via system control or to External
specification for the PV and hybrid inverters.
Messages regarding communication via data exchange protocol
Devices having a specific interface for data exchange, e.g. SEMP or EEBus, can communicate directly with the
SunnyHomeManager via a so-called EM (Energy Management) gateway.
The following placeholders are used in the table below:
• XXXX - is a placeholder for the used data exchange protocol SEMP or EEBus