KACO Powador 16.0 TR3 - Manual (Page 9)

D e s c r i p t i o n
Page 10 Operating Instructions Powador 16.0 TR3, 18.0 TR3_EN
3.2.3 Electrical functions
3.2.3.1 Fault signal relay
A potential-free relay contact is integrated in the inverter. The contact closes as soon as there is a fault during
operation.
For the connection, see section 7.3.2 on page 25.
DE Country-specifi c function
3.2.3.2 Fault signal relay/Relay 33
A potential-free relay contact is integrated in the inverter. Use this contact for one of the following
functions:
• Fault signal relay (see above)
• Relay 33
Relay 33
The new version of the German Renewable Energies Act (EEG) includes compensation for personal
consumption of self-generated PV energy for plants up to 500 kWp. The energy that is provided by
the PV system can be put to use directly by the appliances that are connected in your home.
In “Relay 33” mode, the potential-free contact takes care of this function.
The contact closes if suffi cient PV energy is made available over a period of 30 minutes. When the
contact closes, a visual or acoustic signal is emitted, e.g. from a signal lamp or siren (optional).
Activation of the function (optional)
The “Relay 33” function is not active in the unit's delivery state. You can obtain the password for the
function from your specialist dealer. The authorised electrician then activates the function in the
confi guration menu (see section 8.3.2 on page 32).
R33 switch (optional)
The potential-free contact switches larger appliances (e.g. air conditioning units) on and off . This
requires an external power supply (max. 30 V DC) and an external load relay.
You obtain both as an R33 switch from your specialist dealer.
DE Country-specifi c function
3.2.3.3 Power limitation (power control)
Since 01/01/2009, the German Renewable Energies Act (EEG) requires power limitation for systems
>100 kW. This limit value can be exceeded in a unit group of several inverters. Therefore, each inverter
must have an option for limiting power, even if this is not needed in a system that is smaller than
100 kW.
In KACO new energy GmbH inverters, this power reduction is achieved using a ripple control receiver.
The power supply company can reduce the power of the system remotely, if necessary, using an addi-
tional device from the Powador proLOG family. The Powador-proLOG activates this function, which is
already integrated in the inverter. After a specifi ed period of time without any signal from the power
supply company, the inverter returns to normal operation. For information about Powador-proLOG,
contact your specialist dealer.
Levels of AC power reduction Inverter action
100% Normal feed-in operation
60% Limitation of power to 60%
30% Limitation of power to 30%
0% Disconnection from the grid