SMA CLCON-10, Руководство по установке

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In the event that the Cluster Controller evaluates a setpoint as invalid or does not receive a setpoint
within a configurable interval, you can make additional settings for the fallback.
Configure the grid management services via the Cluster Controller user interface (see the
Cluster Controller user manual).
Open-loop control
For Cluster Controller systems without self-consumption and with direct limitation of active power
feed-in, the operating mode
Open-loop control is used. In this operating mode, the
Cluster Controller can receive the grid management service setpoints from three different types of
signal source. The different types of signal source can be combined so that, for example, the
setpoints for the active power limitation can be received as digital signals and the reactive power
setpoints can be received as analog signals:
Type of setpoint signal Explanation
Digital signals The setpoints are transmitted to the Cluster Controller as
digital signals in the form of binary values. Up to four re-
lay contacts can be used for the active power limitation
and the reactive power setpoint.
Analog signals The setpoints are transmitted to the Cluster Controller as
analog current signals. Current signals from 0 mA to
20 mA can be transmitted for the active power limitation
and the reactive power setpoint.
Setpoint signal via Modbus client The setpoints are transmitted via a Modbus client to the
network port
X13 or X14 on the Cluster Controller (for in-
formation on Modbus configuration, see the Cluster Con-
troller user manual).
Closed-loop control
For Cluster Controller systems with self-consumption, the operating mode Closed-loop control is
used. In this operating mode, you can limit the active power fed in by the system at the grid-
connection point to a fixed percentage value. In addition to the total system power, the
Cluster Controller needs the measured actual value of the active power fed in at the grid-connection
point.
6.12.2 Digital Setpoint Signal
6.12.2.1 Connection Options
You have two options for each pin group on terminal X4 :
• Connection of a signal source with potential-free relay contact
or
• Connection of a 24 V signal source with digital output signals
6 Connection and Commissioning SMA Solar Technology AG
Installation Manual ClusterController-IA-en-15 48