SMA CLUSTER CONTROLLER Installation - Manual (Page 54)

Connection of a 24 V Signal Source with Digital Output Signals
Figure 19: Connection of a 24 V signal source with digital output signals (example)
6.12.2.2 Connecting a Signal Source to a Digital Input for Active Power
Limitation
Digital signals for active power limitation can be transmitted to up to four pin groups at terminal X4
on the Cluster Controller. A ripple control receiver or a remote terminal unit can be used as a digital
signal source, for example.
Additionally required material (not included in the scope of delivery):
☐ Up to four digital signal sources
☐ Connection cable (see Section 6.3 "Cable Requirements", page 30)
Requirements:
☐ The signal source must be technically suitable for connection to the digital inputs (see
Section 9, page 84).
☐ The connection cable must be prepared for connection to the multipole plug (see Section 6.5,
page 33).
6 Connection and Commissioning SMA Solar Technology AG / SMA America, LLC
Installation Manual ClusterController-IA-en-14 54