Digital Signal Setpoint; Connecting The Signal Source To The Digital Input For The Active Power Limitation - SMA CLUSTER CONTROLLER Installation Manual

6 Connection

6.11.2 Digital Signal Setpoint

6.11.2.1 Connecting the Signal Source to the Digital Input for the Active
Power Limitation
The digital signals for the active power limitation can be sent to up to four terminal blocks at terminal
X4 of the Cluster Controller. A ripple control receiver or a remote terminal unit can be used as a
digital signal source, for example.
Additional required accessories (not included in scope of delivery):
☐ Up to four digital signal sources
☐ Connection cable (for cable requirements, see Section 6.3)
Requirement:
☐ The connection cable must have been prepared for connection to the multipole plug
(see Section 6.5).
Figure 17: Terminal blocks and pin assignment at terminal X4
Terminal block
Digital input 1 (DI1)
Signal 1 of 4 for the active
power limitation
Digital input 2 (DI2)
Signal 2 of 4 for the active
power limitation
46 ClusterController-IA-en-10
Pin Pin assignment Explanation
A1 24 V
A2 IN
A3 GND
A4 24 V
A5 IN
A6 GND
SMA Solar Technology AG
Voltage supply output
Input
Reference potential
Voltage supply output
Input
Reference potential
Installation Manual