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6 Connection and Commissioning
Figure 20: Pin assignment for pin groups on terminal X4
Pin group
Digital input 1
Signal 1 of 4 for active power
limitation
Digital input 2
Signal 2 of 4 for active power
limitation
Digital input 3
Signal 3 of 4 for active power
limitation
Digital input 4
Signal 4 of 4 for active power
limitation
Danger to life due to electric shock caused by incorrect connection of the ripple control
receiver
Incorrect connection of the ripple control receiver can result in grid voltage on the
Cluster Controller enclosure.
• Do not connect the insulated conductors of the connection cable to the line conductors of the
ripple control receiver.
• When connecting, ensure that no bridge is being used in the ripple control receiver.
50
ClusterController-IA-en-15
Pin
Pin assignment
A1
24 V
A2
IN
A3
GND
A4
24 V
A5
IN
A6
GND
B1
24 V
B2
IN
B3
GND
B4
24 V
B5
IN
B6
GND
SMA Solar Technology AG
Explanation
Voltage supply output
Input
Reference potential
Voltage supply output
Input
Reference potential
Voltage supply output
Input
Reference potential
Voltage supply output
Input
Reference potential
Installation Manual
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