SMA CLUSTER CONTROLLER Installation - Manual (Page 29)

Position Quantity Designation Explanation
N 2 X11, X12 Reserved for future applications
O 2 X9, X10 Network ports for connecting the inverters (Speed-
wire)
6.2 Functions of the Terminals and Pin Groups
The digital and analog terminals of the Cluster Controller are divided into pin groups. Each pin
group forms one of the digital or analog inputs or outputs. On the enclosure, the upper row of
contact pins is marked with A and the lower row is marked with B. The contact pins are counted
from left to right.
The division of terminals into pin groups and the functions of the pin groups are described in the
following table.
Terminal Pin group Pin Function
X1 – 1 to 3 Voltage supply
X2 Digital output 1
Relay A A1 to A3 Fault indicator contact for the status Er-
ror
Digital output 2
Relay B A4 to A6 Fault indicator contact for the status
Warning or Error
Digital output 3
Relay C B1 to B3 Response contact for the current active
power limitation in grid management ser-
vices
X3 – – Reserved for future applications
X4 Digital input 1 A1 to A3 Signal 1 of 4 for the active power limita-
tion in grid management services
Digital input 2 A4 to A6 Signal 2 of 4 for the active power limita-
tion in grid management services
Digital input 3 B1 to B3 Signal 3 of 4 for the active power limita-
tion in grid management services
Digital input 4 B4 to B6 Signal 4 of 4 for the active power limita-
tion in grid management services
X5 Digital input 5 A1 to A3 Signal 1 of 4 for the reactive power set-
point in grid management services
Digital input 6 A4 to A6 Signal 2 of 4 for the reactive power set-
point in grid management services
Digital input 7 B1 to B3 Signal 3 of 4 for the reactive power set-
point in grid management services
Digital input 8 B4 to B6 Signal 4 of 4 for the reactive power set-
point in grid management services
6 Connection and Commissioning SMA Solar Technology AG / SMA America, LLC
Installation Manual 29 ClusterController-IA-en-14