SMA CLUSTER CONTROLLER Installation - Manual (Page 49)

6.11.3 Connecting Additional Sensors
Depending on whether you are using an irradiation sensor (see Section 6.11.2, page 47), you can
connect a maximum of three sensors to the analog current inputs and one sensor to the analog
voltage input on terminal X8 on the Cluster Controller.
Display of measured values from pin group Analog voltage input 4
If no sensor is connected to the pin group Analog voltage input 4, a measured value for this
pin group of up to 2.2 V will nevertheless be shown on the display and the user interface of
the Cluster Controller.
• In order for a measured value of 0 V to be displayed for the pin group Analog voltage
input 4 when it is not connected, place a jumper wire between pins B5 and B7 in
terminal X8.
Connecting a Sensor to an Analog Current Input
Additionally required material (not included in the scope of delivery):
☐ Up to three sensors
☐ Up to three connection cables (see Section 6.3 "Cable Requirements", page 30)
Requirements:
☐ The sensor must be technically suitable for connection to the analog 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 49 ClusterController-IA-en-14