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11 connecting sensors to the cluster controller, 1 connecting the temperature sensor – SMA CLUSTER CONTROLLER Installation User Manual

Page 44

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Archival periods:
Depending on the available storage capacity of the USB data carrier and the configuration of your
system, the following approximate archival periods for the system data are possible:

Number of connected invert-
ers

Approximate archival period

4 GB storage capacity

8 GB storage capacity

5

10 years

20 years

10

5 years

10 years

25

2 years

4 years

50

1 year

2 years

75

9 months

18 months

Procedure:

1. To protect the USB data carrier against loss, attach the USB data carrier to the eyelets located

on the underside of the USB port, for example with a loop attached to the USB data carrier.

2. Connect the USB data carrier to the desired USB port:

• To export system data, connect the USB data carrier to USB port 1.
• To transfer update files to the Cluster Controller, connect the USB data carrier to USB port

2.

3. If the USB data carrier is permanently inserted into the Cluster Controller, note the terminal

assignment on the supplied supplementary sheet.

4. If the USB data carrier is to be removed from the Cluster Controller, wait until the data carrier

status LED (

) stops flashing.

6.11 Connecting Sensors to the Cluster Controller

6.11.1 Connecting the Temperature Sensor

You can connect one outside temperature sensor and one module temperature sensor to the
Cluster Controller. The measured values from the temperature sensors are shown on the display
and the user interface of the Cluster Controller and transmitted to Sunny Portal. In Sunny Portal, the
measured values from the module temperature sensor are used to calculate the performance ratio.

Connecting the Outside Temperature Sensor

Additionally required material (not included in the scope of delivery):

☐ 1 outside temperature sensor
1 connection cable (see Section 6.3 "Cable Requirements", page 30)

Requirements:

☐ The sensor must be technically suitable for connection to the temperature 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

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