SMA CLUSTER CONTROLLER Installation - Manual (Page 44)

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 44