Ambient Temperature Sensor; Anemometer; Integrated Irradiation Sensor - SMA SUNNY SENSORBOX Installation Manual

SMA Solar Technology AG
LED Status/Color
blinks yellow at intervals of one second
9.2 Ambient Temperature Sensor
In the channel "TmpAmb C", depending on the selected unit, one of the following values is
permanently displayed: -273.15°C, 0K, -459.67°F:
• No sensor is connected.
• Connection fault in the Sunny SensorBox.
I+/V- or I-/V+ were interchanged during connection. Check the connection as described in
section 13.4.5 "Connecting the Ambient Temperature Sensor to the Sunny SensorBox"
(page 64).
Unrealistic values are displayed:
• Check whether the sensor is connected to the correct terminal as described in section
13.4.5 "Connecting the Ambient Temperature Sensor to the Sunny SensorBox" (page 64).
• Check the cable for external damage.
• Check the sensor for external damage or dirt.
• The sensor has been deactivated, and the resistor is no longer plugged into the Sunny
SensorBox.
9.3 Anemometer
Unrealistic values are displayed:
• Check whether the anemometer is connected to the correct terminal as described in section
13.5.5 "Connecting the Anemometer to the Sunny SensorBox" (page 71). Interchanging the
insulated conductors at the "F3: Wind" terminal does not affect the functionality.
• Check the cable for external damage.
• Check the sensor for external damage or dirt.
9.4 Integrated Irradiation Sensor
Unrealistic values are displayed:
• Check whether the integrated irradiation sensor is correctly connected as described in section
9.4.1 "Connection of the Integrated Irradiation Sensor" (page 50).
• Check the cable for external damage.
• Check the sensor for external damage or dirt.
• The sensor has been deactivated, and the resistor is no longer plugged into the Sunny
SensorBox.
Installation Guide
Function
An error has occurred in the firmware. Ask your
installer to perform a firmware update.
Sensorbox-IUS084413
Troubleshooting
49