SMA Sensorbox - Manual (Page 63)

SMA Solar Technology AG Maintenance and Care
Installation Guide Sensorbox-IEN100914 63
9.3 Connecting the Integrated Solar Radiation Sensor
The integrated solar radiation sensor in the lid of the Sunny SensorBox is already connected upon
delivery. You can reconnect the integrated solar radiation sensor if you previously disabled it.
To connect the sensor, proceed as follows:
1. Remove the plug-in power supply unit of the RS485
Power Injector from the power outlet.
2. Open the Sunny SensorBox (see page 61).
3. Connect the sensor on the "F5: IntSol" terminal of the
Sunny SensorBox.
KTY yellow cable
KTY yellow cable
PV- blue cable
PV+ red cable
4. Close the Sunny SensorBox (see page 61).
☑ The integrated solar radiation sensor is now
connected to the Sunny SensorBox.
9.4 Replacing the Gaskets of the Sunny SensorBox
The enclosure sealing and the gaskets of the cable glands in the Sunny SensorBox will become porous
over time. If, after a lengthy period of operation, you open and close the Sunny SensorBox or make
adjustments to the cable glands, then the gaskets and seals will no longer serve their intended
purpose.
Replace the gaskets if you open the Sunny SensorBox (e.g., for retrofitting needs) for the first time in
five years of operation. Be sure to order a new gasket set for the Sunny SensorBox before beginning
any maintenance work.
To replace the gaskets of the Sunny SensorBox, proceed as follows:
1. Open the Sunny SensorBox (see page 61).
2. Remove the relevant cable from the cable gland in the reverse order in which it is connected.