SMA Sensorbox User Manual
Page 47
SMA Solar Technology AG
Startup
Installation Guide
Sensorbox-IEN100914
47
3. Unscrew the cable gland's lock nut at the top right
of the installed Sunny SensorBox and remove the
filler plugs.
4. Thread the RS485 communication cable through
the lock nut and the cable gland and into the
enclosure of the installed Sunny SensorBox.
5. Remove 4 cm of cable sleeve from the RS485
communication cable that is connected to the
installed Sunny SensorBox.
6. Strip approx. 6 mm of insulation from the wires.
7. Twist the cable shield into one string.
8. Pull the insulating tube over the cable shield. Allow
4 cm of the cable shield to stick out of the insulating tube.
9. Insert the detached cable shield into the terminal.
10. Connect the wires to the "F2: OUT RS485" terminals
of the installed Sunny SensorBox.
Write down the color of the wires:
+12V ________________________
GND ________________________
D+ ________________________
D- ________________________
11. Make sure the gasket of the cable gland is properly seated.
12. Screw the lock nut onto the cable gland until finger tight to fix the RS485 communication cable
(torque: 0.8 Nm).
13. Close the installed Sunny SensorBox (see page 61).
☑ The RS485 communication cable is now connected to the installed Sunny SensorBox.
Connection to the Sunny SensorBox you Want to Connect
14. Mount the Sunny SensorBox you want to connect as described in section 6 ”Mounting the
15. Open the Sunny SensorBox (see page 61).
16. Unscrew the cable gland's lock nut on bottom right of the Sunny SensorBox you want to connect
and remove the filler plugs.