SMA SUNNY SENSORBOX Installation Manual page 34

Electrical Connection
8. Push the two communication cables connected to the
RS485-Power Injector into the clips of the shield
clamp. The clips of the shield clamp must be
positioned on the conductive adhesive foil.
9. Lay a cable from the RS485-Power Injector to the
Sunny SensorBox.
Connecting the communication cable to the
Sunny SensorBox
10. Open the Sunny SensorBox as described in section 10.1 "Opening the Sunny SensorBox"
(page 51).
11. Unscrew the cable gland's lock nut on the right at the
bottom of the Sunny SensorBox in a counterclockwise
direction and remove the filler plugs.
12. Thread the cable through the lock nut and the cable
gland into the Sunny SensorBox enclosure.
13. Loosely turn the lock nut in a clockwise direction onto
the cable gland during further work.
NOTICE!
Risk of short circuit due to metal or cable scraps falling into the Sunny SensorBox during
installation.
Possible damage of the electronics of the Sunny SensorBox.
• When working on the cable, make sure that no metal scraps of the shield or the cable
fall into the open Sunny SensorBox.
• Remove any metal or cable scraps, if required.
14. Remove 1.6 in cable sleeve of the RS485
communication cable on the Sunny SensorBox.
15. Strip approx. 0.2 in. off the insulated conductors.
16. Twist the shield to one string. The shield is only
required, if another Sunny SensorBox is connected.
17. Pull the insulating tube provided over the shield.
Allow 0.4 in. of the shield to protrude out of the insulating tube.
34 Sensorbox-IUS084413
SMA Solar Technology AG
Installation Guide