6 Electrical Connection
SMA Solar Technology AG
Operating manual
SI44M-80H-13-BE-en-15
60
5. When all data cables are connected, select two cable support sleeves with a suitable number of openings.
6. Open the cable support sleeves and place the cables in the cable
support sleeves.
2
1
7. Open the cable feed-through plate and insert the cable support
sleeves into the cable feed-through plate. Position the flat sides of
each cable support sleeve on the flat side in the cable feed-
through plate.
8. Hold the cables and push the cable feed-through plate to the
enclosure opening of the cable feed-through plate.
9. Hook the cable feed-through plate into the enclosure opening of the cable feed-through plate and press into the
enclosure opening.
6.6.5
Connecting Relay 1 and Relay 2
If you are using a multifunction relay, always connect it as follows:
Switching Behavior of the Slaves
In case of a fault, the multifunction relays of the slaves switch less reliably than the multifunction relays of the
masters. In case of a fault, the slaves wait for the master to confirm the fault.
Correct assignment of terminals for three-pole terminal block:
Connection
Explanation
NC
Closed when idle
C
Change-over contact
NO
Open when idle
Additionally required material (not included in the scope of delivery):
☐ Suitable bootlace ferrules if using stranded wire
Requirements:
☐ The technical requirements of the multifunction relay must be met (see Section 16, page 175).
