SMA 20000TL Installation - Manual (Page 28)

5 Electrical Connection SMA Solar Technology AG
28 PCONTROLMOD-IA-en-15 Installation Manual
5.8.2 Connecting the Remote Terminal to the Multifunction Relay
Requirements:
☐ You must select the connection option depending on the desired function of the multifunction
relay (see Section 5.8.1 "Connection Options for the Multifunction Relay", page 24).
☐ The technical requirements of the multifunction relay must be met (see Section 9 "Technical
Data", page 36).
☐ The enclosure opening on the inverter must be prepared (see Section 5.4, page 18).
☐ The connection cable must have been prepared for connection to the multi-pole plug
(see Section 5.5, page 19).
☐ Only use contactors which meet the connection requirements of the multifunction relay
(see Section 9 "Technical Data", page 36).
Figure 10: Pin assignment of the module at the multifunction relay terminal
Destruction of the multifunction relay as a result of excessive contact load
• Observe the maximum switching voltage and maximum switching current (see Section 9
"Technical Data", page 36).
• Only use suitable contactors (see Section 9 "Technical Data", page 36).
Pin Signal Explanation
9 NC Back contact
8 NO Front contact
7 CO Change-over contact