SMA SI 3.0-11 Installation - Manual (Page 41)

SMA Solar Technology AG 7 Electrical Connection
Installation Manual SI30M-44M-60H-80H-IA-en-30 41
4. On the Sunny Island, connect the conductors to the terminals
BatCur + and BatCur − . Ensure that the cable is correctly
connected (see Section 7.5.6 "Connecting BatVtgOut, DigIn,
BatTMP, and BatCur", page 56).
7.4.10 Connecting the Control Cable for Autostart Generators
Autostart generators are started and stopped with a contact.
Figure 15: Connection of the generator control to the Sunny Island
Requirements:
☐ The technical requirements of the multifunction relay must be met (see Section 10 "Technical Data", page 94).
Cable requirements:
☐ Copper wire
☐ Conductor cross-section: 0.2 mm² to 2.5 mm²
Procedure:
2. Go to Section 8.1.5, page 66 and enter AutoGn in the table for configuration.
Generator control in a cluster
Slaves control the generator less reliably than masters do.
• Connect the generator control preferably to the master.
• If the off-grid system is a multicluster system, always connect the generator control to the master of the main
cluster.
1. :$51,1*
Danger to life from electric shock due to incorrect insulation
• Connect the control cable on the Sunny Island to either
multifunction relay Relay1 or Relay2 (see Section 7.5.5
"Connecting Relay 1 and Relay 2", page 55). Use the C and
NO terminals.