SMA Solar Technology AG 6 Electrical Connection
Installation Manual SI80H-60H-OffGrid-IA-en-11 57
6.20 Connecting a Signal Generator for Generators Without
Autostart Function
Generators without an autostart function do not have electric starting devices. If you install a
generator without autostart function, you can connect a signal generator (e.g. signal lamp) to the
multi-function relay of the off-grid inverter. The off-grid inverter can then signal when the generator is
to be manually started and stopped.
Figure19: Connection of a signal generator for signalling a generator request (example)
Connecting a signal generator in a cluster
Slaves control the generator less reliably than masters do.
• Connect the generator control only to the master.
• In a multicluster system, always connect the signal generator to the master of the main
cluster.