SMA SUNNY ISLAND 8.0H - Cluster; Constant voltage phase

6 Electrical Connection SMA Solar Technology AG
68 SI80H-60H-OffGrid-IA-en-11 Installation Manual
6.29 Connecting the External Generator Request
An external control signal can transfer a generator request to the generator management. If you have
configured generator management for external generator request, generator management starts the
generator when High Level is active. All generator run times are adhered to here.
Figure23: External generator request closes the relay if the generator is to be requested (example).
If the generator ist to be requested externally, connect the control as follows:
Additionally required material (not included in scope of delivery):
☐ 4 bootlace ferrules
1. Break through the cable feed-through plate at a suitable position using a sharp object.
2. Strip the insulation from the cable of the external generator request and press the bootlace
ferrules onto the two wires.
3. Lead the cable through the hole in the cable feed-through plate into the off-grid inverter.
4. Connect one wire to the BatVtg+ terminal with the 4-pole terminal (torque: 0.5 Nm ... 0.6 Nm).
5. Connect one wire to the DigIn+ terminal with the 4-pole terminal (torque: 0.5 Nm ... 0.6 Nm).
6. Connect the BatVtg– terminal to the DigIn– terminal (torque: 0.5 Nm ... 0.6 Nm).
Use the same conductor as in the control cable.