Connection of switched outputs
1 | Inverter |
2 | Smart Communication Board |
3 | Terminal with four switched outputs (OUT 1-4) |
4 | Load relay |
5 | Jumper switch |
6 | Consumers/actuators |
The inverter allows consumers to be connected to it via an external load relay, which can be switched on when there is sufficient PV or grid surplus feed-in power and thereby use the PV energy generated at that point in time.
If there is an event message, the inverter can trigger an actuator connected to the switched output (warning light, message signal, smart home system), providing information about the event that occurred.
More information about configuration Switched outputs.
Electrical connection of switched output
Check which connection method is required for the external device. For more information, please refer to the manual of the device to be controlled.
Switched output for 230 V loads via load relay:
1 | Smart Communication Board (SCB) |
2 | Terminal for self-consumption control |
3 | Sealing ring |
4 | Union nut |
5 | Control line |
6 | Load relay/connection via potential-free contact |
7 | Jumper switch |
8 | Consumer device |
Use of a load relay to decouple and control 230 V loads.
- Load control operating mode: Here, an external load (e.g. washing machine or air conditioning system) is triggered.
- Events operating mode: As soon as an event is present, an external load (e.g. lamp or signal horn) is triggered.
Switched output for external devices via potential-free contact:
1 | Smart Communication Board (SCB) |
2 | Terminal for self-consumption control |
3 | Sealing ring |
4 | Union nut |
5 | Control line |
6 | Load relay/connection via potential-free contact |
Connection of external devices, for example a heat pump, wallbox or smart home system input module, directly to the digital input's switched output.
- SG Ready operating mode: Here, the switching signal (e.g. contact closes) for using the PV energy is routed directly to the heat pump's digital input.
- Wallbox operating mode: The charging process is started as soon as the contact is closed. The wallbox offers a digital/signal input for this purpose.
- Events/external control operating mode: The external device is controlled via a digital/signal input. This can be, for example, a KNX control unit or another smart home system.
To connect the electrical switched output, follow the steps below:
DANGER
Risk of death due to electrical shock and discharge!
- De-energise device and secure against being switched on again.
INFO
Damage to the inverter
If loads need to be switched and require a higher load at the switched output than 24 V/100 mA, an external load relay must be installed between the inverter and the consumer. No consumers may be connected directly to the inverter.
If there are loads or consumers that are controlled via a potential-free switching contact (e.g. SG-ready heat pump control or smart home systems), these consumers can be connected directly to the switched output.
Switched output load, potential-free:
Max. load: 100 mA
Max. voltage: 24 V (DC)
INFO
The signal cable is subject to the following requirements:
Conductor cross-section from 0.2 to 1.5 mm2
Length of stripped insulation 8 mm
- De-energise the house grid.
- Connect the load relay or consumer correctly to one of the switched outputs (e.g. OUT1) at the Smart Communication Board.
- Correctly install and connect the other self-consumption control components.
- The electrical connection is complete.