Connecting Message Devices for Operating States and Warning Messages
Qualified person
You can connect message devices to the multifunction relays to allow operating states and warning messages from the Sunny Island inverter to be output. One of the following operating states and warning messages can be displayed for each multifunction relay:
The PV array is running and is connected.
Voltage and frequency of the utility grid are within the range for connection.
A Sunny Island displays an error message of level 2 or higher. Only the error messages within a cluster are evaluated here.
- When an error message of level two is pending, the multifunction relay is deactivated.
- When no error message is pending, the multifunction relay is activated.
A Sunny Island displays a warning. Only the warnings within a cluster are evaluated here.
The Sunny Island is in operation in a single system.
The respective cluster is in operation in a cluster system.
The Sunny Island is in derating in a single system.
The respective cluster is in derating in a cluster system.
Different control logic for error messages of level 2 or higher
A different control logic of level 2 ensures that the error message will also be displayed in the case of automatic shutdown.
Requirements:
- The technical requirements of the multifunction relay must be met ( > Technical Data).
Cable requirements:
- Copper wire
- Conductor cross-section: 0.2 mm² to 2.5 mm²
Procedure:
- When making the following connections, always insert a silicone tube ( > Connecting Relay 1 and Relay 2).
- Connect the control cable on the Sunny Island to either multifunction relay Relay1 or Relay2. Use the C and NO connections.
- Enter the selected configuration into the table of the settings ( > Setting the Functions of the Multifunction Relays):
WARNING
Danger to life from electric shock due to incorrect insulation
In the case of faulty insulation, supposedly de-energized parts or cables may be live. Touching live components or cables can result in death or serious injury due to electric shock.
Value | Version |
|---|---|
Relay is activated when the generator is running | The PV array is running and is connected. |
Relay is activated when an external source is available | Voltage and frequency of the generator are within the range for connection. |
Relay is activated when the utility grid is available | The utility grid is connected in the off-grid system. |
Relay is deactivated in the event of an error | A Sunny Island displays an error message of level 2 or higher. |
Relay is activated in the event of a warning | A Sunny Island displays a warning. |
Relay is activated when the cluster is running | In a single system, the Sunny Island is operating, or in a cluster system, the cluster is operating. |
Relay is activated in the event of power limitation | In a single system, a Sunny Island is in derating, or in a cluster system, the cluster is in derating. |