Connecting Signal Source to Digital Input
Digital signals for the active power supply can be transmitted to the jack X3. A ripple control receiver or a remote terminal unit can be used as a digital signal source, for example.
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Digital signal source with up to 4 potential-free contacts
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Connection cable
Requirements:
The signal source must be technically suitable for connection to the digital inputs ( > Technical Data).
The connected digital signal source has a safe separation to the grid potential. When connecting the digital signal source the potential-free contact or an external potential-free contact is used.
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The connection cable must be prepared for connection to the multipole terminal block ( > Preparing the Connection Cable).
Overview:
Pin assignment
Pin | Pin assignment | Explanation |
|---|---|---|
1 | DI1 | Digital input |
2 | DI2 | Digital input |
3 | DI3 | Digital input |
4 | DI4 | Digital input |
5 | DI5 | Fast stop1) |
6 | 24 V | Voltage supply output |
1) With the fast-stop function, depending on the set inverter operating mode, inverters can be disconnected from the utility grid or enter into standby operation. For further information on SMA products with fast-stop function see manual of the SMA products.
Circuitry overview:
Connection of a Ripple Control Receiver
- Connect the connection cable to the digital signal source (see the manual from manufacturer).
- Connect the connection cable to the supplied six-pole plug. For this, unlock the required terminal positions using a suitable tool and plug the conductors into these terminal positions.
- Connect the six-pole plug to terminal X3. Observe the pin assignment.
- Note the terminal assignment.