Wilo Net – green terminal block

Wilo Net is a Wilo system bus intended for communication between Wilo products, e.g. to establish communication between

• two single pumps (installed in parallel in one y-pipe installation) as double pumps (double pump function)
• several pumps in connection with the Multi-Flow Adaptation control mode
• gateway and pump.

Bus topology:

The bus topology consists of multiple stations (pumps) that have been connected in series. The stations (pumps) are connected via a shared line.
The bus must be terminated at both ends of the cable. This is done for the two external pumps in the pump menu (Settings/External interfaces/Wilo Net settings). All other subscribers should not have activated termination.

All bus subscribers must be assigned an individual address (Wilo Net ID). This address is set in the pump menu (Settings/External interfaces/Wilo Net settings) of the respective pump.

In order to establish the Wilo Net connection, the three H, L, GND terminals must be wired with a communication cable from pump to pump. Use shielded cables for cables ≥ 2 m.
Connect incoming and outgoing cables in one terminal. They must have double ferrules for this purpose.