The ZAC24-IP-D controller is equipped with a DALI port (DALI1) with a screw connector to connect a DALI-2 bus.
DALI-2 Bus Power Supply
The ZAC24-IP-D controller has an internal power supply for DALI-2 bus, which provides a maximum current of 170 mA. The current output that guarantees the voltage would not fall below 12 V is up to 125 mA.
It is also possible to connect an external power supply to the DALI-2 bus. However, it is crucial that the maximum current on the bus does not exceed 250 mA. If there are multiple power supply sources on the bus, the combined maximum current still cannot exceed 250 mA. Exceeding this value may cause damage to the device and other devices connected to the DALI-2 bus.
Warning
The maximum current load on the DALI-2 bus with external power supply is 250 mA.
DALI-2 Bus Topology
The DALI-2 bus can operate up to 64 input devices and up to 64 control gear devices.
The bus can be powered directly from the controller or with the external power supply.
If powered directly from the controller, the maximum bus current is 170 mA.
If powered with the external power supply, the maximum total bus current cannot exceed 250 mA.
