Assembly instructions Owner manual

7
Connection
7. Connection
 Connect the minus side of the inputs to the open collector outputs of the interface card(s) (see fig.1).
 Connect the positive side of all inputs with a control voltage (ex. +9Vdc to 12Vdc). The negative (GND)
of the control voltage must also be connected to the Common (or GND) of the open collector card.
 Keep in mind that EACH input of the triac card takes about 12mA from the power supply !
 This control voltage has to be COMPLETELY ISOLATED!
 To supply the card a separate supply must be used of 9Vdc (see fig. 1)
 Connect the supply for the loads to the points VAC. It may range between 24 and 240 VAC.
Fig.1