Hardware 3.4 Power supply System and outputs are supplied via separate connectors (for the location of the connectors see chapter 3.2). This al- lows you to switch off all outputs without having to discon- nect the controller from its power source. To ensure uninterrupted operation, lay the supply cables separately, using the shortest possible cables to connect the power source with the controller’s supply terminals. If you are using two different power source, you are obli- ged to equalise the potential between the 0V connectors. 3.4.1 System power supply The system power supply connects to a 2-pin plug-type ter- minal block. Ш Connectors: L1- а 0V L1+ а +24V DC Ш Voltage:
24 V DC -20%/+25% Ш Power consumption: c. 100 mA The outputs are supplied separately. However, potentials of system and output supplies are not separated. For a description of the output supply voltage connector refer to chapter 3.6. 27