Single-axis controllers Control terminals 4 4.7 Digital outputs The controller features four freely configurable digital outputs. Note! For stable digital output states, in particular during the starting phase of the controller, you must use an external 24V supply for the digital outputs. Note! Digital inputs and digital outputs have separated reference potentials (GI and GO). If you interconnect inputs and outputs, the reference potentials are connected as well by an external bridge. ~ + - 24 V = F GO X4 GND GO X4 24O In 24O DO2 DO1 DO2 DO1 DO3 DO3 DO4 DO4 Fig. 4.7-3 Wiring principle SSP94X4DO1 Wiring with a digital input, e.g.
a PLC Digital control (relay, valve, ...) with an external 24-V supply X4 Terminal for the digital outputs In Digital input, e.g. of a control GND Earth reference potential F Fuse 4.7-8 EDS94SPP101 EN 3.1-04/2007 Electrical data 24O (external voltage source, optional) Rated voltage 24 V According to IEC 61131-2 Current consumption Max. 300 mA DO1 ... DO4 Switching level LOW HIGH According to IEC 61131-2 0 V ... +5 V +15 V ... +30 V Output current Max. 50 mA Load > 480 Ω at 24 V