11 TECHNICAL DATA ON CONTROL CONNECTIONS11.1 TECHNICAL DATA ON CONTROL CONNECTIONSTable 53: The standard I/O boardStandard I/O boardTerminal Signal Technical information1 Reference output +10 V, +3%, maximum current: 10 mA2 Analogue input, voltage or cur-rentAnalogue input channel 10...+10 V (Ri = 200 kΩ)4-20 mA (Ri =250 Ω)Resolution 0.1 %, accuracy ±1 %Selection V/mA with dip-switches (see chapter 6.2.2.1 Selec-tion of terminal functions with DIP switches)3 Analogue input common (cur-rent) Differential input if not connected to groundAllows ±20 V common mode voltage to GND4 Analogue input, voltage or cur-rentAnalogue input channel 2Default: 4-20 mA (Ri =250 Ω)0-10 V (Ri=200 kΩ)Resolution 0.1 %, accuracy ±1 %Selection V/mA with dip-switches (see chapter 6.2.2.1 Selec-tion of terminal functions with DIP switches)5 Analogue input common (cur-rent) Differential input if not connected to groundAllows ±20 V common mode voltage to GND6 24 V aux. voltage +24 V, ±10%, max volt. ripple < 100 mVrmsmax. 250 mAShort-circuit protected7 I/O ground Ground for reference and controls (connected internally toframe ground through 1 MΩ)8 Digital input 1Positive or negative logicRi = min. 5 kΩ0-5 V = 015-30 V = 19 Digital input 210 Digital input 311 Common A for DIN1-DIN6 Digital inputs can be disconnected from ground, see chapter6.2.2.2 Isolation of digital inputs from ground.VACON · 152 TECHNICAL DATA ON CONTROL CONNECTIONS11 TEL. +358 (0)201 2121 · FAX +358 (0)201 212 205
