Technical data vacon • 7624-hour support +358 (0)201 212 575 • Email: vacon@vacon.com77.2.1 Technical information on control connectionsTable 32. Technical information on standard I/O boardStandard I/O boardTerminal Signal Technical information1 Reference output +10V, +3%; Maximum current 10 mA2 Analogue input,voltage or currentAnalogue input channel 10- +10V (Ri = 200 k)4-20 mA (Ri =250 )Resolution 0.1 %, accuracy ±1 %Selection V/mA with dip-switches (see page 52)Short-circuited protected.3 Analogue input common(current)Differential input if not connected to ground;Allows ±20V differential mode voltage to GND4 Analogue input,voltage or currentAnalogue input channel 2Defauit: 4-20 mA (Ri =250 )0-10 V (Ri=200k)Resolution 0.1 %, accuracy ±1 %Selection V/mA with dip-switches (see page 52)Short-circuited protected.5 Analogue input common(current)Differential input if not connected to ground;Allows 20V differential mode voltage to GND6 24V aux. voltage+24V, ±10%, max volt. ripple < 100mVrms; max. 250mADimensioning: max. 1000mA/control unit.Short-circuit protected.7 I/O ground Ground for reference and controls (connected internally to frame earththrough 1M)8 Digital input 1 Positive or negative logicRi = min. 5k0...5V = “0”15…30V = "1"9 Digital input 210 Digital input 311 Common A for DIN1-DIN6 Digital inputs can be disconnected from ground, see chapter 5.1.2.2.12 24V aux. voltage+24V, ±10%, max volt. ripple < 100mVrms; max. 250mADimensioning: max. 1000mA/control unit.Short-circuit protected13 I/O ground Ground for reference and controls (connected internally to frame earththrough 1M)14 Digital input 4 Positive or negative logicRi = min. 5k0...5V = “0”15…30V = "1"15 Digital input 516 Digital input 617 Common A for DIN1-DIN6 Digital inputs can be isolated from ground, see chapter 5.1.2.2.18 Analogue signal (+output) Analogue output channel 1, selection 0 -20mA,load <500 Default: 0-20 mA0-10VResolution 0.1 %, accuracy ±2 %Selection V/mA with dip-switches (see page 52)Short-circuited protected.19 Analogue output common30 24V auxiliary input voltage Can be used as external power backup for the control unit.A RS485 Differential receiver/transmitterSet bus termination with dip switches (see page 52)B RS485