Motor control and I/O board (RMIO)79RMIO board specificationsAnalogue inputsWith Standard Application Program two programmable differential current inputs(0 mA / 4 mA ... 20 mA, Rin = 100 ohm) and one programmable differential voltageinput (-10 V / 0 V / 2 V ... +10 V, Rin > 200 kohm).The analogue inputs are galvanically isolated as a group.Isolation test voltage 500 VAC, 1 minMax. common mode voltagebetween the channels±15 VDCCommon mode rejection ratio > 60 dB at 50 HzResolution 0.025 % (12 bit) for the -10 V ... +10 V input. 0.5 % (11 bit) for the 0 ... +10 V and 0 ...20 mA inputs.Inaccuracy ± 0.5 % (Full Scale Range) at 25 ∞C (77 ∞F). Temperature coefficient: ± 100 ppm/∞C(± 56 ppm/∞F), max.Constant voltage outputVoltage +10 VDC, 0, -10 VDC ± 0.5 % (Full Scale Range) at 25 ∞C (77 ∞F). Temperaturecoefficient: ± 100 ppm/∞C (± 56 ppm/∞F) max.Maximum load 10 mAApplicable potentiometer 1 kohm to 10 kohmAuxiliary power outputVoltage 24 VDC ± 10 %, short circuit proofMaximum current 250 mA (shared between this output and optional modules installed on the RMIO)Analogue outputsTwo programmable current outputs: 0 (4) to 20 mA, RL < 700 ohmResolution 0.1 % (10 bit)Inaccuracy ± 1 % (Full Scale Range) at 25 ∞C (77 ∞F). Temperature coefficient: ± 200 ppm/∞ C(± 111 ppm/ ∞F) max.Digital inputsWith Standard Application Program six programmable digital inputs (common ground:24 VDC, -15 % to +20 %) and a start interlock input. Group isolated, can be divided intwo isolated groups (see Isolation and grounding diagram below).Thermistor input: 5 mA, < 1.5 kohm ì1î (normal temperature), > 4 kohm ì0î(high temperature), open circuit ì0î (high temperature).Internal supply for digital inputs (+24 VDC): short-circuit proof. An external 24 VDCsupply can be used instead of the internal supply.Isolation test voltage 500 VAC, 1 minLogical thresholds < 8 VDC ì0î, > 12 VDC ì1îInput current DI1 to DI 5: 10 mA, DI6: 5 mAFiltering time constant 1 msPhone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
