Eaton HFX Series Installation And Operation Manual

EATON HFX Product Family Installation and Operation Manual E-ELCL-II002-E2 July 20192916.1 ThermistorWe use 22 kΩ Pull-up resistors in this mode and therefore recommend that you use resistances in therange of 10 kΩ and 50 kΩ for optimal performance. The defaults shown above were derived from measuringan actual 100 kΩ thermistor.Thermistor example of actual readings per channel.InputChannel 0 ohm 100 ohm 1 kohm 10 kohm 20 kohm 50 kohm1 10.8 113.8 1010.9 10088.8 20350.0 52347.02 10.2 108.5 1007.0 10089.2 20350.0 52438.03 6.8 108.5 1005.2 10089.2 20350.0 52418.04 8.8 108.5 1005.0 10074.8 20330.0 52346.05 5.4 108.3 1005.0 10066.0 20309.7 52283.06 10.8 108.5 1005.0 10066.0 20309.7 52346.07 X 103.0 999.1 10043.0 20269.8 52210.08 X 103.0 999.1 10031.3 20239.8 52094.09 0 99.5 993.2 10019.8 20228.7 52068.010 5.4 108.5 1005.0 10066.0 20309.7 52336.011 0 98.6 993.2 10006.0 20188.3 51969.012 0 102.5 999.1 10054.5 20289.4 52220.013 5.8 108.5 1005.0 10054.5 20289.4 52283.014 5.4 105.8 1005.0 10066.0 20309.7 52283.015 6.8 108.5 1005.0 10077.6 20330.0 52400.016 6.4 108.5 1005.0 10077.8 20331.0 52408.016.2 Frequency ConfigurationFigure 3: Frequency/Digital Input I/O Mapping Tab.The tab displays the following: Selected Input,Variable, Address, Type, and Description. The tabalso has predefined measurements of Voltage,Duty Cycle, Phase Angle, Pulse Count, Frequency,and Digital Value.Variables:• digitalInVoltage#: This is the voltage present at theinput pin.• digitalInDutyCycle#: This is the measured dutycycle at the input pin.• digitalInPhaseAngle#: This is the phase anglerelative to the channel pair defined in theconfiguration• digitalInPulseCount#: This is a rolling pulse counter.• digitalInFrequency#: This is the measuredfrequency of the input waveform.• digitalInValue#: This is the digital value afterdebounce and rising/falling voltage thresholds areapplied.HFX Product Family