Chapter 7—Monitoring and Diagnostics142 Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.comTable 55. Power-Based MonitoringParameter Name Range/Units DescriptionWatts Total Depends on frame size (watts) Total real power. 5% accuracy.VA Total Depends on frame size (Volt-Amps) Total apparent power. 5% accuracy.VARS Total Depends on frame size (Vars) Total reactive power. 5% accuracy.Power factor 0–100%, Scaled by 0.01% via fieldbus Apparent power factor in percentage. 1% accuracy.Speed RPM Depends on motor (0.1 RPM) Motor speed in RPMTorque Depends on motor (0.01 Nm) Motor torqueEfficiency percent PC tool in %, scaled by 0.01% via fieldbus Motor efficiency in percentageReal energy Depends on frame size (0.1 kWh) Real energy scaled. 5% accuracy.Real energy (resettable) Depends on frame size (0.1 kWh) Real energy (resettable) scaled. 5% accuracy.Apparent energy Depends on frame size (0.1 kVAh) Apparent energy scaled. 5% accuracy.Apparent energy (resettable) Depends on frame size (0.1 kVAh) Apparent energy (resettable) scaled. 5% accuracy.Reactive energy Depends on frame size (0.1 kVARh) Reactive energy scaled. 5% accuracy.Reactive energy (resettable) Depends on frame size (0.1 kVARh) Reactive energy (resettable) scaled. 5% accuracy.Current demand value Depends on frame size (watts) Latest estimate of the demand. 5% accuracy.Demand (resettable) Depends on frame size (watts) Peak demand, user resettable. 5% accuracyPeak demand time stamp Time in seconds Peak demand time stamp (in Unix time)Demand window duration Time in minutes Demand window durationTable 56. System MonitoringParameter Name Range/Units DescriptionMotor state (current based) 0: stopped;1: accelerating;2: runningCurrent based motor state (independent of command)Motor control status See table below Present motor control status bitsNumber of operating seconds Time in seconds Number of operating secondsOperating seconds (resettable) Time in seconds Number of operating seconds (resettable)Time to trip overload Time in seconds Time for overload to reach trip threshold (100%)Time to reset overload Time in seconds Time for overload to reach reset threshold (thermal memory must drop below 75%)PTC status See table below PTC statusDigital input status 0/1 ON/OFF status of digital inputs.Base Control Module relay status 0/1 Base Control Module relay status (output status)Total motor run time Time in seconds Total motor run time in secondsTotal motor run time (resettable) Time in seconds Total run time user (resettable)Last measured starting time Time in seconds The amount of time the motor took to reach up to speed on the last start.Number of starts Number Total number of motor startsNumber of starts (resettable) Number Number of starts (resettable)Number of contactor operationslast hourNumber Number of contactor operations during the last hourLatest run time Time in seconds Duration in seconds of the last start-to-stop motor run timeThermal capacity 0–250% Thermal capacity in percent—overload trip occurs at 100%.
