Chapter 6—Motor Protection138 Power Xpert C445 Global Motor Management Relay MN042003EN—October 2016 www.eaton.comMotor ProtectionThe motor protections functions that are listed in this sectionmonitor motor current (average, minimum, or maximumphase currents) to detect various motor running faults.These protections functions may be disabled during a start.These protections are also disabled if the maximum phasecurrent is less that 50% of the Motor FLA set-point.Note: For protections functions to operate appropriately, themotor FLA must be configured for the application.Users can easily customize protection settings in theprotection menu of the Monitoring User Interface or ofPower Xpert inControl.To enable/disable individual trip and warning protections,navigate to Protections R General R Trip Enable / WarningEnable.To customize protection levels and delays for each protectionfeature, navigate to the category of that protection inProtections R Current / Voltage / Power / Frequency /Ground Fault.Fault WarningsFault Warnings in many cases react to the same parametervalues as Fault trips. Fault Warning events display the faultinformation but do not trip the controlled device. Similar toFault Trips, Fault Warnings are subject to delay times notedin Modbus register 1079. This register sets the delay timesfor all Fault Warnings in all fault warnings protections.Table 34. Fault WarningsFault ActionProtection Action Modbus Units Min. Max. DefaultFault Warning Alarm Delay 1079 ms 20 5000 2000
