Chapter 6—Motor ProtectionPower Xpert C445 Global Motor Management Relay MN042003EN—October 2016 www.eaton.com 147Load ProtectionPower-based protections provide superior protection for load-based conditions such as a dead-headed or starved pump.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 FaultUndercurrentThe Undercurrent protection monitors the average current ofthe motor and will trip the motor if the unbalance dropsbelow the set threshold. The Undercurrent protection isactive when the motor is in the Running state.Table 51. UndercurrentLow PowerThe Low Power protection monitors the kW consumed(supply side) by the load and will trip the motor if themeasured value is lower than the set threshold. The LowPower protection is active when the motor is in the Runningstate. The rated power is calculated from the rated HP inputby the user.Table 52. Low PowerFaultCode ModbusFault Action Delay (Seconds)Protection Action Units Min. Max. Default Min. Max. Default Modbus14 Undercurrent Fault Trip 1021 % FLA 10 90 50 1 60 20 1023Fault Warning 1022 % FLA 10 90 50 1 60 2 1079FaultCode ModbusFault Action Delay (Seconds)Protection Action Units Min. Max. Default Min. Max. Default Modbus16 Low Power Fault Trip 1049 % 0 200 50 1 60 20 1051Fault Warning 1050 % 0 200 50 1 60 2 1079
