Eaton Power Xpert C445 - C445 UM Fault and Event Diagnostics

Chapter 6—Motor Protection
138 Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com
Load Protection
Power-based protections provide superior protection for load-
based conditions such as a dead-headed or starved pump.
Users can easily customize protection settings in the
protection menu of the Monitoring User Interface or of
Power Xpert inControl.
To enable/disable individual trip and warning protections,
navigate to Protections R General R Trip Enable / Warning
Enable.
To customize protection levels and delays for each protection
feature, navigate to the category of that protection in
Protections R Current / Voltage / Power / Frequency /
Ground Fault
Undercurrent
The Undercurrent protection monitors the average current of
the motor and will trip the motor if the unbalance drops
below the set threshold. The Undercurrent protection is
active when the motor is in the Running state.
Table 49. Undercurrent
Low Power
The Low Power protection monitors the kW consumed
(supply side) by the load and will trip the motor if the
measured value is lower than the set threshold. The Low
Power protection is active when the motor is in the Running
state. The rated power is calculated from the rated HP input
by the user.
Table 50. Low Power
Fault
Code Modbus
Fault Action Delay (Seconds)
Protection Action Units Min. Max. Default Min. Max. Default Modbus
14 Undercurrent Fault Trip 1021 % FLA 10 90 50 1 60 20 1023
Fault Warning 1022 % FLA 10 90 50 1 60 2 1079
Fault
Code Modbus
Fault Action Delay (Seconds)
Protection Action Units Min. Max. Default Min. Max. Default Modbus
16 Low Power Fault Trip 1049 % 0 200 50 1 60 20 1051
Fault Warning 1050 % 0 200 50 1 60 2 1079