Chapter 6—Motor Protection
Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com 137
Frequency Deviation (Slow)
The Frequency Deviation (Slow) protection monitors the line
frequency of the supply and will trip the motor if the
deviation from rated exceeds the set threshold. The
Frequency Deviation protection is active when the motor is in
the Energized state.
Protections R Frequency R Frequency Deviation Slow
Table 47. Hz Dev – Slow
Frequency Deviation (Fast)
The Frequency Deviation (Fast) protection monitors the line
frequency of the supply and will trip the motor if the
deviation from rated exceeds the set threshold. The
Frequency Deviation protection is active when the motor is in
the Energized state.
Protections R Frequency R Frequency Deviation Fast
Table 48. Hz Dev – Fast
Fault
Code Modbus
Fault Action Delay (Seconds)
Protection Action Units Min. Max. Default Min. Max. Default Modbus
13 Hz Deviation (Slow) Fault Trip 1069 0.01 Hz 10 500 10 1 60 20 1071
Fault Warning 1070 0.01 Hz 10 500 10 1 60 2 1079
Fault
Code Modbus
Fault Action Delay (Seconds)
Protection Action Units Min. Max. Default Min. Max. Default Modbus
12 Hz Deviation (Fast) Fault Trip 1066 0.01 Hz 2 200 10 20 2000 1000 1068
Fault Warning 1067 0.01 Hz 2 200 10 20 2000 2000 1079