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