Omron K6CM User Manual page 75

Monitoring by Degradation Level 2
Use the following setting values at first.
Degradation level 2 alarm threshold value (Warning): 20
Degradation level 2 alarm threshold value (Critical): 50
Since the value of degradation level 2 differs depending on the equipment status and motor driving con-
ditions, set alarm threshold values suitable for the equipment using the above alarm threshold values
as a guide.
Refer to the K6CM Motor Condition Monitoring Device STARTUP GUIDE (N221-E1) for details.
 When driving the motor with an inverter
Degradation level 2 clearly captures not only the noise caused by inverter driving but also other fac-
tors such as the frequency components affecting the rotating shaft of the motor, and represents
them as numerical values. Since a motor or load abnormality is captured with excellent sensitivity
and the variations in the numerical values are also small compared with degradation level 1, degra-
dation level 2 is suited to monitoring an inverter-driven three-phase induction motor.
Choose whether to use degradation level 1 or degradation level 2 depending on the equipment to be
monitored.
Driving the motor with an inverter (normal)
Inverter noise
K6CM Motor Condition Monitoring Device User's Manual (N219)
Degradation level 2: 15
3 Measuring and monitoring System
Driving the motor with an inverter (warning)
Degradation level 2: 30
Components affecting the rotating shaft
Inverter noise Inverter noise
3
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