omron — K6CM series Application Guide

II. Fan system application Vibration/Temperatue monitoring type K6CM Target Application Oven cooler fan motors Facility details Cooling fan for metal can drying oven. Motor operation conditions 18.5kW/200V/4poles Inverter drive frequency:

30Hz Fan system Measured motor Failure mode Deterioration over time Detection parameters Acceleration Acceleration measurement results obtained from K6CM-VBM 1.8 1.6 1.4 Measurement value of motor that has not been maintained for seven years 1.25 G Acceleration (G) 1.2 1 Abnormal condition value 0.8 0.6 (G) Warning Abnormal Threshold critical Threshold warning 0.4 0.2 0 0.0 0.5 1.0 1.5 2.0 Measurement time (minutes) Ч10 4 Shaft diameter D [mm] X Rotation speed N [rpm] Threshold for this application (examples) Expected implementation effects Enables the user to assess the right timing for maintenance based on the degree of deterioration instead of elapsed time.

Automatically notifies the user when to perform maintenance. 9 Moving Average Times: 0 Critical Warning Normal 10.00 1.00 0.10 0.01 0 2 4 6 8 10 12 14 16 18 20 Alarm threshold (Warning) 0.13G Alarm threshold (Critical) 0.57G