K6CM Target Application Heat exhaust fan Facility details Fan for exhausting heat generated from indoors facilities to the outdoors Motor operation conditions Fan system 2.2kW/200V/4 poles Direct connection to commercial power supply: 60Hz Failure mode Pulley wear (V-belt slips; abnormal noise) Detection parameters Degradation level 1, 2 Degradation level 1,2 measurement results obtained from K6CM-CI Degradation level 1 log data Degradation level 2 log data 90 300 80 280 Degradation level 1 70 Degradation level 2 260 60 220 240 50 200 40 180 30 0 1 2 3 4 5 160 0 1 2 3 4 5 Measurement time (minutes) Measurement time (minutes) Measurement value under abnormal operation:
75 Measurement value under abnormal operation: 275 Measurement value under normal operation: 57 Measurement value under normal operation: 180 Alarm threshold degradation level 1,2 for this application (examples) Example of degradation level 1 alarm threshold Example of degradation level 2 alarm threshold 14 II. Fan system application Comprehensive current diagnosis type Critical Warning After o verhauling ( Moving Averag e Times: 32) Normal Before overhauling (Moving Avera ge Times: 32) Critical Warning After overhauling ( Moving Averag e Times: 32) Befor e overhauling (Moving Aver age Times:
32) Normal Alarm threshold (Warning) 60 Alarm threshold (Critical) 70 Alarm threshold (Warning) 200 Alarm threshold (Critical) 250