III. Transport system application Comprehensive current diagnosis type K6CM Target Application Conveyor system Facility details Weight Elevating device powered by a single motor that carries luggage, etc. up and down. Motor operation conditions 5.5kW/200V/4poles Driving the motor by direct connection to commercial power supply: 50Hz Failure mode Load abnormality Transport system Detection parameters Degradation level 1 Degradation level 1 measurement results obtained from K6CM-CI 45 Critical Degradation level 20 40 Current 18 35 Warning Moving Average Times:
0 14 16 Measurement value under critical operation 29 Degradation level 30 12 Current (A) 25 10 With weight mounted 20 8 10 15 6 Measurement value under normal operation 12 5 4 0 Normal 0 2 Without weight mounted (average value) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Measurement time (minutes) Alarm threshold degradation level 1 for this application (examples) Expected implementation effects Prevents degradation by detecting anomalies that are not evident in electric current values. Also detects load anomalies, e.g. when weight is too heavy. 17 Alarm threshold (Warning) 25 Alarm threshold (Critical) 35