omron — K6CM series Application Guide (EN)

I. Pump system application Comprehensive current diagnosis type K6CM Target Application Washing pumps for automotive components Pump system Facility details Washing tank Pump for washing. Motor-driven pump sends washing water to the washing tank. Motor operation conditions Water intake 11kw/200V/4poles Inverter drive frequency:

60Hz Motor Pump Failure mode Consistent flow of washing water Load abnormality (Cavitation) Detection parameters K6CM-CICB Degradation level 1 K6CM-CIM Degradation level 1 measurement results obtained from K6CM-CI  The current waveform data * 60 60 Waveform irregularities 40 40 20 20 Current (A) 0 Current (A) 0 -20 0 50 100 150 200 50 100 150 200 -20 0 -40 -40 -60 -60 Normal Condition Abnormal Condition Time (ms) Time (ms) Measurement value under normal operation: 20 Measurement value under abnormal operation: 75 * K6CM does not output electric current waveform data. Abnormal operation:

Air bubble has entered the pump, causing an air lock Alarm threshold degradation level 1 for this application (examples) Expected implementation effects Detects air locks in pumps and other abnormal conditions so that the system can be maintained before degradation causes it to shut down. 5 Alarm threshold (Warning) 30 Alarm threshold (Critical) 50