(1) Standardized Usage Management & Maintenance System
Designate dedicated personnel for maintenance, including:

• Recording operational data and fault logs

• Regularly measuring performance parameters:

• Output frequency/current/voltage

• Internal DC voltage

• Heat sink temperature

• Ambient temperature/humidity

• Comparing data against benchmarks for early fault detection

• Documenting fault codes and operating conditions during trips for root cause analysis

核

(2) Enhance Routine Inspection of Frequency Converters
Conduct biweekly inspections including:

• Measuring and recording three-phase output voltages, checking balance

• Measuring and recording three-phase output currents, checking balance

• Recording heat sink and ambient temperatures

• Checking for abnormal vibrations/noises and verifying fan operation

(3) Strengthen Regular Maintenance
Perform quarterly maintenance:

• Remove accumulated dust and debris to ensure cleanliness

• Polish the operation panel to maintain clarity

• Inspect internal components for:

• Discoloration from overheating

• Cracks in damping resistors

• Swelling/leaking/vent protrusions in electrolytic capacitors

• Abnormalities or burnt areas on PCB boards

(4) Enhance Maintenance Training for Operators and Management Staff
Improve on-site maintenance capabilities of operators/managers to prevent failures caused by improper or delayed maintenance.

This concludes our discussion on frequency converter maintenance precautions. We hope this information helps you better understand frequency converters and perform proper equipment maintenance.