Chapter 6 Ch6

User Manual: Chapter 6 DURApulse GS4 AC Drives User Manual

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Page 6–1DURApUlse GS4 AC Drive User Manual – 1st Ed, RevB - 11/17/2017Maintenance and troubleshooting 666chapterchapterchapterTable of ConTenTsMaintenance and Inspections � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–2Monthly Inspection � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6–2Annual Inspection � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6–2Recharge Capacitors (for drives not in service) � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6–3Recommended Inspection Schedules � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6–4Troubleshooting � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–8Warning Codes� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6–8Fault Codes� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–16Typical AC Drive Problems and Solutions � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6–26Grease and Dirt Problems� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–26Fiber Dust Problem � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–27Corrosion Problem� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–28Industrial Dust Problem � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–29Wiring and Installation Problem � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–30Digital Input/Output Terminal Problems� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6–31
Page 6–2 DURApUlse GS4 AC Drive User Manual – 1st Ed, RevB - 11/17/2017Chapter 6: Maintenance and TroubleshootingMaintenance and inspectionsModern AC drives are based on solid state electronics technology, including ICs, resistors, capacitors, transistors, cooling fans, relays, etc. These components have a limited life under normal operation. Preventive maintenance is required to operate the GS4 drive in its optimal condition, and to ensure a long life. We recommend that a qualified technician perform a regular inspection of the GS4 drive. Some items should be checked once a month, and some items should be checked yearly.NOTE: All inspections should be accomplished with Safety in mind with due and required caution. Some of these Inspection items may require the Drive to be powered down, while others may require power to be applied. Proper safety precautions including the use of PPE are/may be required. Please review cautionary statements in each sectionMonthly InspectIonCheck the following items at least once a month.1) Make sure the motors are operating as expected�2) Make sure the drive installation environment is normal�3) Make sure the enclosure and drive cooling systems are operating as expected�4) Check for irregular vibrations or sounds during operation�5) Make sure the motors are not overheating during operation�6) Check the input voltage to the GS4 drive and make sure the voltage is within the operating range� Check the voltage with a voltmeter�AnnuAl InspectIonCheck the following items once annually.1) Check the torque of the GS4 power and control terminal screws and tighten if necessary� They may loosen due to vibration or changing temperatures�2) Make sure the conductors and insulators are not corroded or damaged�3) Check the resistance of cable insulation with a megohmmeter�4) Clean off any dust and dirt with a vacuum cleaner� Pay special attention to cleaning the ventilation ports and PCBs� Always keep these areas clean� Accumulation of dust and dirt in these areas can cause unforeseen failures�5) Recharge the capacitors of any drive that is in storage or is otherwise unused�

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