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DuRApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 6: Maintenance and Troubleshooting
MaintenanCe anD insPeCtiOns
Modern 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 section
monThly inspeCTion
Check 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 inspeCTion
Check 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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