How to test and troubleshoot power component of ππ ππΏπΆππ² or π©ππ? What need to check? How to identify defective component?
This ππ ππΏπΆππ² π§π²πππΆπ»π΄ π£πΏπΌπ°π²π±ππΏπ², could help drive engineer, technician and maintenance personnel to test / check AC Drive power component, and troubleshoot:
βͺοΈ Blown input fuse / MCCB trip
βͺοΈ No output voltage
βͺοΈ Converter / Rectifier Section
βͺοΈ DC Bus Capacitor
βͺοΈ Inverter / IGBT section
βͺοΈ Shorted component
As shown on page 1, AC Drive or Variable Frequency Drive ( VFD) or sometimes called inverter, consist of 3 main power section:
1οΈβ£ Converter / Rectifier
It is used to convert or rectify 50/60Hz AC voltage to unfiltered DC Voltage.
2οΈβ£ DC Link Filter or DC Bus
Consist of DC Coke and capacitor and used to smooth out the ripple of DC voltage and store DC voltage
3οΈβ£ Inverter or Power module
It is used to convert back from DC voltage to AC voltage to drive motor.
Inverter is controlling frequency and the voltage of drive output.
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380VAC , 0.75-4 Kw Drive
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