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What are the factors to consider in selecting the braking resistor for Altivar drives?

FA406765

23 January 2021

Issue:
What are the things to consider in selecting the braking resistors for Altivar drives?

Product Line:
All Altivar Drives

Environment:
All

Cause:
Needs to know if the factors to consider in selecting the braking resistor for Altivar drives

Resolution:
1.) Resistance - Choosing a too low resistance may damage the drive.  Too high and it's not as effective as a brake.  That's because higher resistance means we will get lower current from the drive.  Lower resistance means higher currents and too high current can damage the braking IGBT in the drive.

2.) Watts - Higher wattage means more durable braking resistor.