Engineering White Paper

DC Injection Braking.

DC injection braking is a method of stopping an induction motor without the use of a frictional braking mechanism or additional braking resource, like a dynamic brake resistor. This article explains how KB Electronics motor controls (also referred to as VFDs and drives) implement DC injection braking and how applications benefit from it when additional braking resources are undesirable. In addition, we will compare other braking methods and discuss the advantages and disadvantages of each. KB Electronics offers a full line of motor controls capable of providing satisfactory stopping with DC injection braking.

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