Table of Contents
Section 1 Understanding How Dynamic Braking Works
This section provides an overview of the components required to
do Dynamic Braking and their functionality.
How Dynamic Braking Works . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Dynamic Brake Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Section 2 Determining Dynamic Brake Requirements
This section steps you through the calculations necessary to
determine the amount of Dynamic Braking required for your
application.
How to Determine Dynamic Brake Requirements . . . . . . . . . . . 2-1
Determine Values of Equation Variables . . . . . . . . . . . . . . . . . . 2-4
Example Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Section 3 Evaluating the Internal Resistor
This section steps you through the process to determine whether
or not the available PowerFlex internal resistors are adequate for
your application.
Evaluating the Capability of the
Internal Dynamic Brake Resistor. . . . . . . . . . . . . . . . . . . . . . 3-1
PowerFlex 70 Power Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
PowerFlex 700 Power Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Section 4 Selecting An External Resistor
This section steps you through the process of selecting an
external resistor when the internal resistors prove to be
insufficient for your application.
How to Select an External Dynamic Brake Resistor . . . . . . . . . 4-1
Appendix A
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