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Allen-Bradley PowerFlex 70 Reference Manual

Allen-Bradley PowerFlex 70
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Table of Contents iii
Appendix A Dynamic Brake Selection Guide
Table of Contents
Section 1
Understanding How Dynamic Braking Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Dynamic Brake Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Section 2
Determining Dynamic Brake Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
How to Select an External Dynamic Brake Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Index

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Allen-Bradley PowerFlex 70 Specifications

General IconGeneral
BrandAllen-Bradley
ModelPowerFlex 70
CategoryController
LanguageEnglish

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