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Allen-Bradley powerflex 700 Reference Manual

Allen-Bradley powerflex 700
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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 700 Specifications

General IconGeneral
SeriesPowerFlex 700
CategoryAC Drive
Input Voltage200-240V AC, 380-480V AC, 500-600V AC
EnclosureType 1
Control MethodSensorless Vector
CommunicationEtherNet/IP, ControlNet, DeviceNet, PROFIBUS DP, Modbus

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