Rockwell Automation Publication 2198-UM001D-EN-P - May 2014 223
Appendix D
Induction Motor Support
This appendix provides induction motor feature descriptions supported by
Kinetix 5500 servo drives.
Induction Motor Control
Methods
The Kinetix 5500 servo drives support two open-loop frequency control
methods. These are the choices:
•Basic Volts/Hertz - This method is used in single or multi-motor
asynchronous motor applications.
• Sensorless Vector with Slip Compensation - This method is used for
most constant torque applications. Provides excellent starting,
acceleration, and running torque.
To configure your induction motor in the Logix Designer application, refer to
Configure Induction Motor Axis Properties
on page 127.
Open-loop frequency control is suitable in applications such as conveyors,
pumps, and fans. These are the features:
• Start Boost, Run Boost, and Auto Boost
• Electronic motor thermal overload protection per NEC/NEMA Class 10
requirements
• Single skip frequency, in which the drive does not operate
• All three-phase induction motors suitable for variable speed drives (VFD)
operation are supported
Table 92 - Induction Motor Specifications
Topic Page
Induction Motor Control Methods 223
Skip Frequency 226
Attribute Value
Output frequency, max 400 Hz
Pole pairs, max 50
Motor cable length, max 50 m (164 ft)
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