User Manual

Rockwell Automation Publication 20B-UM002G-EN-P - July 2014 109
Appendix C
Application Notes
Adjustable Voltage
Operation
In Adjustable Voltage control mode, the output voltage is controlled
independently from the output frequency. The voltage and frequency
components have independent references and acceleration/deceleration rates.
Single-phase and three-phase output is possible with this feature. The Adjustable
Voltage mode is designed to operate on electro-magnetic loads - not typical AC
motors.
Typical applications include:
• Linear Motors
• Vibration Welding
• Vibratory conveying
• Electromagnetic Stirring
• Induction Heating (400 Hz or lower)
• Resistive Loads (dryers)
• Power Supplies
Topic Page Topic Page
Adjustable Voltage Operation 109 Position Indexer/Speed Profiler 124
External Brake Resistor 111 Power Loss Ride Through 133
Hand-Off-Auto (HOA) 111 Process PID 134
Lifting/Torque Proving 111 Reverse Speed Limit 136
Limit Switches for Digital Inputs 118 Skip Frequency 137
Minimum Speed 119 Sleep Wake Mode 138
Motor Control Technology 120 Start At PowerUp 140
Motor DC Injection 121 Stop Mode 140
Motor Overload 122 Stop Dwell Time 145
Motor Overload Memory Retention Per 2005 NEC 123 Voltage Tolerance 146
Overspeed 123