Post on 09-Sep-2018
transcript
DRIVES
Soft Starter or AC Variable Frequency Drive?
Download our free white paper
SOFT STARTERS
Applications with low or medium starting torque
Lightly or moderately loaded applications
Limiting current is prime reason for starting method
Reduce mechanical wear and damage to system
Power monitoring
Applications with high starting torque
Single-phase applications on certain drives
Speed control during the run mode
Continuous feedback for critical position control
Holding rotor at zero speed
Application, application, application!What does your application require? When choosing between a soft starter and an AC drive, think about:
What are the load torque requirements?
Is speed control needed during the run mode? Is full speed reverse operation needed?
Are there any power distribution considerations or restrictions?
Copyright © Rockwell Automation, Inc. All Rights Reserved. Publication 150-SP007A-EN-P –July 2016
M3
Short-Circuit Protection Device
Optional IsolationContactor
Soft Starter
M3
Short-Circuit Protection Device
VariableFrequencyDrive
AC/DC/ACConverter