Built-in PLC Logic in VFDs
Built-in PLC Logic in VFDs allows selected drives to execute…
Category VFD
Read MoreBuilt-in PLC Logic in VFDs
Why Does a Motor Draw High Current at Low Speed?
Reducing motor speed does not always reduce motor current. A…
VFD Flying Start and Catch-on-the-Fly
How a VFD Safely Restarts a Motor That Is Already…
Motor and Cable Insulation Resistance Testing
A practical guide to testing motor and cable insulation resistance…
Static or Rotating Auto-Tuning?
A Practical Guide to Accurate VFD Motor Identification Correct motor…
How to Select a VFD for Normal Duty and Heavy Duty Applications
Selecting a VFD based only on motor power in kilowatts…
VFD Derating Due to Temperature, Altitude, and Switching Frequency
The rated power shown on a Variable Frequency Drive does…
Practical Short-Circuit Current Calculation
A Practical Guide for Calculations at Transformer Terminals and Feeder…
Motor Starting Methods: How to Select the Right Solution
A practical technical guide to the main motor starting methods,…
Why Does a VFD Trip on Ground Fault?
A VFD Ground Fault trip indicates an abnormal current path…