Built-in PLC Logic in VFDs
Built-in PLC Logic in VFDs allows selected drives to execute…
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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…
How to Select a VFD for Normal Duty and Heavy Duty Applications
Selecting a VFD based only on motor power in kilowatts…
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…
Did Motor Torque Drop After Installing a VFD?
Possible Causes, Diagnosis, and Practical Solutions Short Description After installing…
Motor Overheating with VFDs
Causes, Diagnosis, and Practical Solutions Short Description A motor can…
Output Reactor vs dV/dt Filter vs Sine Wave Filter
Long motor cables can increase voltage reflections, leakage current, insulation…