On 21 Jan 2006 11:51:23 -0800, "Mark Main" wrote:


Am I wrong with my understanding? Is there a better way to adjust the
RPM for the full range of the Monarch 10EE without severe torque
impact?

Bear in mind that when you change pulleys or gear ratios, you
increase available torque when you reduce output speed. A VFD does
not do this. The torque an induction motor can deliver does not
increase when speed is reduced by reducing drive frequency.