Originally Posted by
Dave Rothermel
On the contactors / overloads. I took the overloads off the contactors.
I didn't know how to hook them up. Curious as what you guys did? Do I need to have them in there? Couldn't turn on the spindle with them inline. I to am making a map of the wiring. I have looked at things that I have done years
ago, and don't have a clue. I really like everybody's input. Thanks, Dave
Technically you do not need the O/L's as the VFD performs the overload protection, it does pay to have inline fuses ahead of the contactor, however.
If you couldn't turn on the spindle with them in, are you sure they were not tripped? As they are essentially a direct connection from contactor to motor.
measure input to output with a meter, should be zero ohms.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.