Picked 618VL in amazingly good condition at auction but my shop is 220v single phase. I run lathe, mill, drill press, and bandsaw using vfd mostly for motor speed control benefits otherwise would probably have invested in RPC by now. The 618 has a power feed geared motor that runs low rpm. The table x-axis control uses a reversing switch and solenoid driven contactors that reverse 2 legs of the 3ph power to the motor thus reversing the motor direction and thereby the table feed direction. I think I can use the reversing switch as input to the vfd to reverse the motor but have a couple questions to you smart folks in forum land.
1. With a vfd be “happy” reversing a motor constantly?
2. Any recommendations on accel/deceleration ramp settings, I.e. should I make it start and stop “quickly” during each reverse or more gently?
Thx. Dan
1. With a vfd be “happy” reversing a motor constantly?
2. Any recommendations on accel/deceleration ramp settings, I.e. should I make it start and stop “quickly” during each reverse or more gently?
Thx. Dan