On another note? Could I raise the RPM of the motor to elevate the operating voltage? Could this alleviate the problem? How much? What happens when the frequency deviates from 60Hz?
OK! There is a concensus. Adding Caps to the AC side will raise operating voltage. Adding caps to the DC side of the VFD should /might cushion the voltage variations. What is my next step? Will I have to desolder and solder new caps into an IC board? Are the caps on a 7.5HP VFD large and remote...
An interesting perspective....... Why wouldn't we build capacitance on the AC side. The VFD is a complicated and delicate device. The generator is a brutal POS. If the Voltage could be held closer to constant during the amp rush demands, we might not see the DC Bus drop enough to register a...
I believe it is a Toshiba AC Drive. The VFD is in a Nema Enclosure so the fault is not readily accessible. I believe I have recorded "Low DC Bus Voltage" fault. It stops the VFD and we press a reset button and the machine is restarted. The 110VAC hand grinders start and stop frequently. So the...
I own a Northstar 15KW generator. I am running an HTC 500 (7.5Hp)planetary grinder(240VAC)on a VFD. It runs fine when no other loads are connected. I can have 110VAC angle grinders (2) with Shop vacs running together. As the angle grinders are turned on and off, it sets a fault on the VFD. The...
