Re: Looking for a new spindle
Originally Posted by
dazp1976
Well. It may be slightly different kettle of fish (I'm in u.k.) but my servo drive on single phase is 1.8kw. Rated for a 30A breaker, can peak at 56A!.
Your servo will be rated at 1.8kw for continuous duty, however will be able to peak at much higher than that. Hence the high peak.
Servos are usually designed to have short peaks. They can't sustain these loads for long periods as they would overheat.
Peak load is often seen for short bursts during acceleration.
Spindle motors used with VFD are usually rated for a continuous power which is not expected to be exceeded.
Spindle are expected to see more consistent / continuous loads.
VFDs can be programmed with maximum currents.
Any decent quality servo drive can also be programmed with maximum currents and to not exceed this or to error out if current draw exceeds this.
7xCNC.com - CNC info for the minilathe (7x10, 7x12, 7x14, 7x16)