Re: [CAD_CAM_EDM_DRO] 220 Voltage To Feed Machine Motor and CNC Drives

Peter Renolds wrote:

>Hi Dave,
>
>You'll be very happy with the SJ100 - except if you want to decelereate
>the spindle quickly. The braking unit is expensive.
>

Braking resistors are really not that bad, unless you insist on a totally
UL-rated setup. I use ordinary 100 W wirewound Vitreous enamel
resistors that are available on the surplus market. I think the VFD would
burn out before I could get these resistors hot from rapid start/stop
cycles. Nearly all VFDs have the switch transistor for the braking resistor
built in.

Jon