How to match regulated power supply

Carving machine for power supply voltage of 198 ~ 242 v, as you can in regional power supply voltage is not very stable, should configure a ac regulated power supply. Ac regulated power supply of constant voltage transformer, servo, optional UPS, but not with ordinary household appliances with the relay type of regulated power supply, otherwise it will cause carving, crash and reset. As you can in areas of frequent power cuts, use the UPS is more ideal. 500 w UPS can on computer carving machine and power supply at the same time, and can guarantee the computer shutdown properly when the power is cut off.