Alot depends on the individual system, for example some switching power supplies will run on 110vac to 240vac.
Fanuc state ±10% and I have had to fit buck transformers to satisfy this.
Every system requires evaluation, motors, like line-operated transformers are pretty durable and rugged.
The bottom line is that anything over the manufacturers limit has to be assessed and if used over this, is a gamble.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.