Rob, if it is set for 200V and you apply 220~240V, the secondary voltages will be WAY higher than the machine expects.
If we say the input is nominally 230V then that is 15% higher than the tapping is set for at 200V. This translates to the secondary voltages being AT LEAST 15% higher (there are many other factors that come into play but for the purpose of this discussion this is close enough).
I would say this is your problem for sure.