Is there a max for Resource Converters

[Q]

As far as I know there is a limit per order of about one million converted target resources. If you try more, the conVersion will stop at this amount. However you can give more than one order per turn and therefore there is no practical limit. In my current game I convert about 9-10 millions per turn and I just have click several times the resource conVersion button and give the order for about one million.