Hey Guys, virgin poster here. We have a Mazak VCN 510C with a Renishaw OMP40/OMI. It has been a few years since the Renishaw probe was last used. New batteries were installed. Here is the problem: the machine will not do a tool change if the tool is defined as a "touch sensor". Sometimes it will change it from the atc to the spindle but not visa versa. It goes into position to change tools but just sits there and times out with a 363 - hyraulic pump time over. Here's the kicker, if the probe is not defined as a "touch sensor" it will change back and forth from tool changer to spindle just fine. For some reason it seems like the machine does not like "touch sensors". Could there be a parameter issue here? FYI- Renishaw system was installed at the factory so we have no software with it. Thanks in advance.