Mr E: to verify isolation, I suggest two things: look at the drawings--assumng you have them, and measure with an ohmmeter, just to be extra sure (and be sure all power is off, first). You should see infinite resistance. If you don't--find out why--where is that current flowing? But also be sure nothing changes state when you turn power on (such as a relay) which chnages the isolation situation.
At the Design News webinar on June 27, learn all about aluminum extrusion: designing the right shape so it costs the least, is simplest to manufacture, and best fits the application's structural requirements.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.