Things have advanced a little since my last message.
Some manuals have been located and i am waiting their arrival.
I have discovered the following procedure will get life into the control monitor screen:-Wait a few minutes after the screen has given up and gone blank, break power to the monitor,wait a few more minutes then re-connect power to screen. The screen then comes to life and stays good with the Acramatic software active.
The green button is a mystery,sometimes it has initiated startup & sometimes only way to start is to push in the small contactor which green button drives when it chooses. The contactor does self latch.
Relevant to above is that machine appears to have been updated with a TFT screen.
Any thoughts welcome.