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New from Old / Re: The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
« Last post by awemawson on July 10, 2025, 09:47:01 AM »Perhaps the summer heat has got to my brain but I've decided to resume testing to try and get this CNC lathe back on it's feet.
A full re-load of known good software still gives me several very odd error reports from the PLC inbuilt to the Sinumerik CNC control so I decided to step back a bit and do some basic hardware testing:
The PLC has 96 inputs (24 v Active 0 V Inactive) and 32 outputs of 0v or 24v. Up until now actually testing these is a physical pain - they are presented at the top of a rack with five cables terminated in 37 pin Sub D connectors - all tightly lashed together.
However a nifty 37 way Sub D break out board turned up on eBay with male and female connectors and a terminal strip allowing me far better access.
A full re-load of known good software still gives me several very odd error reports from the PLC inbuilt to the Sinumerik CNC control so I decided to step back a bit and do some basic hardware testing:
The PLC has 96 inputs (24 v Active 0 V Inactive) and 32 outputs of 0v or 24v. Up until now actually testing these is a physical pain - they are presented at the top of a rack with five cables terminated in 37 pin Sub D connectors - all tightly lashed together.
However a nifty 37 way Sub D break out board turned up on eBay with male and female connectors and a terminal strip allowing me far better access.