Control CNC Services Ltd

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01299 821117

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Complete Control Lockout, XYZ Lathe

Posted on 25th January 2017

Today we looked at an XYZ Lathe with Siemens 828D control. We were called to assist a customer who after making an edit to one of his programs and trying to run it in simulation, suffered a complete control lockout.

This was a strange issue that we certainly hadn't seen before.

XYZ Lathe with Siemens 828D control

The MPF program in question would not delete from the HMI and caused all the soft keys to lock if trying to open, edit or delete.

Field PG

We had to remote into the HMI using X127 port and the field PG and delete the corrupt file, which resolved the issue.

As with all of our visits, a complete system backup was carried out including NC, PLC, HMI, Drives and CF card (.tgz image), copied onto a memory stick and left with the customer. The machine is now back in production - another happy customer!

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