Siemens LT Module Repair
The Background
A factory in Belfast contacted us after they were having an issue with their press. The press was a large punching machine which perforated sheet metal on a reel. It had an automated feeder which fed the material into the press in accurate lengths. This feeder was servo controlled using a Siemens 611 drive, motion control card and 1FT6 servo motor. The drive would randomly go into fault when running and would give no indication other than a red light.
Martronic to the rescue!
We suggested that the LT module and control card were removed for servicing back in our workshop. We made the right decision as when it was dismantled we found several issues. The power supply on the control card had bad capacitors causing an unstable 5V rail, and the LT module had cracked solder joints on the power pins which were a ticking time bomb before they got worse and led to arc damage.
Both items were dismantled, fully cleaned, serviced, reflowed and conformally coated. Once finished they looked like new which is testament to the standard Martronic work to.
They were shipped back on an overnight delivery and the machine went straight back into production.
