Siemens ER Module bench test

[Bwana Don]

Does anyone know where I can send a Siemens ER Module out to be tested?

The machine (VMC-760 corca 1993) is getting a couple of non repeating faults. Spindle drive fault comes on and then goes off, the X drive axis fault intermittently shows up also. Nothing consistant they come and go.

Thanks

[Bwana Don]

Let me pose another question. Has anyone retrofitted a newer CNC control to an old machine? Where do I start looking for this information? Any recomendations for a company?

The machine is rock solid albeit a little slow. I hate to pour a ton of money into her or worse scrap it out because the electronics are acting up.

Machine; VMC-760
Year; 1993
Control Heidenhein TNC 2500B

Thanks.

[gridley51]

I can`t help with where to send it as I am in the UK but have you asked Siemens?
Is it a 6SC-611 drive that the ER unit is from? They are quite reliable unless you lose a phase while it is powered up.The early ones destroyed themselves when that happened.
I think the early ones are obsolete as ISTR Siemens saying they couldn`t get one of the original components and the replacements would not stand the 11Kva flashover test they give them.Be careful if you`re messing about with it as the dc link voltage is 660 volts.
For a retrofit if the machine is worth it I would use a Siemens 802.

[kongzai]

Originally Posted by Bwana Don Does anyone know where I can send a Siemens ER Module out to be tested? The machine (VMC-760 corca 1993) is getting a couple of non repeating faults. Spindle drive fault comes on and then goes off, the X drive axis fault intermittently shows up also. Nothing consistant they come and go. Thanks

try doing it yourself. when you see spindle drive fault , error code should appear on the 7-segment display on the spindle drive, so open the door and check the error code number.
for the x-axis drive, swap the drive with y-axis, as they are the same. then see whether the dive fault alarm occur on X or Y.

[Bwana Don]

We had a service guy out to look at the machine. He swapped the X and Y axis and it didn't make any difference. The randomness of the faults suggests it's getting a bad signal from somewhere. He suggested maybe the ER Module, so my boss told me to pull it and send it out for testing.

I ended up sending it out to ERD in North Carolina.
ERD Industrial Electronic Repair 99% in-house repair - 2 YEAR WARRANTY

[gdwood3rd]

Siemens Industry Inc
329 Circleview Drive North
Hurst, Tx 76054