Health Check on Electrical Servo Drives

[grimreaper86]

Dear members
I wonder if I could have an expert advice. I have got to visit a site where 110 odd servo drives some B and R, some Bosch rexroth are installed.

I have been told that they are having problems with the servos and they would like me to perform a thorough health check. I have been told that drives are very old and electronics might required to be updated

Could I request the experts to advise please:
1) what are the things to investigate to evaluate
the performance and life of the electrical
servo drives? A advisory checklist would be
appreciated.
2) Why are the wear and tears in electrical servo
drives over extended use of 25 years?
3) What are the key features/parameters which
could be increased to get more life out of
these drives?

Thank you members

 

[WKTaylor]

Might need to ask these questions in an Electrical engineering thread...

Regards, Wil Taylor

Trust - But Verify!

We believe to be true what we prefer to be true.

For those who believe, no proof is required; for those who cannot believe, no proof is possible.

Unfortunately, in science what You 'believe' is irrelevant – "Orion"

 

[sreid]

At 25 years old I would suspect that the drives and motors are Brush Type. If so, problems are more likely to be with the motors than the drives.

 

[Compositepro]

The first things that are likely to go bad with age in electronics are electrolytic capacitors.