Today is...
Sunday, June 24, 2018
Welcome to, the global online
community of automation professionals.
Featured Video...
Featured Video
EtherCAT with CTC’s master lets your multivendor network play well together...
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive
Rexroth VT5041 Card Problem
Rexroth hydraulic regulation problem

Hi guys,

we have an issue with press machine. Hydraulic part of machine is created by pump with ind. motor, proportional valve and controlled by rexroth card. Regulation is in closed loop and deviation between "sollwert" and "istwert" is during process in tolerance.

The problem is with motor - pump system and shaking during regulation.

We changed motor, pump, changed Rexroth hydraulic card and setted up, prop. valve, feedback cable and sensors but without success.
When the proportional valve is changed by manual valve without feedback, shaking is smoothed.

Is here anybody who can help me??

Thank you