The solenoid you are referring to will only position the cylinder in two positions:
1) fully extended
2) fully retracted
A servo valve can position the same cylinder in many positions between fully extended and fully retracted.
David Baird
Sr Controls Designer
EET degree.
www.afctool.com
A risk assessment must be done and the results of that will tell you the risk category. The risk category determines which type of safety relay is required.
David Baird
Sr Controls Designer
EET degree.
www.afctool.com
Sounds like you should maybe barcode label or RFID each item and scan in-out of the different operations which would automatically log time/date etc.
David Baird
Sr Controls Designer
EET degree.
www.afctool.com
Would force measurement such as http://www.futek.com/files/pdf/ApplicationDrawings/102.pdf be of any benefit on your application?
David Baird
Sr Controls Designer
EET degree.
www.afctool.com
If I were the end user, I would want to see them. Having said that I've been away from the process industry too long (in machine design last 15 years) to know what they are presently doing.
David Baird
Sr Controls Designer
EET degree.
www.afctool.com
Take a look at Siemens Motor Starter Protector/Circuit Breaker Combo for Group Motor installations in the panel. You can individually padlock these in the off position right at the starter.
https://eb.automation.siemens.com/mall/en/WW/Catalog/Products/10047876...
Don't know for sure on the power distibution products but due to the relative new EN ISO 13849-1 (PL, Performance Level)and EN 62061 (SIL, Safety Integrity Level)standards, some of todays controls have documented MTBF (Mean time between failures during normal operation), MTTFd (Mean time to...
Have you looked at Exposed Run Cable? Cables that are listed ITC-ER or PLTC-ER are acceptable for use in hazardous locations as defined by NEC 725 and NEC 727. The ER stands for Exposed Run and indicates these cables may be run outside of cable tray or conduit as long as they are mechanically...
OSHA's philosiphy on safe guarding equipment and/or presses is spelled out in:
http://search.usa.gov/search?affiliate=usdoloshapublicwebsite&query=Safeguarding+Equipment&x=25&y=10
If you review the PDF document you will discover that OSHA recognizes the valuable contributions of national...
Talk to Beswick Engineering and or Clippard to see if this will work.
David Baird
Sr Controls Designer
EET degree.
www.afctool.comhttp://files.engineering.com/getfile.aspx?folder=b1ec374e-e962-4f28-8c33-47fdcdf52ccf&file=Fittings_for_Ceramic_to_flexible_tube_connection-Model.pdf
Use a Dual Process Meter
http://www.redlion.net/aboutus/news/news2004/newdualinputpaxmeterwithmathcapabilities.html
David Baird
Sr Controls Designer
EET degree.
Journeyman Electrician.
We have done Automated Welding applications and are not that far away from you. Visit our website:
www.afctool.com
David Baird
Sr Controls Designer
EET degree.
Journeyman Electrician.
For what its worth:
From Anixter Glossary "Wire and Cable Technical Information Handbook"
http://www.anixter.com/AXECOM/US.NSF/TECHNOLOGY/TheWireandCableTechnicalInformationHandbook_WIRECABLE?OpenDocument&Division=DivTab5
David Baird
Sr Controls Designer
EET degree.
Journeyman Electrician.
Here is a quick reference:
David Baird
Sr Controls Designer
EET degree.
Journeyman Electrician.http://files.engineering.com/getfile.aspx?folder=9de48a53-88bf-4c9c-83f9-62ac8059630a&file=HazardousLocationsPoster.pdf
