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Created by: JohnS57 at: 2/12/2011 10:55 AM (10 Replies)

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2/12/2011 10:55 AM	Rate (0)
JohnS57 Posts: 6 Rating: (0)	I am anxious to knowwhere I can find the schematics for the Seimans control.Nobody seems to have them, even Van Dorn. The machine is a Van Doran D MAg, mfg 9/89, model # 230RS20FVVHT270, Seiman's Controller. We bought the machine used, got it installed, had it working. We came in the next morning, turned it on, and the message was tfhe operating panel not communicating with the cpu. We have 2 red lights that are on the cpu.. The cpu is showing green red red lights. We have tested the cable, all fuses, cleaned and inspected all circuit boards including the operator panel, checked voltage on the power supply (good), even replaced the battery, have tried 09 restart and 08 restart but with operator panel not communicating with the cpu that wont work. Have reset the cpu several tries, no luck still one green 2 redlights. The interfacebox is showing all red lights. Any guidance would be so appreciated.. We have no technicians in our area and we need to get this machine working again. Thank you, john
JohnS57 Posts: 6 Rating: (0)
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2/13/2011 1:50 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 11/12/2024 Posts: 3027 Rating: (1057)	Hello JohnS57 while I can't help you with the schematics of your machine (best place to ask is the manufacturer of the machine should he still exist), I can at least point to https://support.automation.siemens.comwhere you can search for (and hopefully find)the manuals for your S5 gear (CPU, OP's etc.). These will at least give you for example the information about the CPU's LED status, CPU start up behaviour, how to diagnose it etc. etc. for the Siemens relevant parts of your system. I hope this helps, pelase let us know what you find out and should you have more question come back here to ask (and please provide us with the Siemens relevant part numbers, CPU type, ISTACK infoetc.. The more details you can give us about your control system and problem, the better).
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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2/14/2011 8:08 PM	Rate (0)
JohnS57 Posts: 6 Rating: (0)	Hello Fritz Thank you. I have been looking for the manuals cant' find them.. The parts are S5 PS, CPU 943 115u,( one interface)the interfaceis #6ES5252 and the temperature control board (Barber Colman) #6ES5244.. We are thinking it may be the temp copntrol board.. but not sure.. Looking for something, a manual, error diag to test it. Will keep looking on this site also. john
JohnS57 Posts: 6 Rating: (0)
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2/15/2011 12:31 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 11/12/2024 Posts: 3027 Rating: (1057)	Hello JohnS57 whiel your part number is not complete (the last few digits are missing), there are at least afew manuals available for the the IP252 and IP244 at the link below: http://support.automation.siemens.com/WW/view/en/10805137/133300 I hope this helps
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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2/15/2011 9:55 AM	Rate (0)
Azteke0110 Posts: 376 Rating: (57)	Hello JohnS57, I think you use the CPU943 with the order number 6ES5 943-7UB11. The manual SIMATIC S5, S5-115U, Programmable Controller for following CPU types finds you here: http://support.automation.siemens.com/WW/view/en/1085937 CPU types: CPU 941-7UB11CPU 942-7UB11CPU 943-7UB11 and CPU 943-7UB21CPU 944-7UB11 and CPU 944-7UB21 As an attachment I send you the following manual as pdf-file. S5-115U_OperationList_6ES5997-7LA21.pdf Operations List for the CPU 941/942/943 and 944. Question. Do you have the complete order number for your hardware IP252 and IP242? Do you have new information about your problem? Best regards Gucci Attachment S5-115U_OperationList_6ES5997-7LA21.pdf (467 Downloads)
Azteke0110 Posts: 376 Rating: (57)
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2/15/2011 12:02 PM	Rate (0)
JohnS57 Posts: 6 Rating: (0)	Hello, thank you so much. I will have check the parts again for the last bit of numbers to find the correct manual..But I do think this will help..Will post an update.. john
JohnS57 Posts: 6 Rating: (0)
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2/15/2011 12:06 PM	Rate (0)
JohnS57 Posts: 6 Rating: (0)	Hi Gucci,, Thanks very much..I am going to have to get the complete part numbers.. But now I think i have the schematics, which noone I have spoken with have had. I will post again with an update about the problem..Now, with the manuals I may be able to figure out what the problem is.. John
JohnS57 Posts: 6 Rating: (0)	Last edited by: JohnS57 at: 2/15/2011 12:08 PM
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2/15/2011 11:30 PM	Rate (0)
JohnS57 Posts: 6 Rating: (0)	Hi, The error message I get says the operator panel is not communicating with the cpu..,What does that mean? I can try all kinds of diagnostic textingbut it isnt going to let me because itdoesn't know I am asking it to do something. Where do you suggest I start? I have searched for an error diagnostic with that message but I havent been able to find anything yet.. Still need to get the missing part numbers.. Will be at my shop in a few hours to work on this again. John
JohnS57 Posts: 6 Rating: (0)
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2/17/2011 2:22 AM	Rate (0)
JohnS57 Posts: 6 Rating: (0)	This is what my IT guy says. " .the system is not happywhen it powers on and I thinkthere is a device that gets tested on boot that is the issue. I watched it power up and the cards go through the sequence. The CPU 115 starts and is happy, then the Process Controller 252starts and is happy for a second then goes into fault. The CPU115 card oversees that others cardsand it reports to the CP395 display. It is not reporting so the display shows a communications error. Yet I can see the 115 CPU is working and just acting like a upset family member who wants its siblingto say the right thing then does not talk to the rest of the family. So far here is what I think what happened. They had it running (booted)and the AC voltage was too high. Something that uses ACmaybeheat or AC related got burned out. The system was still measuring the heat that nigh or was past the post test of the program, but would of not been able to run a cycle if they had tried. Since they never got that far, it seemed to them it was working. In the AM after things cooled down, the boot of the systemwas now seeing therewas a hazard condition and goes in to programmed fault.If I had a schematic of the Van Dorn wiring I could track down what items connect to the AC outside of the controller's power supply. An example could be the terminal couple(s). Many use a configuration with a Wheatstone bridgewhere a external voltage is applied.(see http://www.sensorland.com/HowPage017.html mid page for more info). It is also possible that the system looks at the voltage drop on heating elements and motor windings as a pre test to the boot cycle. The other that can happen are items that are measuring devices see thevalue measuredas mid range. It therewas an open, the system see the rail voltage (to one extreme) so itperceives an unacceptable measurement.Based on the observation I have already made, thisline maybe worth further investigation and explains why it booted the night before. Does anyone have any ideas I could pass on to him? Thanks, john
JohnS57 Posts: 6 Rating: (0)
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2/21/2011 11:18 AM	Rate (0)
Azteke0110 Posts: 376 Rating: (57)	Hello JohnS57, I think, it is not simply to solvethis problemover the way forum. It would be better if a SIMATIC S5 specialist is with the customer and to solve the problem. Has this S5-plant configuration already worked? If yes, what was changed (hardware, software) in this S5 plant configuration? Which information shows the ISTACK? Perhaps the CPU943 missing function blocks? I do not know it. Good luck and best regards Gucci
Azteke0110 Posts: 376 Rating: (57)
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