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CPU 810DE CCU1 PLC not reset

5/14/2009 11:21 AM	Rate (0)
Controls_Engineer Posts: 60 Rating: (1)	Hi, I am Venki and i have some problem with our grinding machine equipped with CPU 810DE controller. Recently i had a problem of NC and PLC program corrupt due to degradation of back up battery. After replacing the battery then weclear NC and PLC. I have cleared the NC successfully But i am not able to clear PLC. The PSled in PLC side blinking and all other LED's are in ON condition.In NC side only top GREEN led is in ON condition. Kindly give me your inputs to solve this issue. The CPU card details are given below 810DE CCU1 6FC5410-0AY01-0AA0 Software Version 2.4 (For card details pls refer attached pic) Thanks, Venki Attachment CPU 810DE.jpg (459 Downloads)
Controls_Engineer Posts: 60 Rating: (1)
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5/14/2009 1:17 PM	Rate (0)
RAM81 Silver Member Joined: 3/3/2008 Last visit: 4/9/2025 Posts: 333 Rating: (52)	hi veki put the S4 rotart switch in position 3 , press the reset button, wait till the CCU boots the display should be 6. Then from position 3 got 2 and comback to 3 within 5sec approx. then but the switch back to 0 and press reset. now only PR should glow , it means the plc has been cleared and now you can relaod the plc backups with regards Ram

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5/15/2009 10:05 AM	Rate (0)
Controls_Engineer Posts: 60 Rating: (1)	RAM81, Thanks for your reply. I have already tried what ever you mentioned in your mesg. In NC side only +5V and SF led's are on. In PLC side all led's are ON and PF led is blinking. I have also tried to communicate with PLC through SIMATIC Manager V5.3 but the on-line communication is not established. Is there any other way to clear PLC and put back to RUN mode?? Thanks, Venki
Controls_Engineer Posts: 60 Rating: (1)
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5/16/2009 2:31 PM	Rate (0)
Gebhardt Karl Platinum Expert Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi Hi If the programming device is no longer coming to the PLC, the PLC should be with the rotating switch "S4" delete. With the rotary switch is very time critical. Even if the man has often made it prepares problems. Read the document here. Makers "step by step" through. https://www.automation.siemens.com/doconweb/content.asp?item=3141&cd=sinumerik_simodrive_10_2008_e&scope=all Open: --> Start-Up Guide 840D/810D/611D (O.K. you have 810D, but this is the thame procedur) Side 42 --> PLC general reset. Please try it with this Informations. (Perhaps you must make this 3-10 x) After reset, you can transfer the PLC-Programm with Field-PG or so.
	Karl
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