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SIMATIC S5 / STEP 5

S5 CPU 928 BASP LED continues glowing

Thread Starter: srik11   Started: 10/13/2008 12:11 PM   Replies: 4

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  10/13/2008, 12:11 PM
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Dear sir,

Our system is CPU 135U with processor 928. Recently its power supply module 6ES5-955-3LF41 is failed. 24v,15v and 5 volts are failed. We given it to local electronics technician for repair. After repair we  fixed it back. But there is a Stop LED and BASP LED on CPU. We made overall reset. Then it is ok. Again program loaded and kept plant for running . After two days again CPU PLC turned to STOP mode and BASP LED is glowing. Again solved the problem as per above procedure. After two days again it is turned to STOP mode and BASP LED is glowing. How to resolve this problem. Advanced thanks.

Regards
srik
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  10/13/2008, 2:45 PM
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can tou do a screen shot of the i stack with your and b stack to help you . please do this when the cpu goes into stop mode

Regards


Steve

I have a very responsible position here
everytime something goes wrong i'm responsible
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  10/13/2008, 7:36 PM
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Yes, as playerslight suggested, we will need a i-stack info to find the reason for STOP. BASP just means that outputs are disabled, which will be ON whenever PLC goes to stop.

Jomy M Jose
Jacobs Engineering Group Inc.
111 Corning Rd., Suite 200
Cary, NC 27518, USA
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  10/15/2008, 6:39 AM
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The following errors are the istack messages

STP
FE-STP
NEUZU
EINPROZ
OB1GEL
OBWECKA
32KWRAM
URGELOE
STP-VER
ANL-ABB
DB1-FE
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  11/11/2010, 9:34 AM
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Hi,

Would you please tell me how did you fix this problem?

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