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lost profibus and Mico master 440 continious to run

12/11/2009 4:19 PM	Rate (0)
vincentb Posts: 5 Rating: (0)	Hi This morning I shut off my plc and 2 drives of on my plant loop profibus continue to run!!!!!! It's a problem!!! 844.0 and 2090:0 2040 is 0 could you help me please give me the answer on my email adress vincent.piroton-bilodeau@lonza.com tank
vincentb Posts: 5 Rating: (0)
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12/11/2009 4:28 PM	Rate (1)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/6/2024 Posts: 8768 Rating: (1170)	Dear vincentb, Please change parameter 2040. When it is 0, there is no monitoring. from manual: *Inverter behaviour at "P2040=0"* If monitoring is switched off and the PROFIBUS Master system goes to the status Stop (e.g. S7 CPU), the inverter remains active with the last received target specifications (control word, frequency target value)! Best regards, Wizard

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12/11/2009 4:47 PM	Rate (0)
vincentb Posts: 5 Rating: (0)	tank for your answer wizard , I have an other question about this problem,I spoke with a process operator since few min and he said that maybe 30 pump was running and when we shut off S7-400 just 2 pump stay in run position ...but all mydrive micromaster 440 (110 drives) have the sameting setting 2040 :0!!! why juste 2drive stay in run position ??? tank a lot Vincent
vincentb Posts: 5 Rating: (0)
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12/11/2009 9:29 PM	Rate (0)
Ayman Elotaify Platinum Expert Joined: 5/28/2008 Last visit: 11/6/2024 Posts: 4516 Rating: (839)	Hello, Please check the value in parameter P0700 ( Selection of Command Source). If P0700 = 2, Check also P1000 and tell us the status of the DIN1, DIN2, DIN3,...of the drive. Also are you sure that the drive commands comes from the stopped S7-400? Waiting for your reply. Regards,
	Ayman Elotaify
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12/14/2009 9:23 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/6/2024 Posts: 8768 Rating: (1170)	Dear vincentb, It could be a combination of parameter 2040 and 2041 Here a link to manual: http://support.automation.siemens.com/WW/view/en/11190648 http://support.automation.siemens.com/WW/view/en/6586565 Here are some additional links: http://support.automation.siemens.com/WW/view/en/22533468 http://support.automation.siemens.com/WW/view/en/25339501 http://support.automation.siemens.com/WW/view/en/8894363 Best regards, Wizard

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12/14/2009 4:56 PM	Rate (0)
vincentb Posts: 5 Rating: (0)	Hi my communication is by profibus so I enter the number 6 in the parameter 1000 (CB sur liaison com),parameter 700 is sameting number 6 is the setting of this parameter. tank best regard vincent
vincentb Posts: 5 Rating: (0)
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