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MM440 F0070 fault

10/20/2011 8:34 AM	Rate (2)
Deep Bhatt Posts: 241 Rating: (50)	MM 440 showing me a F0070 fault... If I give a on command to drive after 2 sec it trips on F0070 fault and all drive stopped working( Network is down) There are 70 nodes on profibus cable.. I have chacked the profibus cable its ok-All length.. PLC sides Ok... Drive parameter regarding communication is ok.... CB module,profibus connector and cable also i've replaced with new..Still fault is coming.. I,ve removed encoder module--Still fault is coming.. If I disconnect the motor with drve and run it on V/F linear mode...it runs... When I run the drive in local mode it runs... What should be the problem??
Deep Bhatt Posts: 241 Rating: (50)
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This contribution was helpful to 1 thankful Users Nelson89

10/20/2011 8:56 AM	Rate (2)
JensS Posts: 739 Rating: (55)	F0070 “CB setpoint fault” is a watchdog failure. For information pls. see FAQ: What are the possible causes of F0070 on MICROMASTER 4, and how do I avoid them? http://support.automation.siemens.com/WW/view/en/22329309 Pls have also a look into p2014 and p2040
JensS Posts: 739 Rating: (55)
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This contribution was helpful to 1 thankful Users Marcjan

10/20/2011 9:10 AM	Rate (0)
Marcjan Diamond Member Joined: 4/22/2010 Last visit: 3/31/2025 Posts: 5697 Rating: (716)	Hello, Thanks Jens S for the usefull information Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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10/20/2011 9:23 AM	Rate (0)
Deep Bhatt Posts: 241 Rating: (50)	JensS F0070 “CB setpoint fault” is a watchdog failure. For information pls. see FAQ: What are the possible causes of F0070 on MICROMASTER 4, and how do I avoid them? http://support.automation.siemens.com/WW/view/en/22329309 Pls have also a look into p2014 and p2040 p2014 and p2040 has already set to 3000ms... And LED goes to green...
Deep Bhatt Posts: 241 Rating: (50)
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12/22/2016 12:23 PM	Rate (0)
Min_Moderator Posts: 4758 Rating: (122)	New question published by theoulis7 is split to a separate thread with the subject MM440, fault F0070 when reaching max frequency. Best regards Min_Moderator
Min_Moderator Posts: 4758 Rating: (122)
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