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MICROMASTER 430 FREQUENTLY UNDERVOLTAGE TRIPS

Created by: mariuss at: 6/26/2013 10:29 AM (7 Replies)

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6/26/2013 10:29 AM	Rate (0)
mariuss Posts: 3 Rating: (0)	hello ,i have 10 micromaster frequency inverters and quite freuently i have trips on undervoltage .The problem is that the mains on the plant is not so stable and i whould like to know if there is any parameter to change(delay) the time for trip,in case of very short voltage flouctuations. regards,
mariuss Posts: 3 Rating: (0)
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6/26/2013 10:39 AM	Rate (0)
PISCEAN 2010 Diamond Member Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (878)	Hello, There is no any parameter to set delay or prevent drive from undervoltage triping. BTW how much is the fluctuation on power side & moreover how frequently? Have you provided input line chokes or filters? The line side frequent fluctuations, beyond limits, may have advers effect on the life of drive.

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6/26/2013 10:41 AM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 10/23/2024 Posts: 4620 Rating: (708)	Hi mariuss, Have a look this thread maybe can help you: MM430 AVOID F0003 UNDERVOLTAGE - Siemens Industry Online Support Micromaster430 under voltage - Siemens Industry Online Support ...

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6/26/2013 11:16 AM	Rate (0)
DS SURESH KUMAR Bronze Member Joined: 4/17/2012 Last visit: 8/30/2024 Posts: 474 Rating: (10)	Hi, As per this link discussion get conclude with change the setting in P0210 with low voltage setting ("385V") and the system will working fine My doubt is if we do like this it will lead to permanent drive failure know i think so..

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6/26/2013 11:35 AM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 10/23/2024 Posts: 4620 Rating: (708)	Hi DS SURESH KUMAR, Also for me, perhaps I should try to put a mains choke.

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6/26/2013 12:14 PM	Rate (0)
viralpatel Silver Member Joined: 11/18/2010 Last visit: 8/5/2022 Posts: 523 Rating: (32)	mariuss hello ,i have 10 micromaster frequency inverters and quite freuently i have trips on undervoltage .The problem is that the mains on the plant is not so stable and i whould like to know if there is any parameter to change(delay) the time for trip,in case of very short voltage flouctuations. regards, If palnt power is not stable then better way to stabilize by using stabilizer /UPS etc..otherwise it will degrade Drive performance and it's capacitor bank also.trip and like setting are for only if your have facing problem not frequently. viral patel

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6/26/2013 6:33 PM	Rate (0)
Vithani Platinum Expert Joined: 7/8/2009 Last visit: 8/5/2024 Posts: 1976 Rating: (477)	DS SURESH KUMAR Hi, As per this link discussion get conclude with change the setting in P0210 with low voltage setting ("385V") and the system will working fine My doubt is if we do like this it will lead to permanent drive failure know i think so.. hello mariuss Setting of P210 to low value like 385V will not resolve your problem Your drive will be trip if voltage go below some level - Normally this trip comes when your DC link will go low. If your drive is loaded high then your DC link will go low faster than when low load is there For your problem, you should think other options suggested like flying restart or Input choke - this may help to some extent but Not full because for drive - low voltage means no voltage and how can drive run without giving voltage?? Regards, Devesh
	I dont Like people driving Fast, thats the reason I overtake them ;)
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6/28/2013 10:03 AM	Rate (0)
Ashutosh Kr Bronze Member Joined: 3/15/2011 Last visit: 10/26/2024 Posts: 134 Rating: (9)	Try kinectic buffering feaure ,1240=3,but this will be totally dependent on momemt of inertia of load.Load having high moment of inertia such as fan ,pump can support this. or as per Mr. Vithani you can try auto restart. Regards Ashutosh

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