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micromaster 440 A0503 r0026=0V

1/11/2023 12:57 PM	Rate (0)
storm_y Posts: 2 Rating: (0)	We have a micromaster 440 drive 5,5KW He has been working for over 10 years. Now, when voltage is applied to it, error A0503 appears. After checking the voltage at the terminals (DC+,DC-), I see 540V, but parameter r0026=0. Attachment SIEM 2.jpg (1300 Downloads)
storm_y Posts: 2 Rating: (0)	Last edited by: storm_y at: 01/11/2023 13:00:13 Last edited by: storm_y at: 01/11/2023 13:28:16 Last edited by: storm_y at: 01/11/2023 13:29:23
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1/12/2023 7:20 AM	Rate (0)
storm_y Posts: 2 Rating: (0)	Put the drive back together to show you... https://youtube.com/shorts/iD657lZovQs?feature=share
storm_y Posts: 2 Rating: (0)	Last edited by: storm_y at: 01/12/2023 07:29:57
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1/15/2023 4:36 AM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	Hello, Control card behind rectifier which measures/senses DC voltage might be faulty (component or fuse on it might have blown) Please check.
PISCEAN 2010 Posts: 8092 Rating: (884)
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5/25/2023 12:05 AM	Rate (0)
mohamed sallem Posts: 20 Rating: (1)	Vérifier les Résistances SMD dans la carte
mohamed sallem Posts: 20 Rating: (1)
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5/25/2023 9:08 AM	Rate (0)
Jen_Moderator Posts: 8171 Rating: (174)	Hello mohamed sallem, thanks for your contribution to the topic Please try to discuss in English language. This is an international community, and we try to focus on one language. This is the translation of your answer: mohamed sallem Check SMD Resistors in board Regards, Jen_Moderator
Jen_Moderator Posts: 8171 Rating: (174)
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6/10/2023 5:44 PM	Rate (0)
mohamed sallem Posts: 20 Rating: (1)	Check SMD Resistors in board
mohamed sallem Posts: 20 Rating: (1)
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