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micromaster 440 A0503 r0026=0V

1/11/2023 12:57 PM	Rate (0)
storm_y Joined: 1/11/2023 Last visit: 1/13/2023 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 (1125 Downloads)
	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 Joined: 1/11/2023 Last visit: 1/13/2023 Posts: 2 Rating: (0)	Put the drive back together to show you... https://youtube.com/shorts/iD657lZovQs?feature=share
	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 Diamond Member Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (878)	Hello, Control card behind rectifier which measures/senses DC voltage might be faulty (component or fuse on it might have blown) Please check.

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5/25/2023 12:05 AM	Rate (0)
mohamed sallem Joined: 4/12/2023 Last visit: 3/9/2024 Posts: 20 Rating: (1)	Vérifier les Résistances SMD dans la carte

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5/25/2023 9:08 AM	Rate (0)
Jen_Moderator Diamond Member Joined: 6/19/2017 Last visit: 9/6/2024 Posts: 8175 Rating: (172)	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

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6/10/2023 5:44 PM	Rate (0)
mohamed sallem Joined: 4/12/2023 Last visit: 3/9/2024 Posts: 20 Rating: (1)	Check SMD Resistors in board

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