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F0005 & A0503 showing

Created by: zigzagminded at: 5/18/2017 12:43 PM (6 Replies)

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5/18/2017 12:43 PM	Rate (0)
zigzagminded Posts: 3 Rating: (0)	Dear Expert, In ourt MICROMASTER 440 0.75 KW vfd showing two alarm(F0004 & A0503) continuously. We cannot reset with power shut off. always showing this two fault & alarm in display. Any good suggestion please? Attachment Alarm A0503_ UnderVoltage Limit2.jpg (372 Downloads)
zigzagminded Posts: 3 Rating: (0)	Last edited by: zigzagminded at: 5/18/2017 12:45:57 PM
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5/18/2017 10:27 PM	Rate (0)
mindware Platinum Member Joined: 3/30/2011 Last visit: 7/19/2025 Posts: 739 Rating: (258)	Hello, F004 is inverter overtemperature.... do you try manual suggestions??? Best Regards Attachment f004.JPG (366 Downloads)
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5/21/2017 4:13 AM	Rate (0)
zigzagminded Posts: 3 Rating: (0)	Thank you. But what about to reset A0503 alarm?
zigzagminded Posts: 3 Rating: (0)
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5/21/2017 7:25 AM	Rate (0)
Vithani Platinum Expert Joined: 7/8/2009 Last visit: 6/7/2025 Posts: 1977 Rating: (479)	Have you checked temperature readings in r0037? and how much DC voltage showing in r0026? If values are abnormal, Please check power related data as well (r206/r208). Check DC voltage physically and share results. If its what i suspect, your IO board may be faulty, recently someone faced similar Regards, Devesh
	I dont Like people driving Fast, thats the reason I overtake them ;)
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This contribution was helpful to 1 thankful Users mindware

2/15/2020 5:10 AM	Rate (0)
anujkrsingh Posts: 2 Rating: (0)	My drive Microaster 440 also showing A0503, and f0005. tried restarting the drive. please tell me how to check the parameters
anujkrsingh Posts: 2 Rating: (0)
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2/15/2020 5:13 AM	Rate (0)
anujkrsingh Posts: 2 Rating: (0)	hello sir, similar fault with my micromaster 75 kw motor. please tell me what you did as I am also facing same problem. my application is 40 bar HP compressor. 100 hp motor.
anujkrsingh Posts: 2 Rating: (0)	Last edited by: anujkrsingh at: 02/15/2020 05:14:26
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2/15/2020 5:47 AM	Rate (0)
PISCEAN 2010 Diamond Member Joined: 4/23/2010 Last visit: 11/23/2024 Posts: 8092 Rating: (882)	Hello, Please download & refer MICROMASTER 420/430/440 manual. Have you checked the points suggested in earlier posts? Check those & revert if you need any aditional information.
	Last edited by: Jen_Moderator at: 02/17/2020 11:50:33 Optimized link.
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