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Error F085 in micromaster 440

6/30/2025 6:02 AM	Rate (0)
Shebi87 Bronze Member Joined: 10/22/2011 Last visit: 8/28/2025 Posts: 308 Rating: (1)	Hello, There are 2 dives MM440 installed, communicating with S7-300 via profibus. Problem is that both the drives are showing alarm F085. I have tried by disconnecting all digital inputs but the error is still there. I can view only limited parameters as P0003 is set to 0 can anyone help mwe what is the reason?

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6/30/2025 1:30 PM	Rate (1)
Tractor Gold Expert Joined: 3/27/2008 Last visit: 9/3/2025 Posts: 1212 Rating: (148)	Check Parameters P701 to P708. Ensure none of the above are set to 29. Tractor
	Tractor
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7/1/2025 9:38 AM	Rate (0)
Shebi87 Bronze Member Joined: 10/22/2011 Last visit: 8/28/2025 Posts: 308 Rating: (1)	I checked and found p704 was set to 29. Now i set it to 0 and error F085 is gone. One other problem is that drive is still not running and LED on profibus card is blinking on MM440. Can anyone help please

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7/2/2025 11:24 AM	Rate (0)
Tractor Gold Expert Joined: 3/27/2008 Last visit: 9/3/2025 Posts: 1212 Rating: (148)	See, link for the Manual. https://support.industry.siemens.com/cs/de/en/view/6586565 Led indications Red, Orange, Green, flash or steady which do you have? Tractor
	Last edited by: Moderator_Lan at: 07/02/2025 12:37:24 link optimized Tractor
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