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Sinumerik 808D control failure

Created by: Fel1991 at: 3/10/2025 1:37 AM (15 Replies)

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3/10/2025 1:37 AM	Rate (0)
Fel1991 Joined: 8/9/2024 Last visit: 4/14/2025 Posts: 9 Rating: (0)	Hello! I have a problem with my lathe pinacho with Sinumerik 808D, the lubrication light flashes all the time and does not let me do home. I appreciate the help. I remain attentive. Thank you I attach photo Attachment WhatsApp Image 2025-03-09 at 7.32.03 PM.jpeg (333 Downloads)

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3/10/2025 7:51 AM	Rate (0)
Riddersholm Bronze-Expert Joined: 5/24/2016 Last visit: 8/31/2025 Posts: 408 Rating: (61)	Hello. It is very normal that the lubrication cycle is started when powering on. I now they could have a pressure switch that does not send back information that pressure was build. but it is not easy for me to determine without the PLC program. If you want you can share the .pte project and I can have a look. Best Regards Riddersholm

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3/13/2025 9:19 PM	Rate (0)
nulizhang Platinum Expert Joined: 10/17/2007 Last visit: 9/5/2025 Posts: 4436 Rating: (399)	Is it new machine? if yes check your machine manufacturer maintenance manual --it should be telling you how to reset that error such as oil level low or floating sensor dirty or defective Fel1991 Hello! I have a problem with my lathe pinacho with Sinumerik 808D, the lubrication light flashes all the time and does not let me do home. I appreciate the help. I remain attentive. Thank you I attach photo
	If you like my comments please use "Thank" bottom left or Rating Top right
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3/25/2025 10:43 PM	Rate (0)
Fel1991 Joined: 8/9/2024 Last visit: 4/14/2025 Posts: 9 Rating: (0)	¡Hola! Adjunto el enlace al vídeo de la falla. ----- Hello! I've attached the link to the video of the falla. https://youtu.be/ERVpZ791w-M
	Last edited by: Moderator_Lan at: 03/26/2025 07:56:25 Translation added
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3/26/2025 6:14 PM	Rate (0)
Fel1991 Joined: 8/9/2024 Last visit: 4/14/2025 Posts: 9 Rating: (0)	Hello! Attached is the current file pte. Attachment plc_app.zip (338 Downloads)

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3/28/2025 7:23 PM	Rate (0)
Riddersholm Bronze-Expert Joined: 5/24/2016 Last visit: 8/31/2025 Posts: 408 Rating: (61)	Hello. So I had a look. There are 3 things that can start the pump. M20.0 which is a lubrication command send only during first scan (boot up of the controller) M20.1 which is the manual push button on the MCP. And then there is a timer. Now this timer and every time in between is controlled with user MD. I think that the reason is that the User MD is simply set to low. Please have a look in the machine MD - Shift + System - Mach. Data - NC Basis list 14510(24) = Lubrication interval in minutes, I think this might be 0. 14510(25) = Lubrication ON timer when in auto in seconds (Interval minutes has passed), I believe this is also very low or 0 14510(26) = Lubrication pressure check delay in seconds 14510(27) = Lubrication ON timer when starting up the machine in seconds 14510(28) = Lubrication ON timer when pressing the manual lubrication button in seconds. Best Regards Riddersholm

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This contribution was helpful to 1 thankful Users Moderator_Lan

4/7/2025 3:28 PM	Rate (0)
Fel1991 Joined: 8/9/2024 Last visit: 4/14/2025 Posts: 9 Rating: (0)	Hi! Please help me with the PLC Programming Tool by sending it to me in a Zip file. Thank you
	Last edited by: Moderator_Lan at: 04/07/2025 15:43:16 E-Mail address removed, doesn't comply with forum terms.
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4/7/2025 4:25 PM	Rate (0)
Riddersholm Bronze-Expert Joined: 5/24/2016 Last visit: 8/31/2025 Posts: 408 Rating: (61)	Hello. I can't share the PLC programming tool. If you want it you need to contact your local Siemens office and ask for it. But you do not need the Tool box for diagnostic and setting the user MDs, this can be done from the CNC controller. Best Regards Riddersholm

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4/8/2025 4:57 AM	Rate (0)
Fel1991 Joined: 8/9/2024 Last visit: 4/14/2025 Posts: 9 Rating: (0)	Hi! A backup was made of the machine with all the factory files, and I'm still having problems with the lubrication. It turns on and off intermittently by itself, which prevents me from logging in. I'm attaching videos and photos, thank you. Attachment comprimido sinumerik.zip (268 Downloads)

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4/8/2025 8:08 AM	Rate (0)
Riddersholm Bronze-Expert Joined: 5/24/2016 Last visit: 8/31/2025 Posts: 408 Rating: (61)	Hello. I think we might have a miscommunication here. Please find attached a video of what parameters you should check. Best Regards Riddersholm Attachment MD14510.zip (283 Downloads)

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