Main motor and Denester not starting when pressing start button on screen

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The discussion revolves around troubleshooting issues with the main motor and Denester not starting when the start button is pressed, despite no error messages appearing on the screen. Participants suggest checking input and output signals from the drive and recommend verifying if contactors or relays are being energized. Clarifications about the Denester's function and the type of machine involved are raised, with a link provided for additional context on denesting processes. Safety precautions are emphasized when using tools to check electrical components. The conversation highlights the need for systematic checks to identify the root cause of the starting issue.
ismat143
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Hello everyone,

Please let me know when we press start button on screen for Motor and Den-ester in auto and manual mode why it is not starting?, which points i have to check for input and output signals from drive.

And there is no error on screen.

Please refer both electrical drawings.

2.jpg
3.jpg
4.jpg


Thanks.
 
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What is a Den-ester? What kind of machine is this? Who is the manufacturer?
 

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ismat143 said:
which points i have to check
Have you used your ear to determine if the contactor (or other relays) is being energized? Sure you want to stick your meter-probe/fingers near the phases?
 
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