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Machine does not stop when pressing cycle stop

3/11/2010 4:15 PM	Rate (0)
elguapo Posts: 4 Rating: (0)	We have a Sinumerik 840D control on a 5 axis water jet machine. When pressing cycle stop the axis in motion continue to coast to a stop. This should not happen. I hope someone has an answer to this. Thank you!
elguapo Posts: 4 Rating: (0)	Last edited by: elguapo at: 3/11/2010 9:28 PM
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3/12/2010 12:56 PM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hi... Is this a new machine are working machine. All the axis are coasting are specific axis? Check the Infeed regenerative module (I/R) switching on sequence and how it is handle. bye / rpk89
Ekalavya Posts: 2964 Rating: (484)
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3/12/2010 3:45 PM	Rate (0)
elguapo Posts: 4 Rating: (0)	The machine is about 3 years old and it is a gantry type with a 840D control and simodrive 611.This effect is more pronounced when B and C rotating axis are in motion along with any of the linear axis. I did a search for I/R in all of our manuals to try to understand. Would you please explain further. What settings should I be looking at? thanks, elguapo
elguapo Posts: 4 Rating: (0)
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3/12/2010 4:16 PM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Do you get any error message in the Screen when axis coasts? Regards, rpk89
Ekalavya Posts: 2964 Rating: (484)
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3/12/2010 4:24 PM	Rate (0)
elguapo Posts: 4 Rating: (0)	No error messages.
elguapo Posts: 4 Rating: (0)
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3/13/2010 5:41 AM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hello.... Have you checked the switching sequence of the I/R module (48,63,64) and how it ishandled? also check this following things... 1) Check up the tightness on the I/R module enables X121 connector : 63,64 X161 connector: 48,112,9 X171 connector: NS1,NS2 X181 connector: 1u1,2u1,1v1,2v1,1w1,2w1 2) check the incoming supply tightness and all the dc link bus bar tighness in off conditon. 3) check the pulse enable tighness on the control card( 663,9) 4) check the axis coasting power cable and the feed back cable motor end as well as on the drive end 5)Check the DC link voltage when axis is coasting. Check this out..... bye / rpk89
Ekalavya Posts: 2964 Rating: (484)	Last edited by: rpk89 at: 3/16/2010 6:02 AM
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3/15/2010 7:44 PM	Rate (0)
Pee Ell Sea Posts: 672 Rating: (57)	Hi, If the machine has always been like this then I would say that it just has bad acc and dec rates. Especialy with the reference to it being worse with rotary axes. Alternatively is it protecting the component by preventing a a hole being created if the axis stops immediately but the water jet doesn't Does it stop quickly when you press E stop ?
Pee Ell Sea Posts: 672 Rating: (57)
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