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System 3 clamp check alarm Please help ?

Created by: Shottie_gp at: 8/3/2011 1:01 PM (7 Replies)

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8/3/2011 1:01 PM	Rate (0)
Shottie_gp Posts: 5 Rating: (0)	Hi Guys . Ive recently got hold ofa cnc lathe with a sinumerik system 3 control on it. Now the axis x or z wont move ? The Alarm error i get is "111 clamp check". If i leave the machine over night and swith on then it seems to be fine for a while . Once ive referenced the machine the first time then i can move the axis via the jog function but as soon as i want to reference the machine again it stops . What will cause this problem and how do i go about fixing it ? If i press reset the alarm dissapears from the screen but as soon as i try move one of the axis it just comes back . Any help would be greatly appreciated ! Thanks in advance.
Shottie_gp Posts: 5 Rating: (0)
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8/3/2011 5:08 PM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hello.... Looks like you need to check your PLC logic and debug. Regards, Prakash
Ekalavya Posts: 2964 Rating: (484)
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8/3/2011 5:31 PM	Rate (0)
Pee El Sea Gold Member Joined: 1/19/2008 Last visit: 10/2/2024 Posts: 992 Rating: (64)	Hi, The translations on the old controls were never very good. I think the text is actually 'clamping check' Looks like when your drives warm up they have too much drift and the axis is not pulling into position quickly enough or the axis is not responding quickly enough. It is also possible the analog out from the control is not functioning correctly but it is more likely to be the servo drive. Error 111 is for the second axis which will be the Z. Check the following error and take out any drift. Pee

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8/4/2011 8:20 AM	Rate (0)
Shottie_gp Posts: 5 Rating: (0)	Thanks to all the replies . Im not sure how to debug or check the drives etc . Looks like ill have to get someone here to have look . Thanks again .
Shottie_gp Posts: 5 Rating: (0)
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8/5/2011 11:08 AM	Rate (0)
Shottie_gp Posts: 5 Rating: (0)	Hi Guys. So i was looking at the panel at the back of the machine . I reset all the breakers and checked all the contactors . Now in the panel is a "box" some of the wiring plugs into . It also has the backup battery on it . I see there are 2 reset buttons .... 1: This one is close to the battery and has a fault monitoring switch above it with the fault outputvoltage light above that . 2: This one is on the opposite side of the box and has a restart switch above it and a run/stop type toggle switch and ared and green led above that . My question is could i press these reset buttons and try the machine again ? Would i lose any data in the control ? Do i needto write down some settings before i do this ? Please guys any help would be appreciated. Since im in South Africa it seems difficult to get someone here who knows what they talking aboutand if you can find someone the costs are astranomical . Thanks.
Shottie_gp Posts: 5 Rating: (0)
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8/5/2011 1:38 PM	Rate (0)
Pee El Sea Gold Member Joined: 1/19/2008 Last visit: 10/2/2024 Posts: 992 Rating: (64)	Hi, Sorry but resetting the plc (thats the bit you have described) will have no effect on the fault you have told us about. Pee

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8/8/2011 9:08 AM	Rate (0)
Shottie_gp Posts: 5 Rating: (0)	Thanks Pee It seems as if the machine thinks that the clamps are not releasing . The machine doesnt have clamps on the x or z axis . Regards
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8/22/2011 11:33 AM	Rate (0)
Shottie_gp Posts: 5 Rating: (0)	Hi Guys Just some feedback .... Seems one of the drives was not getting decent power supply. There was a loose wire on one of the transformers supplying power to the drives . All is sorted and now im ready to start cutting ! Thanks again for the replies .
Shottie_gp Posts: 5 Rating: (0)
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This contribution was helpful to 2 thankful Users Ekalavya 1600nx

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