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CEC (sag/angularity error)

Created by: alexmac_uk at: 2/28/2011 1:56 PM (3 Replies)

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2/28/2011 1:56 PM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	Hi, Ive fitted a new spindle onto one of our 5 axis cnc machines, when i came input compensation data for axis x and y i wrote it into the file and enabled cec enable MD setting but nothing was happening, ive tried nck reset and power off and on. Any ideas why? there are some data blocks missing in plc aswell, db38,db69 i think, im sure these have something to do with cec data maybe?
alexmac_uk Posts: 118 Rating: (1)
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2/28/2011 3:03 PM	Rate (0)
Ekalavya Posts: 2964 Rating: (485)	Hello... Check this PDF may be useful to you.... Regards, Ekalavya Attachment Beam Sag Compenasation in 810D_840D.pdf (843 Downloads)
Ekalavya Posts: 2964 Rating: (485)
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This contribution was helpful to 1 thankful Users tomas94

3/4/2011 4:26 AM	Rate (0)
CraigSimpson Posts: 159 Rating: (1)	Here is something I wrote for my own notes after successfully applying CEC to machines - The CEC table has to be enabled in the DRIVE MD of both axes it uses and has to be switched on in PARAMETERS, MISC. Metric comp must be applied with machine in Metric mode Enable CEC’s in axes and tables in PARAMETERS, MISC.Enable metric or imperial in MD32711. (1) – metric. Reset//, set MD to active. Example CEC tableand description as below – METRIC CHANDATA(1) $AN_CEC[0,0]=0.0008 $AN_CEC[0,1]=0.0002 $AN_CEC[0,2]=-0.0005 $AN_CEC[0,3]=-0.0021 $AN_CEC[0,4]=-0.0039 $AN_CEC[0,5]=-0.0045 $AN_CEC[0,6]=-0.0051 $AN_CEC[0,7]=-0.0055 $AN_CEC[0,8]=-0.0066 $AN_CEC[0,9]=-0.0078 $AN_CEC[0,10]=-0.009 $AN_CEC_INPUT_AXIS[0]=(AX1) $AN_CEC_OUTPUT_AXIS[0]=(AX1) $AN_CEC_STEP[0]=50 $AN_CEC_MIN[0]=-250 $AN_CEC_MAX[0]=250 $AN_CEC_DIRECTION[0]=1 $AN_CEC_MULT_BY_TABLE[0]=0 $AN_CEC_IS_MODULO[0]=0 The firstnumber in the square bracketed columis the table designation – in this case Table 0. The secondnumber in the square bracketed columnis the number of the compensation point on the INPUT axis. (The max number of points has to be decided in Drive MD.)The value after this is the amount of movement applied to the OUTPUT axis at this point. "CEC_INPUT_AXIS" is theINPUT axis on table 0 and "CEC_OUTPUT_AXIS" is the OUTPUT axis on table 0. (In this example both are the same axis so linear comp would be applied - this is an alternative to ballscrew error comp!) "CEC_STEP" is the spacing size between the points on the INPUT axis."CEC_MIN" and "CEC_MAX" are the start and end points of the INPUT axis."CEC_DIRECTION" is the direction in which the comp is applied. I hope this helps you in some way? Thanks, Craig.
CraigSimpson Posts: 159 Rating: (1)
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This contribution was helpful to 4 thankful Users tomas94 Ekalavya Luke B SimonB

6/27/2014 8:31 PM	Rate (0)
Narrator1 Posts: 176 Rating: (1)	New question split intodocumentation about CEC fonction. With best regards, Narrator1
Narrator1 Posts: 176 Rating: (1)
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CEC (sag/angularity error)

Created by: alexmac_uk at: 2/28/2011 1:56 PM (3 Replies)

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