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802C Baseline reference point apporch problem

Created by: DigitalMG at: 1/4/2011 3:42 PM (13 Replies)

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1/4/2011 3:42 PM	Rate (0)
DigitalMG Advanced Member Joined: 4/18/2010 Last visit: 3/7/2025 Posts: 65 Rating: (0)	Hi, After a little configuration in 802C Baseline factory default PLC and setting required MD parameters, the controller works properly but it can't traverse to reference point automatically after power on. Here is what I am doing: power on CNC > Ref point > press correct traverse direction (z+) Now the desired axis traverse to reference cam while I'm pressing the +z key, If I leave pressing the button, the axis stops. If I keep pressing, the axis reaches the ref cam, but it doesn't sync and an error fires up! It's the same for X axis. Whereas after touching the correct direction for a while, the axis should traverse automatically toward the reference cam. All the synchronization should be done automatically! Setting REFP_NC_START_LOCK (MD20700) to ZERO or ONE doesn't change it. But setting MD20700=0, and in MDA entering G74 X0 Z0 then cycle start, the axis will go the reference point properly and the synchronization will be done successfully. Any Idea how to fix ref point approach problem? Thanks

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1/4/2011 6:52 PM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hello… Could you cross check Z axis parameter with X axis MD 11300: JOG_INC_MODE_LEVELTRIGGRD (INC/REF in Jog mode) MD 34000: REPF_CAM_ACTIVE MD 34010: REFP_CAM_DIR_IS_MINUS (approach reference cam in minusdirection) MD 34020: REFP_VELO_SEARCH_CAM (reference cam approachvelocity) MD 34030: REFP_MAX_CAM_DIST (maximum distance from reference cam) MD 34070: REFP_VELO_POS (reference point move-in velocity) MD 34080: REFP_MOVE_DIST (distance from reference point to zero marker) MD 34090: REFP_MOVE_DIST_CORR (reference point move, additive) MD 34100: REFP_SET_POS (reference point value) Check it out.....it should reference.... Regards, Ekalavya
Ekalavya Posts: 2964 Rating: (484)
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1/12/2011 8:20 AM	Rate (0)
DigitalMG Advanced Member Joined: 4/18/2010 Last visit: 3/7/2025 Posts: 65 Rating: (0)	Dear Ekalavya, Thanks for your reply, I have crossed check the mentioned items. The first item is not exsisted in 802c but the reset was properly configured. The problem is still remained. no axis could be refrenced by going to ref mode and pressing traverse key. if I leave pressing traverse key, the axis stop moving toward the cam. only G74 X0 Z0 is working properly for referecing the axis. Do you think there is a problem with PLC ? Is there any thing remained to be checked ? Thanks

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1/12/2011 11:04 AM	Rate (0)
ŠΜS Silver Member Joined: 6/7/2010 Last visit: 7/9/2024 Posts: 571 Rating: (37)	DigitalMG Dear Ekalavya, Thanks for your reply, I have crossed check the mentioned items. The first item is not exsisted in 802c but the reset was properly configured. The problem is still remained. no axis could be refrenced by going to ref mode and pressing traverse key. if I leave pressing traverse key, the axis stop moving toward the cam. only G74 X0 Z0 is working properly for referecing the axis. Do you think there is a problem with PLC ? Is there any thing remained to be checked ? Thanks Hi DigitalMD, I 802C the above said parameter is avaliable. Pls removeif any filter setting of parameter is done & check once. For your reference i have attached that (802C) machine data. 11300 JOG_INC_MODE_LEVELTRIGGRD 1: Jog mode for JOG-INC and reference point approachJOG-INC:When the traversing key is pressed in the required direction (e.g. +), theaxis begins to traverse the set increment. If the key is released before theincrement has been completely the traversed, the movement is interrupted andthe axis stops. If the same key is pressed again, the axis completes theremaining distance-to-go until this is 0. 0: Continuous operation for JOG-INC and reference point approachJOG-INC:When the traversing key is pressed (first rising edge) the axis travels thewhole set increment. If the same key is pressed again (second rising edge)before the axis has completed traversing the increment, the movement isaborted, i.e. not complete Attachment machine data.pdf (413 Downloads)
	Regards, ŠΜS
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1/12/2011 4:03 PM	Rate (0)
DigitalMG Advanced Member Joined: 4/18/2010 Last visit: 3/7/2025 Posts: 65 Rating: (0)	Dear Muthamizh Thanks for your reply MD11300 is not related to 802C, you could even check with "Description of Functions 08/2003 Edition" Manual for 802C available on DoconWeb That parameter belongs to 810D/840D series. Also there is no filter for Machine Data on 802C, protection level is Manufacture. Thanks & Best Regards

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This contribution was helpful to 1 thankful Users ŠΜS

1/12/2011 6:42 PM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hi.... DigitalMG is right 11300 parameter is not available in 802C.... You need to see the really the PLC logic part why it is not getting referenced.... Check it out and Update. Regards, Ekalavya
Ekalavya Posts: 2964 Rating: (484)
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1/14/2011 8:00 AM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hi... Have you wired the Z axis reference CAM input properly could you check the same.... Also could you check the parameter 14512[17] bit 0/1/2 I am attaching you the Description of PLC Subroutine Library for SINUMERIK 802S/C base line Check it out.... Attachment PLC_appl_Program.pdf (432 Downloads)
Ekalavya Posts: 2964 Rating: (484)
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1/14/2011 8:20 AM	Rate (0)
DigitalMG Advanced Member Joined: 4/18/2010 Last visit: 3/7/2025 Posts: 65 Rating: (0)	Hi, The wire is ok for both Z and X axis, I could refrence it using G74 X0 Z0 and it works properly So there is no problem with wire or MD14512[17] bits. for your information MD14512[17] bits are all zero. Only after power on and putting into refrence mode, pressing correct traverse key does not send them toward cam automatically. but by G74 it works very nice.

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2/4/2011 3:56 PM	Rate (0)
DigitalMG Advanced Member Joined: 4/18/2010 Last visit: 3/7/2025 Posts: 65 Rating: (0)	Hi, My Sinumerik 802C controller software version is 3.0.1.11 which is phased out a decade. As 802C hardware is changed since 2003, I cannot update the software to newer version. I couldn't find 802S/C Toolbox V.03.01.12 to transfer Cycles to CNC. The machine is in Lathe mode, so I could edit factory default PLC using Programming Tool PLC 802 V3.1.3.6 which is available on new generation of 802C Toolbox CD. Could this problem initiated by using newer version of Programming Tool PLC 802 than the version released in the old Toolbox? Or could have no cycles be the source of the problem? Also I have some strange problems. E.g. define L4.0 and L4.1 as output local variables in a Subroutine and then let them both be ON using = (STL) L4.0 will be ON but L4.1 won't. There is nowhere else in the subroutine which I used them. Any Idea? Does anyone has the old 802S/C Toolbox V.03.01.12? Thanks
	Last edited by: DigitalMG at: 2/4/2011 3:59 PM
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2/5/2011 9:15 AM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hello.... Yes your right the productis phased out....but support should be there..... Fastest way is to get in touch with your nearest Siemens Regional Office..for the TOOL BOX Regarding L4.0 & L4.1 Could you Cross Check with your PLC MDs....you can see this information in the tool box CD... Regards, Ekalavya.
Ekalavya Posts: 2964 Rating: (484)
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