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840D Ghost Back up

7/6/2009 2:37 PM	Rate (0)
CNC Chennai Experienced Member Joined: 12/5/2006 Last visit: 5/26/2023 Posts: 177 Rating: (2)	Dear All Can anybody Help me to by-pass External Linear Scale in 840D System.

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7/6/2009 3:19 PM	Rate (1)
RAM81 Silver Member Joined: 3/3/2008 Last visit: 4/9/2025 Posts: 333 Rating: (52)	hi if you want to disable the linear scale then try to make DB3X.dbx1.5 as high and DB3X.dbx1.6 low with regards ram

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7/6/2009 4:30 PM	Rate (0)
Gebhardt Karl Platinum Expert Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi >DB3X.dbx1.5 as high and DB3X.dbx1.6 low Yes, now it work with the Motor-Encoder.
	Karl
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This contribution was helpful to 1 thankful Users Lucky123

7/7/2009 9:02 PM	Rate (0)
nulizhang Platinum Expert Joined: 10/17/2007 Last visit: 9/5/2025 Posts: 4436 Rating: (399)	maybe you also should set MD30200 NUM_ENCS from 2 to 1 if you scale defective or disconnected
	If you like my comments please use "Thank" bottom left or Rating Top right
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7/16/2009 5:34 AM	Rate (0)
CNC Chennai Experienced Member Joined: 12/5/2006 Last visit: 5/26/2023 Posts: 177 Rating: (2)	Thanks After Changing the Bit , Whether it is required to change any Pitch compensation . Pl Guide me.

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7/16/2009 5:59 AM	Rate (0)
RAM81 Silver Member Joined: 3/3/2008 Last visit: 4/9/2025 Posts: 333 Rating: (52)	hi normally the laser calibration will be done on the active measuring system, in your case the same must have been done with the scale feedback. so please check the machine data 32700 &32710 and disable if required. regards ram

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7/16/2009 8:27 AM	Rate (0)
phgo Advanced Member Joined: 5/22/2009 Last visit: 5/3/2022 Posts: 40 Rating: (0)	usualy the backlash was set also only for the linear scale check and adjustalso the parameter32450 see this exemple N32450 $MA_BACKLASH[0,AX1]=0 N32450 $MA_BACKLASH[1,AX1]=0.015 the value with [0] for the motor coder is normaly biger of the value with the scale (bracket [1] and you have better result

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