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Configuring the gear spindle speeds for 840Dsl

Created by: spec-cnc at: 3/19/2013 5:14 PM (29 Replies)

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3/19/2013 5:14 PM	Rate (0)
spec-cnc Regular Member Joined: 12/19/2011 Last visit: 9/4/2024 Posts: 36 Rating: (0)	Hello! I have a cnc 840Dsl NCU710.2. Installed on the machine spindle gearbox ( motor - gear - sensor - gear - load). Each gearbox switches to two positions. Spindle has 4 ranges. The Problem is that the sensor is mounted on the intermediate shaft of the gearbox, and the reduction of the sensor and the motor or spindle, varies depending on the specified range.In the parameters of the CNC is the parameters for a single measuring gear (with a constant gear ratio).Engine without the sensor, install the sensor in a different place is not possible.Please help solve this problem. Attachment 111.pdf (441 Downloads)
	Last edited by: spec-cnc at: 3/20/2013 9:12 AM Last edited by: spec-cnc at: 3/19/2013 7:00 PM
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3/20/2013 6:59 AM	Rate (0)
MBA Gold Member Joined: 3/19/2006 Last visit: 4/29/2024 Posts: 594 Rating: (78)	What do you mean sensor ? encoder or proximity switch

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3/20/2013 8:31 AM	Rate (0)
spec-cnc Regular Member Joined: 12/19/2011 Last visit: 9/4/2024 Posts: 36 Rating: (0)	I have installed an encoder

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3/21/2013 6:45 PM	Rate (0)
MBA Gold Member Joined: 3/19/2006 Last visit: 4/29/2024 Posts: 594 Rating: (78)	spec-cnc I have installed an encoder for each Gear, there are parameters for translation Motor -> Spindle and Motor -> Encoder Gear = INDEX of MD MD31050 $MA_DRIVE_AX_RATION_DENOM MD31060 $MA_DRIVE_AX_RATION_NUMERA MD31070 $MA_DRIVE_ENC_RATION_DENOM MD31080 $MA_DRIVE_ENC_RATION_NUMERA But you need a proximity switch mounted at spindel for Orientation at Toolchange

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3/22/2013 9:54 AM	Rate (0)
Pee El Sea Gold Member Joined: 1/19/2008 Last visit: 10/2/2024 Posts: 992 Rating: (64)	Hi, Can you write different values into the encoder gearing parameter and activate them each time there is a gear change ? Are you using a third party induction motor for your spindle motor ? Pee

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3/22/2013 10:28 AM	Rate (0)
spec-cnc Regular Member Joined: 12/19/2011 Last visit: 9/4/2024 Posts: 36 Rating: (0)	Pee El Sea Hi, Can you write different values into the encoder gearing parameter and activate them each time there is a gear change ? Are you using a third party induction motor for your spindle motor ? Pee Hi! Thank you for your response. 1. Spindle mounted DC motor with tachometer. Motor and drive spindle of the machine has not changed. Replaced, motors and feed drive. 2. Please tell me how I can change from the PLC to the measuring gear for the encoder. (What signals in the DB allows) Thank you again!

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3/22/2013 10:50 AM	Rate (0)
spec-cnc Regular Member Joined: 12/19/2011 Last visit: 9/4/2024 Posts: 36 Rating: (0)	MBA spec-cnc I have installed an encoder for each Gear, there are parameters for translation Motor -> Spindle and Motor -> Encoder Gear = INDEX of MD MD31050 $MA_DRIVE_AX_RATION_DENOM MD31060 $MA_DRIVE_AX_RATION_NUMERA MD31070 $MA_DRIVE_ENC_RATION_DENOM MD31080 $MA_DRIVE_ENC_RATION_NUMERA But you need a proximity switch mounted at spindel for Orientation at Toolchange Hi! Thank you for your response. 1. I set the parameters for each range of spindle MD31050 $ MA_DRIVE_AX_RATION_DENOM MD31060 $ MA_DRIVE_AX_RATION_NOMERA I can not set the parameters MD31070 $ MA_DRIVE_ENC_RATION_DENOM MD31080 $ MA_DRIVE_ENC_RATION_NOMERA because they set a constant reduction. I have two different reduction to four bands of spindle 2. I do not have spindle orientation and no switch on the spindle. Thank you again!... Attachment 222.pdf (420 Downloads)

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3/22/2013 12:41 PM	Rate (0)
MBA Gold Member Joined: 3/19/2006 Last visit: 4/29/2024 Posts: 594 Rating: (78)	sorry was my fault the MD31070 / MD31080 are only for first and second encoder so you can test configure 2 Encoders for the Spindel the input for the Encoder are the same MD 30220[0] = MD 30220[1] MD 30230[0] = MD 30230[1] if this works then you can switch on Gear change between Encoder 1 and 2

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3/22/2013 1:35 PM	Rate (0)
Pee El Sea Gold Member Joined: 1/19/2008 Last visit: 10/2/2024 Posts: 992 Rating: (64)	Hi, MBA's solution looks good. The parameters MD31070 $ MA_DRIVE_ENC_RATION_DENOM MD31080 $ MA_DRIVE_ENC_RATION_NOMERA Are only active after power on so there is no point in writing a new ratio to them. Pee

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This contribution was helpful to 1 thankful Users spec-cnc

3/22/2013 4:23 PM	Rate (0)
spec-cnc Regular Member Joined: 12/19/2011 Last visit: 9/4/2024 Posts: 36 Rating: (0)	Hi! Yes, the idea of the parameters for the two sensors is great (have not tried). Few details about the machine. I have a Vertical lathe. I have 2 encoder for the spindle. One set in the gearbox, and the other set in faceplate (spindle). Spindle diameter of 6 meters. Second encoder powered by a battery and transmits the signal through a wireless device.Second encoder does not always work, but only when you need spindle positioning. In this case a battery and change the system of measurement spindle. The first encoder is needed for working not positioning Thank you! I welcome your ideas. I do not know what to do.

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