Continuous movement of Axis A - DDCSV2.1 - Standalone CNC Motion Controller - Digital Dream Technology support
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Continuous movement of Axis A

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Landlord
Posted at 2019-7-23 07:04:39 | All floors
Sorry for the trouble. I will check the program today.
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Sofa
Posted at 2019-7-23 16:38:51 | All floors
Last edited by ytliu In 2019-7-23 16:39 Editor

Ver:2019-07-23-112 Description:
1. Fixed an error that the file list could not be displayed in the file page without inserting USB stick;
2. Correct the error that the A axis cannot be stopped in the CONT mode in some controllers;(Pending verification)

install(2019-07-23-112).zip

610 KB, Down times: 763

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Bench
Posted at 2019-7-23 16:45:29 | All floors
Thanks for your suggestion. Due to compatibility, your suggestion cannot be adopted in DDCS.I will adopt your Suggestions in the future controller products.
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Floor
Posted at 2019-7-24 07:12:40 | All floors
I tested the HOME operation and found no problems you said.
When HOME is executed, it will accelerate to the HOME speed according to the acceleration set by #45-#48. When the zero signal is detected, it will decelerate to stop according to the acceleration set by #263-#266.
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Posted at 2019-7-24 21:11:10 | All floors
I don't quite understand.
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Posted at 2019-7-24 21:21:45 | All floors
When HOME is executed, it will accelerate to the HOME speed according to the acceleration set by #45-#48. When the zero signal is detected, it will decelerate to stop according to the acceleration set by #263-#266.After the motion stops, the system will retreat at a speed of 50mm/min. When the zero signal disappears, the motion will stop immediately and the mechanical coordinate here will be set to 0.
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Posted at 2019-7-25 06:19:31 | All floors
Please send me the ‘setting’ and ‘uservar’ files in the /mnt/nand1-1 directory.
In the file page, enter /mnt/nand1-1, move the cursor to the 'setting' file, press 'TAB' to copy, then enter the usb stick directory (generally /udisk-sda1/), and press 'SHIFT' to paste.
Copy 'uservar' to usb stick in the same way, then compress the two files into a zip file and upload them to forum.
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Posted at 2019-7-29 07:51:04 | All floors
I checked your configuration parameters, please set #33 to be greater than or equal to 12mm/min, it will solve your problem.

JOG motion is done in the FPGA. Due to the data width limitation of the FPGA internal registers, the filling of motion parameters is subject to rules.
Taking the X-axis as an example, the initial speed register VS=#33*#34/600. Since the VS register cannot be less than 1, the minimum value of #33 = 600 / #34 = 600 / 50 = 12mm / min.

I recommend that the number of pulses per mm be no less than 320, which will avoid many problems due to improper parameter settings.
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Posted at 2019-7-31 10:40:58 | All floors
Last edited by ytliu In 2019-7-31 11:19 Editor

How do you connect zero signal? X-- LIMIT or X ++ LIMIT or X ZERO?
If you use X++ LIMIT as the zero signal, you need to set #116("X-axis zero signal source select") to 2, set #404("Limited siganl active of X++") to 1, Set #412("Effective electric level of X++") as the case may be.

Regarding the motion parameters, if you can't increase the number of pulses per mm, I suggest: #33 is set to 50; lower manual mode UACC and DACC, such as 10; increase HOME speed, such as 1500;



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