Digital Dream Technology support

Title: Home and Limits [Print This Page]

Author: Plexi47 Time: 2018-10-22 17:33
Title: Home and Limits
Hello everybody,
just get my DCCS and the first question:
I use inductive switches for home and limits as follows:
Home-x (--) Home-y (--) Home-z (++)
Limit-x (++) Limit-y(++)
Would like the home(s) acting also as limit
How should I make the settings in DCCS ?
Thanks Mauro

Author: ytliu Time: 2018-10-22 20:28
If you want to use the proximity switch for the limit and also for the HOME, you first need to connect the proximity switch signal to the corresponding limit port, and then set the corresponding parameter in #116-#119, for example, the X axis. The proximity switch is connected to LIMITX+, and the #116 parameter(X-axis zero signal source select) needs to be set to 1 (X++limit signal). When the HOME operation is performed, the X axis will move in the positive direction to find the HOME signal.

Author: Plexi47 Time: 2018-10-22 21:14
Hi ytlu,
let's see if I've understood:
The 3 Home switches are at position X --  Y -- Z ++
I have to set #116 at 2
               #117 at 2
               #118 at 1
so when Homing X and Y will go in negative direction and Z in positive.
Is that correct ?
and what about #64  #67  ?

Author: ytliu Time: 2018-10-23 06:21

Plexi47 Posted at 2018-10-22 21:14
Hi ytlu,
let's see if I've understood:
The 3 Home switches are at position X -- Y -- Z ++

Your understanding is correct. When #116-#119 is equal to 0, the direction of HOME is determined by #64-#67.

Author: Plexi47 Time: 2018-11-16 13:53
OK thanks ytliu, homing is ok,
now I have a problem with hard limits.
in MPG operation , the hard limits that act also as home (X- Y- Z+) are recognized , therefore the jogging stops when lthose limits are reached.
That does not work for the limits that are at X+ Y+, tha jogging continues also whrn limits are acting.
I think to have set the params correctly:
#50 continue H
#51 enable
#400-401 enable
#404-406 enable
#408-415 low

Any guess ?
thanks
Mauro

Author: ytliu Time: 2018-11-17 06:28
Please set the #51 parameter to disable.

Author: Plexi47 Time: 2018-11-18 02:24
Please set the #51 parameter to disable.

Done, still the same, does not work

Author: Plexi47 Time: 2018-11-22 02:19
Apologies,
my mistake, I swapped cables.
Now it's ok
Sorry

Author: Lindo Time: 2018-11-24 13:23
I have a DDCS v2.1

With backlash settings the X Y Z moves care corect, but the backlash is displayed with the move on the LCD.
Example move x 10 mm Backlash setting .32
Moves 10 mm but displays 10.32 mm
Any ideas to fix problem

Author: Lindo Time: 2018-11-26 14:35
Any clues on fixing the display that includes the backlash setting.
As I repeat, the moves X Y Z are correct but if setting back for example .3 mm
then a move of for example X10 mm displays X 10.3 mm.
This cannot be correct and am I the only person to have this error.?? I don´t think so.
Can one of your DDNC engineers contact me please with a solution immediately.
I recently purchased this DDCS 2.1, I have not signed off receipt of
delivery via AliExpress, as it seems I will have no alternative but to send the unit back, and
inform AliExpress to refuse advertising this product.
contact direct
bechetboat@gmail.com

Thnaks

Author: ytliu Time: 2018-11-26 21:02
I have already learned your question from the dealer. As you have described, the software currently has problems in the display of the backlash. Due to my lack of ability, I have not thought of an effective solution. Sorry, if you think this defect is unacceptable, you can contact the dealer to return it.

Author: Lindo Time: 2018-12-12 13:22

ytliu Posted at 2018-11-26 21:02
I have already learned your question from the dealer. As you have described, the software currently ...

Hello ytliu.

Do you work for Digital Dream.
Have you spoken to the engineers. ?
I believe there is a new version 3 of the CNC controller, does this have the same
internal problems.

Returning something that is faulty is an easy solution, but it does not a give
customer satisfaction and does not solve the problem and the cost of
returning an item back to China is very expensive.
This problem which is well known should of been advertised before I bought the controller, I possibly would not have bought.
I truly believe there is a case for legal action.
So lets not do the easy thing and return this controller, do what is normal
fix the problem.
It would not be legal to sell a new car with the manufacturer knowing of problems, so what is the difference between buying a car and a controller.

John
Spain

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