Lots counting errors at using the DDCSV with MPG

ytliu · Posted at 2018-2-27 06:31:49

Last edited by ytliu In 2018-2-27 08:52 Editor

Hi DAMIGO!
When turn the handwheel, if the screen coordinates only a small amount of change, the reason is generally handwheel A / B signal missing all the way caused。
Can judge the reason of the problem like this:
Disconnect handwheel B signal from controller, then turn handwheel，If the screen coordinates are still a slight change, the hand wheel A phase signal is connected to the controller B phase signal port，Then turn the handwheel, if the screen coordinates is still a slight variation, indicating the hand wheel problem, if the screen coordinates no change, indicating the controller problem.
If it is a controller fault, you can contact the dealer to replace, you can also locate and repair the fault,The figure is a schematic diagram of the handwheel coded signal.
If FPGA_WHA, FPGA_WHB signal waveforms are correct, then I'm sorry, you can only contact the vendor for replacement.

DAMIGO · Posted at 2018-2-27 02:16:26

Hi ytliu,

I tried your parameter settings for the #448. It does not change much or stabilize the counting. I understand that one mode is moving the motor so long i turn the wheel,
the other mode should exactly move the motor as the given value as turn by the mpg. I tried fast moving I tried slow moving, nothing changes or move the motor precise.
The digital display shows a not continous incrementing like described in the first posting.

So I measured the signals with an oscilloscope, and they are fine, no noise, no spikes, no glitches. Sadly I can not upload any pictures here from the measurement.

Kind regards
Daniel

ytliu · Posted at 2018-2-24 18:33:54

Hello,
Parameter #448 is added in the newer version, the new version can be downloaded from http://www.ddcnc.com/forum.php?m ... &extra=page%3D1 post

Will_D · Posted at 2018-2-24 06:56:12

@ytliu: I could not find parameter #448 in either the version 1 or version 2 user manual!

@arco: My MPG settings are as follows:
#428 = 1, #429 = 0, #430 = 1 (standard MPG), #431 = 0.001 (totally different to what the manual says!!), #432 = 0, #434 = 0 (not in manual)

What are your settings and does your MPG have a standard output as opposed to UART?

Hope this helps

Will

ytliu · Posted at 2018-2-8 12:03:35

Under the precise control mode of mpg(#448=0), after the handwheel stops shaking, the corresponding axis still moves until all the pulses in handwheel buffer are sent;Otherwise, once the handwheel stops shaking, the corresponding axis immediately decelerates stop.

ytliu · Posted at 2018-2-8 11:39:35

Set # 448 (MPG control mode) parameter to 0 (open) to solve this problem

Lots counting errors at using the DDCSV with MPG

View forum before

TEL

0755-87654321