Loadcell + Stepper

[janno0718]

Help naman po. May loadcell po kasi kame saka stepper sa proto namin. eh kapag u umiikot na po yung stepper. Na didistort na po yung output ng loadcell. Ano po kaya problema? saka solution?

[insomartin]

based sa PM MO SAKIN SA YAHOO MESSENGER... (don't do that again please)
ayaw mo mag lagay nang separate supply kasi pangit.

ok... then gawin mo is do your measurement when the stepper motor is OFF.
or add ka nang noise filters mo sa load cell and proper solid grounding.

[rdpzycho]

typical conducted noise emanating from motors. try watching TV and start your power drill, since walang measure para bawasan 'yung conducted noise, magugulo 'yung image sa TV. same case in your project.

[janno0718]

based sa PM MO SAKIN SA YAHOO MESSENGER... (don't do that again please)
ayaw mo mag lagay nang separate supply kasi pangit.

ok... then gawin mo is do your measurement when the stepper motor is OFF.
or add ka nang noise filters mo sa load cell and proper solid grounding.

Pano po yung noise filters saka proper solid grounding.

[janno0718]

Pano po yung noise filters saka proper solid grounding.

Pa help po. Di ko pa rin po pagawa kung pano.

Pano po ba i iisolate yung power souce ng Loadcell?

Kailangan po kasi pag ikot, saka ko kukunin yung measurement after 1 minute.

Bali ang device po namin ay.
Mag seset ng time, Tapos iikot dun sa na set na time. After 1 minute kailangan imeasure yung current weight. Eh di ko po mameasure ng tama kasi na didistort yung signal ng loadcell.\

Pa help namn po

[insomartin]

since pwede ka naman na mag post nang picture. picture nang makina mo. at the same time schematic diagram at connection details mo. kung wala kang mabibigay wala din naman magkaka interest na tulungan ka.

[motion55]

Pano po ba i iisolate yung power souce ng Loadcell?

Since I assume ang output loadcell after amplification goes to the Arduino's A/D converter input, wala kang choice but to connect the same ground to both (with proper routing of course).

However, you can separate the power source ng stepper. Power the stepper motor and its driver from a totally separate power supply from the Arduino and Loadcell. Connect and route the stepper control signals from the Arduino to the stepper motor driver through optocouplers.

Sabi mo nga walang problem kung Loadcell at Arduino lang.

[janno0718]

Since I assume ang output loadcell after amplification goes to the Arduino's A/D converter input, wala kang choice but to connect the same ground to both (with proper routing of course).

However, you can separate the power source ng stepper. Power the stepper motor and its driver from a totally separate power supply from the Arduino and Loadcell. Connect and route the stepper control signals from the Arduino to the stepper motor driver through optocouplers.

Wala na po bang ibang choice kesa sa separate power. Kasi po dalawa na po ang adaptor na nakabit sa device namin. Yung isa GSM module. Kailangan niya ng mataas na current kaya hiniwalay namin.