G540 noise and voltage on Pin 6&7

[PleaseHelp]

Just got my G540 2 days ago.

I try the following Setup :

- No DB25 connection .

- Pin 11&12 > 24V DC

- Pin 10&12 EStop

- Charge Pump OFF.

-DB9 To My Motor 3A 4 wire - > 9Neg 8POS Phase A - 7Neg 6 Pos Phase B.
-DB9 a 2.7K resistor to Pin 1&5

The Green light is On ( )

My Motor make a low noise sound .
When I measure DB9 pin 98 I got 0V - but when I measured 7&6 I got 2.2V
I think 2.2 V on 7&6 make that noise .

Any sugestion ????????

[PleaseHelp]

Anybody in southern California , If you know the solution : please call me at 1-323-770-1598.

Thank You

[PleaseHelp]

Orin called and He sugested I Ground my computer, my power supply and my G540 .

I went ouside put a piece of metal to ground and run the wire to my computer chasis , connect with db9 shield and power supply chasis .

the Hum noise from the motor is still there . Measure pin 67 = 2.2v pin 98=0v

[PleaseHelp]

I went to Frys Electronic and purchased a 10000uf capacitor .

I will put it accross my -V and my +V . Hope it would get rid of the motor hum .

I will post the result tomorrow

[PleaseHelp]

I put my new 10000uf across pin 12 and pin 11 .

The hum sound from my step motor is still lound and clear . Pin 6& Pin 7 of my DB9 is still 2.2 V

. Anybody has any ideas ???????

[atxguitarist]

I just live with the hum noise. My machine in running ok when cutting.

[doorknob]

Just curious - how are you measuring the voltage across pins 6 and 7?

Are you using a multimeter set to AC volts?

Do you have access to an oscilloscope?

Is it the same on the DB9 for every axis or just for one axis?

[PleaseHelp]

I use a volt metter , put Neg on -B (pin7) , put Pos on +B pin 6 .
The volt metter show 2.2 V

Yes the motor run , Yes it is working but it is fair to have a silence motor when it is idle specially I payed $295 hard earn money for the G540.

censor ****************************************************

**************** G540's motor make that hum noise when it is idle, he just expect we live with it

[doorknob]

Please clarify - is your meter set to AC volts or DC volts?

Is it the same on the DB9 for every axis or just for one axis?

[PleaseHelp]

My Volmeter is set to DC

It is the same for X Y Z Axis

[doorknob]

It would be good to put an oscilloscope on those pins to see what kind of signal was actually present.

The G540 manufacturer has a good reputation for support. Have you contacted them directly?

[PleaseHelp]

Thank You Doorknob .

I will call Gecko on Tuesday . I am just very frustrating , I wish and willing to pay a little bit more money so I don't have to go through this debug hell .

I am making another trip to get a set of capacitor : 2000uf , 4000uf , 6000uf ,(I already have 10000uf) , 12000uf , 14000uf .

Frys Electronic charge $6 for each piece ( $30 ouch !!! )

Will test , and report back this afternoon.

censor ***************************************************************************