Topic: AZTEEG/ negative wire from power supply to be grounded?

With an AZTEEG X3 PRO, should the negative wire from the power supply be grounded to the chassis?

2 (edited by carl_m1968 2019-01-29 20:42:57)

Re: AZTEEG/ negative wire from power supply to be grounded?

[email protected] wrote:

With an AZTEEG X3 PRO, should the negative wire from the power supply be grounded to the chassis?

The green wire from the power supply on the AC side should be connected to chassis but the same should be achieved through the screws that mount the supply to the printers frame. The chassis should be at earth ground, not system ground.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

Re: AZTEEG/ negative wire from power supply to be grounded?

Many thanks, that sounds reasonable. 

We were told to "not to ground the board to the chassis", does that make sense to you?

We were also told that splitting the ground plane up (within the X3 PRO) by adding a ground, separate to the line ground, is not a good thing to do.  Do you agree?

4

Re: AZTEEG/ negative wire from power supply to be grounded?

[email protected] wrote:

Many thanks, that sounds reasonable. 

We were told to "not to ground the board to the chassis", does that make sense to you?

We were also told that splitting the ground plane up (within the X3 PRO) by adding a ground, separate to the line ground, is not a good thing to do.  Do you agree?


When dealing with anything powered by AC mains which has metal parts the user can come into contact with those parts should be tied to earth ground which is the usually the green line t hat is connected on the supplies AC side.

The board is powered by DC. It does not and should not be on the same ground reference as the Earth or DC ground. The DC ground is tied to the Earth ground indirectly through a 1K resistor inside the power supply usually so no do not ground the board to the frame except through the standoffs which the board mounts on naturally.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

Re: AZTEEG/ negative wire from power supply to be grounded?

Many thanks.  Let me think about that for a bit.  Valuable info.

6

Re: AZTEEG/ negative wire from power supply to be grounded?

carl_m1968 wrote:
[email protected] wrote:

Many thanks, that sounds reasonable. 

We were told to "not to ground the board to the chassis", does that make sense to you?

We were also told that splitting the ground plane up (within the X3 PRO) by adding a ground, separate to the line ground, is not a good thing to do.  Do you agree?


When dealing with anything powered by AC mains which has metal parts the user can come into contact with those parts should be tied to earth ground which is the usually the green line that is connected on the supplies AC side. This is in case there is a short or other circumstance that gives the AC a path to the metal parts it will by carried to Earth ground and not the user.

The board is powered by DC. It does not and should not be on the same ground reference as the Earth or DC ground. The DC ground is tied to the Earth ground indirectly through a 1K resistor inside the power supply usually so no do not ground the board to the frame except through the standoffs which the board mounts on naturally.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.