Power supplies voltage! What Is Wrong?

[onsatmex5]

Here is the link to the power supply's that I purchased.... http://www.tracopower.com/products/top200.pdf they are single output +/- 24vdc 8.3 amp. The one's I purchased are called TOP-200-124

They do not support nor need Kelvin (Sense) connections.

I am doing something wrong I can't seem to get the proper voltage that I need. Or are the amps the wrong type do I need amps that "do" have to have the (Sense) connections?

Steve (mixedgas) here on the forum told me this is what the voltage should be....


Measurements done with all green wires connected but amps not connected:

A to B with Red Meter Lead on point A and Black Meter Lead on Point B should measure at least +24 Volts

B to C with Red Meter Lead on point B and Black Meter Lead on point C should measure at least -24 volts

A to C with Red Meter Lead on point A and Black Meter Lead on point C should measure at least +48 volts.7

I hooked them up exactly as Steve (mixedgas) suggested and it just will not work correctly....

I also posted the Cambridge setup that I need for the single.. duel axis galvo amp that I am using.


Any Idea's on what the issue could be?

Thanks for any help

[LaNeK779]

so how much voltage are you getting?
i don't see anything wrong with what you have posted

[onsatmex5]

so how much voltage are you getting?
i don't see anything wrong with what you have posted

Ok I took some photos of what is happening...If you look close you can see exactly where the leads are and what I am getting for voltage...is this correct?

And am I even checking the voltage the correct way? Sorry I am just learning and I really don't know what I am doing....lol

I know there has to be + and - voltage you will see the +/- voltage on the meter and how I am testing it...I am not sure I am doing it correct..!

Thanks for the help

[DZ]

That all looks correct to me, the 2 green wires on the connector are DC Common or Ground and the red wire is +24V and the black wire is -24V with respect to ground. The black meter lead is your reference point, if you put your reference point on -24V and put the red meter lead on ground you would see that ground is +24V over your reference point. Likewise, if you put the black meter lead (reference point) on +24V and the red meter lead on -24V your meter would show that you are -48V below the reference point. It can get very confusing, from what I see in the pics you have a perfectly operating 48V split supply.

[steve-o]

Looks like that Traco will supply 4.2A per rail at +24V. How much current are your galvos asking for?
Why do you say that you're not getting the 'proper voltage'? 23.93V is close enough to 24V. Only 0.07V low.

[onsatmex5]

I thought I should check with the experts first to make sure I was wiring things up correctly before I connected anything
I think the power supplies are each rated at 8.3 amps each @ 24 volts. I am using the 6215h galvos with the The MicroMax 673XX Dual Axis Servo Driver, the power the galvos require according to Cambridge is, per amp 8.2 amps @ 24 volts.

Thank you all for your help I think I can now start to wire everything up an soon as I get DZ's ILDA Breakout Board (3rd Generation) that I ordered

Without this forum I would be totally lost, all your knowledge is "much appreciated" I hope someday I can give something back to the community and help others