PARTS NEEDED....

[ChipKing]

Looking at the wiring diagram it looks like I am needing 110v to 83 v transformer and a rectifier. Any suggestions on sources?? Thanks, Jeff

[cncsnw]

I can provide one for $465 plus shipping.

That includes the transformer with 120VAC primary and 83VAC and 24VAC secondaries, plus the rectifier and capacitor assembly.

- Marc

(marc at cncsnw dot com)

[Johns tool room]

I gotta ask, I have 3 transformers in my 1991 V2XT control panel to choose from to power the servo motors. The manual says that one of them takes in 210 and puts out 130 and 24 volts. I am thinking it is the round one ( called Drive power supply 1)

since in the manual that one was also powering the servos. I just don't see where this things puts out 24 volts?

I also have these two





which would you use to power up the servos? They all take in 220 so If I wanna run 3 axis, one 40 in LB servo for the knee, A and B rotary axis these transformers should suffice?

All help appreciated. Thanks

[Al_The_Man]

Depending on what they put out as secondaries, the one in the bottom Pic looks like the largest VA?
As for the 130/24v, it appears that the toroidal in the top pic has 2 secondaries?
Looks around 750va?
The advantage with Toroidal's is they can be modified fairly easily.
Al.

[Johns tool room]

So you placing your bet on teh torroidal, I guess that Means I will take it apart and look for what seems like the multiple secondaries. Its got 120 and 90 going into it. You think that will suffice for 3 29inlb servos, 1 40inlb servo and in teh far future 2 rotary axis's.

Depending on what they put out as secondaries, the one in the bottom Pic looks like the largest VA?
As for the 130/24v, it appears that the toroidal in the top pic has 2 secondaries?
Looks around 750va?
The advantage with Toroidal's is they can be modified fairly easily.
Al.

[Al_The_Man]

You shouldn't need to take it apart, just trace the various winding ends, see where they go and measure them, or reverse engineer the end result they are connected to?
You may just get away with .75-1Kva.
If you are using existing servo's, what was the supply source originally, why not source them from this?
Al.

[Johns tool room]

I just mean pulling it out of that enclosure. This was originally only running 3 axis' 29 inlb's each. You know the servos.

[Al_The_Man]

If you add 2 rotary axis in the future, you could always add another supply, but in the mean time, monitor the present transformer temperature, this will give you some idea as to the present servo demands?
The De-rating factor takes in to consideration the fact that ALL servo's are not at continuous torque rating at any one time.
Al.

[cncsnw]

You can probably use the entire transformer / rectifier / capacitor assembly that was used in the original control. As previously noted, if it was adequate to run the three motors before, it will still be so; and if needed you can expand later if you exceed its capacity.

Just make sure that the DC voltage coming out of it is within spec for the All-in-one unit: no more than 120VDC after the rectifier and capacitor. That means no more than about 85VAC going into it.

As you are probably aware, the two small square devices with four quick-disconnect terminals each are bridge rectifiers which convert AC to DC. The DC output of each one will then run across one of the large capacitors to smooth the waves. The larger black unit with screw terminals ("F1891D800") is almost certainly another rectifier, of significantly greater capacity. That is probably the one which is part of the servo motor power supply.

[Johns tool room]

You can probably use the entire transformer / rectifier / capacitor assembly that was used in the original control. As previously noted, if it was adequate to run the three motors before, it will still be so; and if needed you can expand later if you exceed its capacity.

Just make sure that the DC voltage coming out of it is within spec for the All-in-one unit: no more than 120VDC after the rectifier and capacitor. That means no more than about 85VAC going into it.

As you are probably aware, the two small square devices with four quick-disconnect terminals each are bridge rectifiers which convert AC to DC. The DC output of each one will then run across one of the large capacitors to smooth the waves. The larger black unit with screw terminals ("F1891D800") is almost certainly another rectifier, of significantly greater capacity. That is probably the one which is part of the servo motor power supply.

My V2XT power manual says that it has 130 Vdc coming out of it into the 3 servos. Its in page 4-2 chapter 4 of this manual

http://f1.grp.yahoofs.com/v1/QEtgUCL...l/Ch%204-5.zip

Ajax folks didn't tell me about no all in one power limitation for the servo drives. They even have a 220 transformer for where the 110 is not enough.

[Johns tool room]

Al, how does one go about modifying a toroidal if necessary?

[AjaxCNC]

You can use a low power (110VAC) or high power (220VAC) setup with the ALLIN1DC. The Capacitor and Rectifying Bridge we ship will be set up for the correct system. It takes 83VAC and will give you 110VDC to your ALLIN1DC. I have attached schematics for both power supply setups as well as full wiring schematics for a BP Boss using both low and high power. Just let us know which setup you will be using.