hypertherm voltage divider board

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robertspark
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hypertherm voltage divider board

Post by robertspark » Sun Jul 19, 2020 6:48 am

I was wondering if someone had access to a hypertherm voltage divider board or a hypertherm 45xp, 65, 85 what they could take a look for me please?

I am trying to figure out what the primary voltage divider resistors are within the hypertherm powermax plasma cutters

All I need is someone to kindly just list the numbers on the resistors highlighed below, thanks,
2020-07-19 10_50_47-hypertherm voltage divider.png
they have an internal 20:1 voltage divider circuit and then this board allows you to adjust that divided voltage from 20:1 to 21.1:1 30:1 40:1 and 50:1

the 45 non XP has a 100K and 2K voltage divider which provides a 50:1 ratio (kindly shown on the service manual schematic)

I have some information that the primary resistor is 50K and the 20:1 divider is 2K5..... which is a bit of an odd resistor value, hence if some kind person could tell me the numbers of the components shown on the attached image that would help tremendously.

Thanks,

(it'll save the £150 to buy the board I'm not going to use which is option B
part no: 228697)

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Re: hypertherm voltage divider board

Post by acourtjester » Sun Jul 19, 2020 1:30 pm

I really had to skint to see these, here they are from my PM65
Snap_9.jpg
Snap_8.jpg
Snap_7.jpg
Snap_6.jpg

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Re: hypertherm voltage divider board

Post by robertspark » Sun Jul 19, 2020 2:00 pm

acourtjester wrote:
Sun Jul 19, 2020 1:30 pm
I really had to skint to see these, here they are from my PM65
Snap_9.jpg
Snap_8.jpg
Snap_7.jpg
Snap_6.jpg
thanks so very very much, I owe you much more than a beer!

8452 = 84k5
1002 = 10k
4491 = 4.99k
3321 = 3k32

it seems that the primary resistance is closer to 100k and 5k before the board (and not 50k and 1k as per 45xp given in the price manual for the 45xp 50:1 output)

thanks again just what I needed

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Re: hypertherm voltage divider board

Post by acourtjester » Sun Jul 19, 2020 3:17 pm

Happy to help, took me a few minutes to finger how to use the microscope camera :HaHa :HaHa
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Re: hypertherm voltage divider board

Post by Scarbro4 » Sun Jan 03, 2021 11:38 am

Hello,
I am new to the plasmacam world. I just purchased the 5x10 plasmacam table and attempting to install a hypertherm xp 45 to the table.
I am using the hand torch not a machine torch. The Hypertherm user manual advises under the machine torch section to change the factory 5-position voltage divider from the factory setting of 50:1 to the plasmacam setting of 21:1:1.
If I am using the hand torch do I still need to change the voltage divider from 50:1 to 21:1:1 or do I leave it at the factory 50:1 for hand torch use?
Thank you,
Glenn Scarbrough FWFD

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Re: hypertherm voltage divider board

Post by robertspark » Sun Jan 03, 2021 12:54 pm

you will need to change the voltage divider regardless of a hand torch or machine torch if you are intending to interface it with a plasmacam.... if the plasmacam expects to see 21.1:1

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Re: hypertherm voltage divider board

Post by Scarbro4 » Sun Jan 03, 2021 2:31 pm

Thank you,
I will make the change.
Hopefully in a few days I will be up and running or crawling. LOL
Glenn Scarbrough FWFD

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Re: hypertherm voltage divider board

Post by adbuch » Wed Jan 06, 2021 3:22 am

Scarbro4 wrote:
Sun Jan 03, 2021 11:38 am
Hello,
I am new to the plasmacam world. I just purchased the 5x10 plasmacam table and attempting to install a hypertherm xp 45 to the table.
I am using the hand torch not a machine torch. The Hypertherm user manual advises under the machine torch section to change the factory 5-position voltage divider from the factory setting of 50:1 to the plasmacam setting of 21:1:1.
If I am using the hand torch do I still need to change the voltage divider from 50:1 to 21:1:1 or do I leave it at the factory 50:1 for hand torch use?
Thank you,
Glenn Scarbrough FWFD
Hi Glenn,

The CPC port with voltage divider is only for machine torch, not the hand torch. So you will not need to change the voltage divider, because it is not used for the hand torch. What you will need to do is buy and install the Plasmacam torch control wiring kit as described below. The torch control cable included with this kit contains the proper voltage divider as part of the cable. You will need to follow the installation instructions as described in Chapter 4 of the Video Manual. This involved removing the cover from your 45xp and cutting/splicing the torch trigger wire as well as connecting the red and black wires which monitor the raw arc voltage used for the torch height control. A replacement Video Manual is available from Plasmacam for $10 plus shipping.

If you have not already done so, you will want to file the change of ownership form for you table with Plasmacam so you can become registered and purchase replacement parts as well as join the Plasmacam Owner's Community Online Forum. You can phone Plasmacam tech support for a copy of this form.

David

torch control wiring kit

Install a torch control cord in a plasma cutter you want to use with the machine. Kit includes cord, test/manual cutting jumper, strain relief, and various connectors for wiring to most any cutter. Buy an additional cord for an additional cutter, if you lost the original jumper, or replace if damaged or burned out (no longer reports arc voltage or triggers cutting). Carefully follow testing instructions in manual prior to use. Warning: cord includes special low-EMI cabling and internal resistors. Do not try to make your own cord or alter ours by cutting it apart, or you will likely endanger yourself and damage your controller!
Part #: D-203
Price: $59

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Re: hypertherm voltage divider board

Post by john78 » Mon Jan 11, 2021 11:49 am

FYI, the voltage divider board is not the whole circuit. If you look at the diagram for any of the models that come with that board the main part of the divider circuit is on the power board. Voltage that comes off the power board is 20:1. PCB4/voltage divider board adds resistors via the switches to get the other divided voltages.
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Re: hypertherm voltage divider board

Post by adbuch » Mon Jan 11, 2021 4:12 pm

Thanks for the information. In the OP's case, he is using a hand torch, so the CPC port is not applicable. It is only for machine torch.
David

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Re: hypertherm voltage divider board

Post by john78 » Mon Jan 11, 2021 5:01 pm

adbuch wrote:
Mon Jan 11, 2021 4:12 pm
Thanks for the information. In the OP's case, he is using a hand torch, so the CPC port is not applicable. It is only for machine torch.
David
I don't think the original poster mentioned anything about a hand torch. Just asked about the divider resistors.
I measured the resistance of the power board resistors on an old 45 XP power board. They are 20k and 5k
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Re: hypertherm voltage divider board

Post by adbuch » Mon Jan 11, 2021 8:20 pm

john78 wrote:
Mon Jan 11, 2021 5:01 pm
adbuch wrote:
Mon Jan 11, 2021 4:12 pm
Thanks for the information. In the OP's case, he is using a hand torch, so the CPC port is not applicable. It is only for machine torch.
David
I don't think the original poster mentioned anything about a hand torch. Just asked about the divider resistors.
I measured the resistance of the power board resistors on an old 45 XP power board. They are 20k and 5k
Hello,
I am new to the plasmacam world. I just purchased the 5x10 plasmacam table and attempting to install a hypertherm xp 45 to the table.
I am using the hand torch not a machine torch. The Hypertherm user manual advises under the machine torch section to change the factory 5-position voltage divider from the factory setting of 50:1 to the plasmacam setting of 21:1:1.
If I am using the hand torch do I still need to change the voltage divider from 50:1 to 21:1:1 or do I leave it at the factory 50:1 for hand torch use?
Thank you,
Glenn Scarbrough FWFD
Top

The original post was about 5 months ago and you are correct - no mention of hand torch. The most recent question is shown above. In this case, I should probably refer to him as OP#2.
David

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Re: hypertherm voltage divider board

Post by weldguy » Tue Jan 12, 2021 3:24 pm

scarbro4 isn't the OP David, he's another member looking for assistance in the this topic also. Maybe we should have this thread split, kinda 2 different issues.

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Re: hypertherm voltage divider board

Post by robertspark » Tue Jan 12, 2021 5:17 pm

I am the OP... the original OP, wow this thread is confusing...

the type of torch has no effect on the resistance....

it may however require a link to be installed if you are using a hand torch on a CNC machine.

there are other posts on that, it's not recommended by hypertherm but Im sure you have you big boy pants on.

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Re: hypertherm voltage divider board

Post by adbuch » Tue Jan 12, 2021 6:19 pm

weldguy wrote:
Tue Jan 12, 2021 3:24 pm
scarbro4 isn't the OP David, he's another member looking for assistance in the this topic also. Maybe we should have this thread split, kinda 2 different issues.
I understand that. As I said, I should have referred to him as OP #2. In any case, the original thread started about 6 months ago and I believe was answered to the original posters satisfaction. I was responding to the most recent question. Yes - perhaps it should have been a new thread. The main thing here is that the cpc port does not apply to the hand torch, only the machine torch.
David

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Re: hypertherm voltage divider board

Post by robertspark » Wed Jan 13, 2021 12:40 pm

adbuch wrote:
Tue Jan 12, 2021 6:19 pm
The main thing here is that the cpc port does not apply to the hand torch, only the machine torch.
David
that is not true if you are using a hand torch for CNC.... which you can do and many do do (although it is not recommended by hypertherm)

the CPC (circular plastic connector) is the machine interface port.

it provides a
- divided voltage output
- the torch fire circuit (dry contact / volt free contact closure)
- the arcOk or arc transfer signal (via internal contact closure)
and a common earth / ground / cable shielding connection.

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Re: hypertherm voltage divider board

Post by adbuch » Thu Jan 14, 2021 2:29 am

The following applies to cnc operation with the Plasmacam table/controller.

For Plasmacam with Hypertherm machine torch/cpc port, the proper torch control cable (Plug & Play) is available from Jim Colt (PJ Metal Fab)

http://www.pjmetalfab.com/plasma-cam-ac ... play-cable

or Robert Johnson

https://fourninety-creations.myshopify. ... Kns5DTywNU

For Plasmacam with Hypertherm hand torch the proper torch control cable is available from Plasmacam.

https://owners-community.com/order_parts.php?sid=

torch control wiring kit
Part #: D-203
Price: $59

Obviously those with diy tables/controllers could "cut & splice" or "pin-swap" to rig up a hand torch to interface to the cpc port. For the Plasmacam there is no need to do this as the proper torch control cable is available at a very reasonable cost.

David

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