You can use your YesWelder machine as long as you aren’t shy opening it up to hook it up. Looking at the specs online it is NOT a HF start machine which is the only hard rule on compatibility. The feeds and speeds sheet is kinda pathetic so you will be on your own dialing it in. You could probably use the Primeweld cut chart to get you close. The PW Cut 60 is a 6240 Watt (60A * 104V) machine and the yeswelder 50DS is a 5610 Watt(55A * 102V) machine. Point being their output voltage is similar (102 vs 104) so the PW chart should get you close.
There have been a few people that have considered that machine but I don’t know of any users currently using that machine. Here is a topic that discusses it.
YesWelder CUT-55DS Non-HF Plasma Cutter Candidate? - CrossFire ® / General Discussion - Langmuir Systems Forum
I think I saw a YouTube video of Mike Festiva trying a Yeswelder cutter on a CF Pro table. If I recall correctly his review was positive. I don’t remember what model he was using… and after a brief search I couldn’t find it on his Youtube page.
Snip from Cut-55DS spec
I included a snip of cut sheet provided by Yeswelder below. I converted the units to inches and inches per min to compare(snip of spreadsheet below cut chart). Honestly this cut chart really doesn’t make sense. I did some interpolation to complete the chart based on the graph, but the speeds dive off faster than they should when considering the wattage, the specs say the cutter produces. That’s why I say you may be on your own as far as feeds and speeds go.
Example of why the cut chart seems off.
YesWelder cut speed for 6mm(.24 in) 15.7 ipm @ 55 amps
PW Cut 60 cut speed for 1/4" 38ipm @ 45 amps
