plasma control panel

Sorry for some silly questions(I am not electronic guy). What does 0v mean in the torch relay and 220ohm resistor in the thefabricator03's schematics? Does it mean that I should not connect anything to 14 on the relay? What about 0v on the resistor? Thanks.

shizyo wrote: Sorry for some silly questions(I am not electronic guy). What does 0v mean in the torch relay and 220ohm resistor in the thefabricator03's schematics? Does it mean that I should not connect anything to 14 on the relay? What about 0v on the resistor? Thanks.

0v means they are both connected to the 0v rail of the COMMON 24V POWER SUPPLY.

Hi, thanks for the reply. By the 0v rail of the COMMON 24V POWER SUPPLY, do you mean -V output on my power supply(attached picture)? Thanks.

shizyo wrote: Hi, thanks for the reply. By the 0v rail of the COMMON 24V POWER SUPPLY, do you mean -V output on my power supply(attached picture)? Thanks.

Yes, that is correct.
Your -V = 0V on the COMMON 24V POWER SUPPLY
Your +V = 24V on the COMMON 24V POWER SUPPLY

Hi Phill, I appreciate your help. Please bear with me 1 more question. For the 220 ohm resistor, I need to connect 1 leg of the resistor to TB5-6 on 7i76e and also from the end of this leg, I will solder a cable and connect this cable to 0v on the 24v power supply. Is it correct? Thanks.

shizyo wrote: Hi Phill, I appreciate your help. Please bear with me 1 more question. For the 220 ohm resistor, I need to connect 1 leg of the resistor to TB5-6 on 7i76e and also from the end of this leg, I will solder a cable and connect this cable to 0v on the 24v power supply. Is it correct? Thanks.

one leg of the resistor connects to either TB5-6 or to the socket your cable to the plasma unit plugs into.
the other leg could connect to either TB3-24 or TB1-8 as 0v is connected to both of those or -V on your power supply.