11
General overview: The PowerPlasma 50S ulizes the lat-
est in inverter design technology. It’s a portable dual
voltage plasma cuer with an output of 50 amps on
240V 1 phase power. It can also be used with 120 V (dual
voltage models only) with limited output up to 25 amps.
This design allows the unit to be used in many dierent
circumstances and applicaons. The PowerPlasma 50S is
also equipped with a CNC port (see appendix) for light or
moderate CNC work. A separate CNC torch may be
bought for this type of operaon. The arc start incorpo-
rates a blow back design with an automac pilot arc.
The blow back design of the torch is depicted in detail
located in the torch secon of this manual. This unit
features low air pressure protecon safety shut down-
along with duty cycle and overcurrent protecon which
will shut down output of the plasma cuer unl the con-
dion is resolved. The OK-to-cut light is a feature which
can be used by the operator to determine, at a glance, if
the air pressure is within the safe working range. The
pilot arc is designed for scouring the surface of the metal
and creang a path for connuity. The unit itself provides
the pilot arc through a ground path inside the torch head
and back to the unit. To prevent consumable burn out
and torch damage, the pilot arc is reduced to 22-27 amps
when acvated. Once the pilot arc establishes connuity,
arc intensity and amps increase as the arc transfers to the
metal.
General Use and Care: Care should be taken to keep the
unit out of direct contact with water spray. The unit is
rated IP21S, which rates it for light contact with dripping
water. It is a good idea to remove the plasma cuer
from the vicinity of any water or moisture source to re-
duce the possibility of electrocuon or shock. Never op-
erate this plasma cuer in standing water.
Every 1-2 months, depending upon use, the plasma
cuer should be unplugged, opened up and carefully
cleaned with compressed air. Regular maintenance will
extend the life of the unit.
IMPORTANT: Before opening the unit for any reason,
make sure the unit has been unplugged for at least 10
minutes to allow me for the capacitors to fully dis-
charge. Severe shock and/or death can occur.
Do not restrict air ow or movement of air around the
plasma cuer. Allow a buer distance of 2 from all
sides if possible, with a minimum distance of at least 18”
clearance. Do not operate the unit immediately in the
weld/cut area. Do not mount in areas that are prone to
severe shock or vibraon. Li and carry the welder by
the handle. Do not direct metallic dust or any dirt inten-
onally toward the machine, parcularly in grinding and
welding operaons. Make sure the control panel is pro-
tected from damage.
NOTE: When servicing unit, remove rear plasc panel by
removing the screws in the plasc rear panel. Then re-
move the main metal cover to gain interior access. DO
NOT REMOVE FRONT PLASTIC PANEL OR ITS SCREWS!
THE FRONT PANEL IS INTEGRAL TO THE FRAME OF THE
UNIT. REMOVING THE FRONT PANEL IS TIME-
CONSUMING AND UNECESSARY. DO NOT REMOVE ANY
SWITCHES OR CONTROLS.
Duty Cycle. The duty cycle has been determined for the
PowerPlasma at 60% @ 50A while operang on240 V
(60% @ 25A while operang on 120V). The duty cycle is
based o a 10 minute duty cycle rang at 40° C. This
means that the unit is capable of being operated connu-
ously at the maximum amps for 6 minutes out of 10
minutes without a break to let the unit cool. For the re-
mainder of the 10 minute me period, the welder should
rest for maximum service life. The temperature light will
come on and the unit will automacally stop cung when
an overheat condion has occurred. Stop trying to cut
immediately. Heat will connue to be generated by and
transferred to the electronics aer welding has ceased.
Cung in humid, or hot condions can aect duty cycle
as well. Do not shut down an overheated unit unl it has
me to safely cool. If the duty cycle is exceeded, the over
temperature indicator will be lit and the unit will stop
cung. In this case allow the unit to cool for a minimum
of 15 minutes before resuming work. Once the overheat-
ed condion is sasfactorily remedied, the unit may be
safely shut down or cung may resume. Cycle the power
switch to reset the unit if needed. Do not operate the
unit with the covers removed. When using for CNC pur-
poses, use cauon to prevent overheang. The best way
to prevent overheang in CNC applicaons is to use the
unit at a lower amperage output to increase duty cycle
me and to extend the cung life of the consumables.
IMPORTANT!
This manual has been compiled to give an overview of
operaon and is designed to oer informaon centered
around safe, praccal use of the plasma cuer. Welding
and cung operaons are inherently dangerous. Only the
operator of this Plasma cuer can ensure that safe oper-
ang pracces are being followed, through the exercise of
common sense pracces and training. Do not operate
this machine unl you have fully read the manual, in-
cluding the safety secon. If you do not have the skill or
knowledge to safely operate the plasma cuer, do not use
this plasma cuer unl formal training is received. To
prevent re, always be aware of your surroundings.
Introduction and SpecificationsSection 1