POWER-MASTER 500 - Victor Technologies

POWER-MASTER 500 430581-004
The me ter will au to mat i cally switch over to ac tual
amps or volts while weld ing, de pend ing on the
po si tion of the me ter Amps/Volts switch.
7 – Me ter Amps/Volts Switch : This two-position
tog gle switch is used to se lect whether the dig i tal
me ter will dis play amps or volts. To pre set weld
am per age for GTAW, SMAW or CAG, place this
switch in the AMPS po si tion. To pre set weld volt -
age for GMAW, place this switch in the VOLTS
mode. Af ter an arc has been ini ti ated, this switch
al lows ei ther ac tual weld amps or weld volts to be
dis played on the me ter.
8 – Re mote/Lo cal Switch: The re mote/lo cal
tog gle switch is used to se lect ei ther front panel
con trol of out put amps/volts (LO CAL mode), or
re mote con trol of out put amps/volts through the
19 pin or 14 pin re cep ta cles lo cated on the rear
panel (RE MOTE mode). For GTAW mode, the
max i mum out put cur rent must be pre set by the
front panel Amps/Volts con trol pot. For all other
modes, the re mote con trol is full out put of the ma -
chine.
9– Amps/Volts Con trol: This con trol pot. sets
the out put amps or volts de pend ing on the weld
pro cess. Clock wise is in creas ing out put. For all
modes ex cept GTAW, this con trol is only ac tive
when the LO CAL/RE MOTE switch is in the LO -
CAL mode. For GTAW this con trol pot. is used to
set the max i mum weld cur rent avail able to a foot
pedal or hand con trol. To pre set max i mum out put
for GTAW, place the LO CAL/RE MOTE switch in
the LO CAL mode and set the max i mum de sired
am per age on the dig i tal me ter. (The me ter
amps/volts switch must be in the amps po si tion).
Place the LO CAL/RE MOTE switch in the RE -
MOTE mode to ac ti vate foot pedal con trol.
10 – Arc Force/In duc tance Con trol: This con -
trol pot. is ac tive for SMAW (Stick) and GMAW
(Mig). In SMAW mode, this pot. con trols the
amount of arc force or dig that the arc has. Max i -
mum arc force is full clock wise, full coun -
ter-clockwise is zero arc force. In GMAW mode,
this be comes an in duc tance con trol. Max i mum
in duc tance is full clock wise. Higher in duc tance
set tings make the arc “softer” with less spat ter.
Lower in duc tance set tings give a stron ger “driv -
ing” arc. The in duc tance should be set ac cord ing
to the type of wire and gas and de sired arc char -
ac ter is tics de sired. Gen erally, the in duc tance
con trol can be set at mid-range as a good start ing
point.
11 – Out put Neg a tive Ter mi nal: Con nec tion
point for neg a tive weld ing lead.
12 – Out put Pos i tive Ter mi nal: Con nec tion
point for pos i tive weld ing lead.
13 – Receptacle, 14 Pin: This re cep ta cle al lows
the power source to in ter face with wire feed ers,
and re mote con trols such as a foot pedal. This re -
cep ta cle pro vides aux il iary power, contactor
con trol for en er giz ing the out put of the power
source, and re mote out put con trol. The pinout is
as fol lows:
A) 24 VAC aux il iary power high side
B) 24 VAC Contactor cir cuit, (clo sure be tween
pin A and pin B will en er gize out put).
C) Re mote con trol max i mum (top side of
re mote pot.)
D) Con trol cir cuit com mon
E) Re mote con trol in (wiper of re mote pot.,
0 to 10 Volts).
CV mode: 0 to 10 Volts gives 10 – 44 Volts
CC mode: 0 to 10 Volts gives 5 – 560 Amps
of out put.
F) Scaled out put cur rent sig nal:
Ifb = 100 Amps/Volt
G) 24/115 VAC neu tral
Fig ure 3-4 Rear Panel
Power-Mas ter 500P
H) Out put volt age sig nal: 10 Volts/Volt
3-5