POWER-MASTER 500 - Victor Technologies

POWER-MASTER 500 430581-004
Standard Features
The power source has the fol low ing stan dard
fea tures.
a. Short-Circuit Pro tec tion – The out put of the
power source can be short cir cuited in any of the
modes of op er a tion. This pro tec tion fea ture will
in stantly limit the out put cur rent to a safe value, to
as sure re li able op er a tion of the power source.
b. Out put Over load Pro tec tion – The over load
pro tec tion fea ture will limit the con tin u ous weld
cur rent to the max i mum value listed in the spec i fi -
ca tions for any of the modes of op er a tion. The
ma chine will con tinue to op er ate but the cur rent
will be lim ited to this max i mum value.
c. Cooling Fan Con trol – The cool ing fans are
de signed to op er ate only when re quired. They
will come on when ever the out put contactor con -
trol of the ma chine is on. The fans will come on for
sev eral min utes when the ma chine is first turned
on and will nor mally stay on for sev eral min utes
af ter the out put contactor con trol has been
switched off. The fans will turn off af ter sev eral
min utes of in ac tiv ity, to min i mize the amount of
Net weight: 154 LBS
Fig ure 3-2 Power Source Di men sions
dirt be ing drawn into the ma chine, as well as
lengthen the life of the fans.
d. Overtemperature Pro tec tion – If the ma -
chine over heats be cause of blocked air flow, ex -
ces sive am bi ent tem per a tures, failed fan, or
other cause, the overtemperature pro tec tion will
dis able the out put of the power source un til it has
cooled down. If the overtemperature pro tec tion
cir cuit op er ates, it will turn on the in di ca tor light
on the front panel and the fans should con tinue to
run un til the ma chine cools. The
overtemperature cir cuit will re set it self au to mat i -
cally once the ma chine has cooled.
e. Multi-Voltage Op er a tion – The power source
is de signed to op er ate from a wide range of in put
line volt ages as given in the spec i fi ca tions. The
ma chine can be re con fig ured for the dif fer ent line
volt ages with a sim ple, rug ged volt age change -
over panel ac ces si ble by re mov ing the left side
panel of the ma chine. (See in stal la tion chap ter
for de tailed in struc tions).
3-3