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THEORY OF OPERATION
E-2 E-2
V160-S & -T
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NOTE: Unshaded areas of Block Logic
Diagram are the subject of discussion
FIGURE E.2 – GENERAL DESCRIPTION
GENERAL DESCRIPTION
The V160-S is an industrial 160 amp arc welding
power source which utilizes single phase input power,
to produce constant current output. The welding
response of this Invertec has been optimized for stick
(SMAW) and Touch Start TIG (GTAW). The unit is ideal
for industrial applications were portability is important.
The Invertec V160-S is recommended for stick welding
with such popular electrodes as Fleetweld 35,
Fleetweld 37, Fleetweld 180 and LH 78. It features
adjustable arc control to adjust the arc force and start.
The Invertec V160-S performs DC Touch Start Tig
Starting with excellent results.
WELDING CAPABILITY
The Invertec V-160-S is rated at 160 amps, 26.4 volts,
at 35% duty cycle on a ten minute basis. It is capable
of higher duty cycles at lower output currents. It is
capable of 130 amps, 25.2 volts at a 100% duty cycle.
If the duty cycle is exceeded, a thermal protector will
shut off the output until the machine cools. See
Technical Specifications in A-2 for other related out-
puts.
LIMITATIONS
The V160-S is not recommended for pipe thawing.
INVERTER BOARD
W05X0190
(
SCHEMATIC X0190)
GND
D
C-
D
C+
W
1
W2
INPUT BOARD
W05X0250
(SCHEMATIC X0203)
Y/G
BLACK
RED
W
1DC-DC-
+
-
J
P1
J
P1
JP2
G
ND
AC2
A
C1
BROWN
BLUE
B
LACK
W
HITE
S
1
1
3
4
2
D
C+
D
C-A
115/230/1/50/60
Vac
GREEN
FAN
J1
WELD CONTROLLER
W05X0233
(
SCHEMATIC X0233)
DISPLAY BOARD
W05X0245
(SCHEMATIC X0245)
J
P1
C
W
REMOTE
CONNECTOR
W
ARNING HIGH VOLTAGE CAN KILL
•
Do not operate with coers removed.
• Disconnect input power by unplugging
power cord before servicing.
•
Do not touch electrically live parts.
•
Only qualified persons should install,
use or service this machine
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D E C B A