Lincoln Electric IM10026 TOMAHAWK 1000 - Manual (Page 21)

B-11 OPERATION B-11
MACHINE INTERFACE
The TOMAHAWK™ 1000 comes standard with a
machine interface. Interface signals provided include:
arc start, arc initiated, and arc voltage. These signals
are accessible through the 14 pin connector on the
case front.
ARC START:
The Arc Start circuit allows for triggering of the power
source to commence cutting. This circuit can be
accessed through pins K and M of the 14 pin connec-
tor. The circuit has a 15 VDC nominal open circuit
voltage and requires a dry contact closure to activate.
ARC INITIATED:
The Arc Initiated circuit provides information as to
when a cutting arc has transferred to the work piece.
This circuit can be accessed through pins I and J of
the 14 pin connector. The circuit provides a dry con-
tact closure when the arc has transferred. Input to this
circuit should be limited to 0.3 A for either 120VAC or
30VDC.
ARC VOLTAGE:
The Arc Voltage circuit can be used for activating a
torch height control. This circuit can be accessed
through pins D and G of the 14 pin connector. The
circuit provides full electrode to work arc voltage (no
voltage divider, 270VDC maximum).
Users wishing to utilize the Machine Interface can
order a K867 Universal Adapter (please adhere to the
pin locations stated above) or manufacture a 14 pin
connector cable assembly.
TOMAHAWK™ 1000
1 4 - P I N B O X R E C E P T A C L E , F R O N T V I E W
J
I
H
N
G
F
E
D
C
L
A r c S t a r t
A r c V o l t a g e
A r c I n i t i a t e d
M
K