Arc Start Console Output Connections; Asc Control Cable - Lincoln Electric FineLine 170HD Operator's Manual

FineLine 170HD Plasma System

3.8 Arc Start Console Output Connections

Refer to Figure 8 for the physical location of all connections. Secure the cover on the
ASC when installation is complete. When making brass fitting connections, use two
opposing wrenches and only tighten enough to make water or gas seals. The fittings
are subject to damage if over tightened.
Torch Leads
1) Remove the threaded ring from the brass shield connector on the end
2) Slide the threaded ring over the torch leads, thread it onto the brass
3) Connect the torch CTP (Clear The Plate, a.k.a. Ohmic Sense) sensor
4) Connect the torch electrode/coolant supply lead to the brass cathode
5) Connect the torch coolant return lead to the brass cathode manifold.
6) Connect the torch nozzle lead to the angled ("L") bracket on the red

ASC Control Cable

7) Connect the ASC control cable to the connector labelled P2 on the
P2
ASC Ground Cable
8) Connect the ASC ground cable (user-supplied) to the ground stud on
This information is subject to the controls of the Export Administration Regulations [EAR]. This information shall not be provided to
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of the torch leads. Route the torch leads through the opening in the
ASC. Push the brass shield connector through the hole until it is
seated against the ASC enclosure.
shield connector, and then tighten firmly. The shield connector will
ground the braided shield to the ASC enclosure in order to help reduce
high frequency noise emission. Using an ohmmeter, measure for zero
Ohms between the braided shield and the ground stud located on the
outside of the ASC enclosure.
lead to the red hexagonal standoff.
manifold. The torch electrode/coolant supply lead has right hand
threads.
The torch coolant return lead has left hand threads.
hexagonal standoff as shown using the supplied hardware. The torch
nozzle lead has right hand threads.
ASC and to the connector labelled P2 on the GC.
The GC supplies 24VDC to the ASC through this cable. The 24VDC is
protected by a PTC overcurrent protection device, which automatically
resets.
the ASC labelled with the symbol shown and to the star ground point
for the cutting system. Make sure that good metal-to-metal contact is
made. 6AWG cable is recommended.
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BK8053-000111 Rev D