Filter
Top Products
A-4
INSTALLATION
POWER WAVE® AC/DC 1000
A-4
SYSTEM CONNECTION
System Overview
The Power Wave AC/DC 1000 power source is
designed to be a part of a modular welding system
typically controlled by a Power Feed 10A Controller
or customer supplied Programmable Logic
Controller (PLC). Each welding arc may be driven by
a single power source or by a number of power
sources connected in parallel. The actual number of
power sources per arc will vary depending on the
application. When only one power source is required
for an arc group, it must be configured as a Master.
When multiple parallel machines are required, one is
designated as the Master and the rest as Slaves. The
Master controls the AC switching for the arc group,
and the Slaves respond accordingly.
When employed in a multi-arc AC system it is benefi-
cial to synchronize the arcs to each other. The Master
for each arc can be configured to follow a dedicated
external synchronization signal to determine its fre-
quency and balance. The optional Power Wave
System Interface provides the means to synchronize
the AC wave shapes of up to four different arcs to a
common carrier frequency. This frequency can range
from 10 hertz to 300 hertz, with the most practical
range being 10 to 100 hertz. It can also control the
phase angle between arcs to reduce the effects of
welding related issues such as "Arc Blow".
The arc to arc phase relationship is determined by the
timing of each arc’s "sync" signal relative to the "sync"
signal of ARC 1.
In a typical multi-arc system, each arc is controlled by
its own Power Feed 10A Controller. The basic charac-
teristics of the individual arcs such as WFS, ampli-
tude, and offset are set locally by each arc’s dedicated
controller. The frequency, balance, and phase shift
parameters of each arc are controlled by the Power
Feed 10A Controller for ARC 1, which must be con-
nected to its Master through the Power Wave System
Interface (see multi-arc Connection Diagrams on the
next few pages).
A PLC interface is an alternate method of control for
larger systems. The PLC is typically connected via
DeviceNet directly to the Power Wave System
Interface, and the Master power source of each arc
group in the system.
The following list of Recommended and Optional
equipment is included as a reference for the follow-
ing connection diagrams. The connection diagrams
describe the layout of three typical systems. Each
diagram has a step by step Installation Checklist.
Additionally, a dedicated diagram has been provided
detailing the parallel connection of machines for
extra output capacity which can be applied to the
system diagrams as required.