Using Ac Arcs Terminal Strip Te4 Connections - Miller Electric Summit Arc 1000/1250 Owner's Manual

4-4. Using AC Arcs Terminal Strip TE4 Connections

Tools Needed:
Phase Shift
Waveform 1
Waveform 2
.
Use two-conductor (12 to 20 gauge) with uninsulated ground,
shielded cable to make TE4 connections. Connect uninsulated
ground wire to terminal C on TE4.
Connections from first to second
welding power source:
terminal A to terminal E,
terminal C to terminal C
A
B
C
D
E
TE4 on first welding
power source
OM-2221 Page 28
AC Waveforms
3/8 in
(10 mm)
Connections from second to third
welding power source:
terminal A to terminal E,
terminal C to terminal C
A
B
C
D
E
TE4 on second welding
power source
Terminal Strip TE4 Connections For Running Multiple AC Arcs
1
A
B
C
D
E
1
3
2
Connections from third to fourth
A
B
C
D
E
TE4 on third welding
power source
!
Turn Off welding power
source and disconnect input
power before opening ac-
cess door.
!
DC output units do not re-
quire synchronization with
AC output units.
!
If there are any questions re-
garding this procedure, con-
tact the factory before con-
necting units.
1 Terminal Strip TE4
This procedure allows the AC out-
put waveforms of two or more units
to have a phase shift. Make con-
nections between terminal strip
TE4 on applicable AC output units
as shown in illustration.
.
Do not disturb factory connec-
tions to terminal strip TE4.
!
Ensure that primary input
power conductors are con-
nected to each unit in the
same sequence (L1 to L1, L2
to L2, and L3 to L3). See Sec-
tion 3-18 for information on
connecting input power. See
Section 3-19 for information
on testing for proper primary
phase sequence.
2 Lead Being Connected To
TE4
3 Securing Screw
Strip 3/8 in. (10 mm) insulation off
end of lead, insert end into proper
location on TE4, and tighten appli-
cable securing screw.
Close and secure access door.
.
Connect plug as shown in Sec-
tion 4-5.
welding power source:
terminal A to terminal E,
terminal C to terminal C
Repeat same connection sequence
on following welding power sources
Ref. 801 882-A