Tweco 6000 CE Merlin - Manual (Page 21)

Manual 0-2601 3-3 INSTALLATION PROCEDURES
B. Opening Power Supply Enclosure
The left side panel (viewed from the front) of the Power Supply
must be removed to make electrical connections and to select
the proper input voltage.
WARNING
Disconnect primary power at the source before
assembling or disassembling power supply, torch
parts, or torch and leads assemblies.
1. Remove the ten screws which secure the left side panel
(viewed from the front) to the Power Supply .
Left Side Panel
Screws
(10 Places)
A-01535
Figure 3-3 Opening Power Supply
2. Remove the left side panel from the Power Supply.
3.07 Checking Input Connections
The Power Supply is wired to use input voltages of
380/415 VAC. Internal busbars must be checked on the
input voltage terminal board to verify proper installation
.
1. Locate the input voltage terminal board on the
left side of the power supply.
Input Voltage
Terminal Board
L1
L2
L3
Busbars
A-01091
Extra Busbar
Storage Location
Figure 3-4 Input Voltage Terminal Board Location
NOTE
Extra busbars are attached (stored) to the top
side of the power transformer assembly.
2. Check the busbar configuration on the input voltage
terminal board . The busbar configuration must corre-
spond with the available line voltage per the following
figure and the label inside the unit:
11 12
L3 13
15 14
6 7
L2 8
10 9
1 2
L1 3
5 4
Busbar Connections
For Input Voltage
Of 380/415 VAC
A-01090
Figure 3-5 Busbar Connections
If necessary, reposition the busbars to correspond to the
available line voltage.