Tweco Merlin 6000 Slave PS - Manual (Page 18)

INSTALLATION PROCEDURES 3-2 Manual 0-2570
3.05 Input Power Connections
The Power Supply accepts input voltages from 200V to
575V, 50 or 60 Hz, three-phase power. Every Power Sup-
ply is factory wired for 460V input. For any other input
voltage, the Power Supply must be reset.
NOTE
Refer to Section 3.06, Voltage Selection.
A. Electrical Connections
The power source must conform to local electric code and
the recommended circuit protection and wiring require-
ments shown in Appendix 1.
B. Input Voltage Selection
Every Power Supply is factory-wired for 460V three-phase
input. For any other input voltage, the Power Supply
must be changed using the procedures in Section 3.06.
C. 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 as-
sembling 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-01528
Figure 3-2 Opening Power Supply
2. Remove the left side panel from the Power Supply.
3.06 Voltage Selection
The Power Supply can be wired to use input voltages
from 200 - 575 VAC. Power Supply is factory-wired for
460 VAC, three-phase input. Voltage selection is accom-
plished by switching busbar connections on the input
voltage terminal board inside the Power Supply.
1. Locate the input voltage terminal board on the
left side of the power supply.