Tweco Ultima 150 - Manual (Page 19)

Manual 0-2472 13 SECTION 3: INSTALLATION
SECTION 3:
INSTALLATION
3.01 Introduction
This section describes installation procedures for the
ULTIMA-150 Power Supply. These instructions apply
to the power supply only; installation procedures for
options and accessories can be found in manuals pro-
vided for those components.
3.02 Site Location
Select a clean, dry location with good ventilation and ad-
equate working space around all components. The power
supply is cooled by air flow through the front and rear.
Air flow must not be obstructed. At least 2 feet (0.61 m) of
clearance should be provided at the front and rear with at
least 6 inches (0.15 m) of clearance on each side.
CAUTION
Operation without proper air flow will inhibit
proper cooling and reduce duty cycle.
NOTE
Review the safety precautions in the front of this
manual to be sure that the location meets all safety
requirements.
3.03 Unpacking
The ULTIMA-150 is carefully packed to protect it from
damage during shipping. Components may be packed in
one carton or separately in several cartons, depending on
the system configuration and accessories ordered.
1. Unpack each item and remove all packing mate-
rial.
2. Locate the packing list(s) and use the list to iden-
tify and account for each item.
3. Inspect each item for possible shipping damage. If
damage is evident, contact your distributor before
proceeding with installation.
3.04 Primary Input Power
Connections
The ULTIMA-150 Plasma Welding Power Supply accepts
input voltages from 200V to 460V. Input can be 50 or 60
Hz, single-phase or three-phase.
The primary power source, power cable, and plug (sup-
plied by user) must conform to the local electric code and
the recommended circuit protection and wiring require-
ments. (See Appendix I for requirements.)
NOTE
Every system is factory-wired for 460V three-phase
input. For any other input voltage, the power sup-
ply must be reset by the user. Refer to Section 3.05,
Voltage Changeover, for instructions on how to
change the voltage setting.
For 575 Volt operation, an optional Transformer Module is
available. It is factory set to step down to 460V three-
phase input.
NOTE
Input power connections can be made directly to a
properly fused disconnect or by using a plug which
conforms to the recommended ratings.
WARNING
Disconnect primary power at the source before as-
sembling the power supply, torch parts or torch and
leads assemblies.
AC Input Cable
Ground
Fuse
Voltage
Selection
Plug
Primary
Power Switch
A-00813
Figure 3-1 Internal View Power Input Connections