Tweco 50 CutMaster - Manual (Page 11)

Manual 0-2805 2-1 INTRODUCTION
SECTION 2:
INTRODUCTION
2.01 Scope of Manual
This manual contains descriptions, operating instructions
and basic maintenance procedures for the CutMaster 50
Plasma Cutting Power Supply only. Servicing of this
equipment is restricted to properly trained personnel; un-
qualified personnel are strictly cautioned against attempt-
ing repairs or adjustments not covered in this manual, at
the risk of voiding the Warranty.
Read this manual thoroughly. A complete understand-
ing of the characteristics and capabilities of this equip-
ment will assure the dependable operation for which it
was designed.
NOTE
Refer to the Torch Manual provided with this Power
Supply for torch and cutting information.
2.02 General Description
The power supply provides 40 amp maximum output and
includes all control circuitry, electrical and gas inputs and
outputs, pilot circuitry, primary input power cable (with
plug on 208 / 230V units only), and
work cable & clamp.
NOTE
Refer to Section 2.04 for a list of power supply op-
tions and accessories.
A-02766
CutMaster 50 Power Supply
2.03 Specifications & Design
Features
A. Power Supply Technical Specifications
The following specifications apply to the Power Supply
only:
1. Input Power (See Note)
The CutMaster 50 is available for the following in-
put power:
• 208 / 230 VAC, Single - Phase, 60 Hz
• 400VAC, Three - Phase, 50 / 60 Hz
• 460VAC, Three - Phase, 50 / 60 Hz
• 460VAC, Single - Phase, 50 / 60 Hz
NOTE
Refer to Appendix 1 for input wiring requirements.
2. Output Power
Continuously variable from 20 to 40 amps maximum.
3. Duty Cycle (see NOTE)
NOTE
The duty cycle will be reduced if the primary in-
put voltage (AC) is low or the DC voltage is higher
than shown in the chart.
208 / 230Volt Power Supply Duty Cycle:
Ambient
Temperature
104° F
(40° C)
104° F
(40° C)
104° F
(40° C)
Duty Cycle 40% 60% 100%
Current 39 Amps 33 Amps 20 Amps
DC Voltage 110 vdc 105 vdc 100 vdc
208/230 Volt Power Supply Duty Cycle
400 - Volt and 460 - Volt Power Supply Duty Cycle:
Ambient
Temperature
104° F
(40° C)
104° F
(40° C)
104° F
(40° C)
Duty Cycle 40% 60% 100%
Current 40 Amps 33 Amps n/a
DC Voltage 110 vdc 105 vdc n/a
400V, 460V Power Supply Duty Cycle
4. Pilot Circuitry
Capacitive Discharge (CD), Ignition DC Pilot