Tweco PC-500 - Manual (Page 15)

Manual 0-4601 2-1 INTRODUCTION
SECTION 2:
INTRODUCTION
2.01 Scope of Manual
This manual contains descriptions, operating instructions and basic maintenance procedures for the Firepower Model
PC-500 Plasma Cutting Power Supply only. Servicing of this equipment is restricted to properly trained personnel;
unqualified personnel are strictly cautioned against attempting repairs or adjustments not covered in this manual, at
the risk of voiding the Warranty.
Read this manual thoroughly. A complete understanding of the characteristics and capabilities of this equipment will
assure the dependable operation for which it was designed.
NOTE
Refer to the Torch Manual for torch and cutting information.
2.02 Power Supply Specifications
Input Power
Input Power Cable
Output Current
Power Supply Gas
Filtering Ability
Ambient Temperature
IEC
Rating
TDC
Rating
IEC
Rating
TDC
Rating
IEC
Rating
TDC
Rating
Duty Cycle
Current 40 Amps n/a 25 Amps n/a n/a n/a
DC Voltage 96 vdc n/a 90 vdc n/a n/a n/a
Firepower PC-500 Power Supply Specifications
40% 60% 100%
40° C (104° F)
208 / 230 VAC (187 - 253 VAC), Single Phase, 60 Hz
Particulates to 20 Microns. Particulates to 0.85 microns with
additional single-stage filter installed.
20 - 40 Amps, Continuously Adjustable
Firepower PC-500 Power Supply Duty Cycle *
Power Supply includes input cable with plug.
* NOTE: The duty cycle will be reduced if the primary input power (AC) is low
or the output voltage (DC) is higher than shown in this chart.
NOTE:
IEC Rating is determined as specified by the International Electro-Technical Commission. These specifications in-
clude calculating an output voltage based upon power supply rated current. To facilitate comparison between power
supplies, all manufacturers use this output voltage to determine duty cycle.
TDC Rating is determined using an output voltage representative of actual output voltage during cutting with a TDC
torch. This voltage may be more or less than IEC voltage, depending upon choice of torch, consumables, and actual
cutting operation.