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ESAB
Portable Generator
ESP-400C
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ESAB ESP-400C - Page 113
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SECTION 7
Replacement Parts
ESP 400C Plasma Power Source
7-13
Item No
Qty
Part Number
Description
Circuit Symbol
1
2
2062334
Motor Fan 1/3 hP
M1,2
2
6
17300001
Resistor 1 ohm 300W
R1-3,21-23
3
3
17300004
Resistor 4 ohm 300W
R18-20
112
114
Table of Contents
Main Page
Table of Contents
3
ESP-400Cplasma Power Source
7
Section 1 Safety
7
Introduction
7
Safety Notations and Symbols
7
General Safety Information
8
Installation Precautions
9
Electrical Grounding
10
Operating a Plasma Cutting Machine
10
Service Precautions
14
Safety References
15
Section 2 Description
17
General Specifications
17
Dimensions and Weight
18
Section 3 Installation
19
General
19
Unpacking
19
Placement
20
Input Power Connections
20
Primary Power
21
Input Conductors
22
Input Connection Procedure
22
Output Connections
23
Output Cables
23
Output Connection Procedure
24
Parallel Installation
24
System Interconnecting Block Diagram with Smart Flow
26
System Interconnecting Block Diagram Without Smart Flow
27
Section 4 Operation
29
Introduction
29
Control Panel
29
Sequence of Operation
32
Arc Initiation Settings
32
Enable/Disable Arc Initiation Timer
34
Adjusting Arc Initiation Timer
34
Arc Initiation Controls
35
Start Current and Up-Slope Timer
35
ESP-400C Plasma Power Source
37
Section 5 Maintenance
37
General
37
Cleaning
37
General
39
Fault Indicators
39
Fault Isolation (Diagnostics)
42
Power Not on or Low Voltage
42
Fault Light Illumination
43
Torch will Not Fire
47
Fuses 1 and 2 Blown
48
Intermittent, Interrupted or Partial Operation
48
Testing and Replacing Components
51
Power Rectifiers
52
Negative Plate
52
Positive Plate
53
Electrode Plate
53
Freewheeling Diodes and Igbts
54
Power Shunt Installation
56
Procedure for Verifying Calibration of Digital Meters
57
ESP-400C Schematic Diagrams
58
Wiring Diagrams
75
PC Controller Board (PCB1 - P/N 38032) Schematics
91
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