Thermal Dynamics DRAG-GUN 38, Инструкция по эксплуатации

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Manual 0-2729 13 SECTION 4: OPERATION
SECTION 4:
OPERATION
4.01 Introduction
This section provides a description of the DRAG-GUN 38
Plasma Cutting System followed by the operating proce-
dures.
4.02 Functional Overview
The DRAG-GUN 38 Plasma Cutting System is designed to
cut most metals from gauge thickness up to 3/8 inch (9.5
mm).
4.03 Operating Controls/
Connections
12
29
20
AC GAS DC
OVER
TEMP
1
2
3 4 5
A-02134
Figure 4-1 Front Panel Contols and Indicators
A. Top Panel
1. AC Indicator
Green light indicates AC input power is present in the
system when the ON/OFF switch is in ON position.
Indicator will flash and the air compressor will run for
3-5 seconds when first turned on until the power cir-
cuits are ready.
2. GAS Indicator
Green light indicates adequate gas pressure (35 psi or
2.5 bar) or greater flowing to the torch when torch is
activated.
3. DC Indicator
Green light indicates adequate DC power output for
main arc when the torch is activated.
4. OverTEMP Indicator
Indication is off during normal operation. Yellow light
indicates overheating; unit must be allowed to cool.
The indicator will also flash momentarily if the torch
is shorted.
5 CURRENT Control
Adjusts output current from 12 to 29 amps.
6. TORCH Lead Connection
Input for interfacing the torch to the Power Supply.
7. WORK Cable Connection
Input for the work cable on the system.
B. Back Panel
1. AC POWER ON/OFF Switch
ON position supplies AC power to activate all system
circuits. OFF position deactivates circuits.
2. Input Power Cable
Strain relief and input power cable for main AC power
to the unit.
4.04 Getting Started
This procedure should be followed at the beginning of
each shift:
WARNING
Disconnect primary power at the source before as-
sembling or disassembling torch parts, or torch and
leads assemblies.
A. Torch Parts
Check the torch for proper assembly. Install proper
torch parts for the desired application (refer to Section
4.05, Torch Consumable Parts Selection).
NOTE
The power supply will not operate unless the torch
shield cup is fully seated against the PIP (Parts in
Place) pins in the torch head.
B. Input Power
1. Make sure the power source meets circuit protection
and wiring requirements. The unit will operate on
single phase 220VAC ±10%, 50/60 Hz. The ser-
vice must be fused for at least 25 amps.