Tweco 1000 Merlin(Sept1999) User Manual Page 26
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INSTALLATION PROCEDURES 22 Manual 0-2731
A-02282
Torch Leads
Secondary Gas
Plasma Gas (+)
Left-Hand Thread
Coolant Supply
Left-Hand Thread
Coolant
Return (-)
Torch Lead Shield
Figure 3-14 Torch Leads Connections
4. Connect the separate shield lead with ring termi-
nal to the mounting stud on the bulkhead panel.
5. Check the torch for proper parts assembly.
CAUTION
The torch parts (gas distributor, electrode, tip, and
shield cup) must correspond with plasma and sec-
ondary selection, output current level, and type of
operation (cutting or gouging). Refer to Section
4.04, Torch Parts Selection.
6. Connect the Torch Supply Leads components to
the Remote Arc Starter (see NOTE).
C. Connecting Torch Supply Leads
WARNING
Disconnect primary power at the source before dis-
assembling the torch or torch leads.
Connect one end of the Torch Supply Leads to the inter-
nal bulkhead inside the Arc Starter Box per the follow-
ing:
1. Remove the cover from the Arc Starter Box if in-
stalled.
2. Feed the four hose assemblies on the Torch Supply
Leads through the boot on the lead end of the Arc
Starter Box. The lead end of the Arc Starter Box
has a boot and control connector installed.
3. Connect the four hose assemblies to the internal
bulkhead per the following figure.
A-02283
Plasma Gas (+)
Left-Hand Thread
Coolant Supply
Left-Hand Thread
Secondary
Gas
Coolant Return (-)
Control
Cable
Figure 3-15 Torch Supply Leads Connections
4. Connect the other end of the Torch Supply Leads
fittings onto the mating connections at the bulk-
head panel of the Plasma Power Supply.
A-02167
Control Cable
Connector
Standoff Control or CNC
Interface Cable
Power Supply
Torch Bulkhead
Figure 3-16 Torch Supply Leads Connection To
Power Supply
5. Connect the control cable connector to the mating
connector on the end of the Arc Starter Box.
6. The Power Supply requires internal changes when
the Optional Remote Arc Starter is to be used per
the following procedure:
a. Open the Front Control/Access Panel.
- Automated Plasma Cutting 1
- Power Supply (CE) 1
- TABLE OF CONTENTS 3
- TABLE OF CONTENTS (continued) 4
- SECTION 1: 5
- GENERAL INFORMATION 5
- 1.03 Publications 6
- 1.04 Note, Attention et 7
- Avertissement 7
- 1.05 Precautions De Securite 7
- Importantes 7
- 1.06 Documents De Reference 9
- 1.08 Statement of Warranty 12
- A. Typical System 13
- Features 14
- Accessories 15
- 2.05 Theory Of Operation 15
- A. Power Source 17
- A. Using Shop Air 18
- High-Pressure Gas Cylinder 20
- System Without Optional 21
- Remote Arc Starter 21
- 3.07 Work Cable And Ground 22
- Connections 22
- Figure 3-9 Coolant Reservoir 23
- 3.10 Lifting Options 24
- A. Mounting Arc Starter Box 25
- B. Connecting Torch 25
- Power Supply 26
- SECTION 4: 29
- OPERATION 29
- C. Gas Control Front Panel 30
- D. Torch Bulkhead 30
- E. Rear Panel 31
- 4.04 Sequence of Operation 32
- L. Ready for Operation 34
- A. Operational Suggestions 36
- B. Fold Back Feature 36
- B. Gas Pre-Flow Delay (SW3) 37
- Logic PC Board 37
- OPERATION 34 Manual 0-2731 38
- SECTION 5: 39
- MAINTENANCE & 39
- CUSTOMER/OPERATOR 39
- C. In-Line Filter Assembly 40
- A. Piloting 41
- B. Torch Standoff 41
- C. Edge Starting 41
- D. Direction of Cut 42
- E. Dross 42
- Basic Troubleshooting 42
- How to Use This Guide 42
- 5.08 Power Supply Parts 47
- Replacement 47
- Coolant Filter Assembly 48
- Coolant Hoses 48
- A. Parts List Breakdown 49
- B. Returns 49
- 6.05 Basic Replacement Parts 50
- 6.06 Options and Accessories 50
- PILOT ARC 52
- GROUNDING DIAGRAM 53
- INTERCONNECTION DIAGRAM 54
- CABLES AND HOSES 55
- 2A, 125 VAC 56
- INTERCONNECTING DIAGRAM 57
- Input Voltage 58
- Manual 0-2731 55 APPENDIX 59
- APPENDIX 56 Manual 0-2731 60
- Manual 0-2731 57 APPENDIX 61
- APPENDIX 58 Manual 0-2731 62
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