100i / 200i / 300i / 400i
Manual PN: 0560956430 OPERATION 81
B. Shield Gases
1. Compressed Air Shield
• Air shield is normally used when operating with air or oxygen plasma.
• Improves cut quality on some ferrous materials.
• Inexpensive - reduces operating costs.
2. Nitrogen (N2) Shield
• Nitrogen shield is used with nitrogen (N2) or Ar/H2 (H35) plasma.
• Provides smooth finishes on nonferrous materials.
• May reduce smoke when used with Ar/H2 plasma.
3. Water Shield
• Normally used with nitrogen.
• Provides very smooth cut surface.
• Reduces smoke and heat input to the workpiece.
• Effective when used with N2 up to 2 inch (50mm) maximum material thickness.
• Tap water provides low operating expense.
Operational Suggestions
1. Wait four minutes before setting the ON/OFF switch to OFF after operation. This allows the cooling fans to run to dissipate
operating heat from the power supply.
2. For maximum parts life, do not operate the pilot arc any longer than necessary.
3. Use care in handling torch leads and protect them from damage.
4. When using water as the shield note the following:
• Use clean drinking quality tap water to help prevent particulate build-up within the system water shield plumbing.
• Particulate contamination and build-up can cause reduced consumable parts life and premature torch failure.
• A cartridge type particulate water filter may help achieve optimum cutting performance.
4.03 CCM Status Codes
NOTE!
See the Appendix for Advanced Troubleshooting
On start-up and during operation, the power supply control circuitry performs various tests. If the circuitry detects a condition
requiring operator attention, the status display on the front panel shows a 3 digit number code preceded by either letter “E”
(currently active fault) or letter “L” (last or latched fault) meaning a fault occurred during the process but is not currently active.
Some conditions can be active indefinitely, while others are momentary. The power supply latches momentary conditions; some
momentary conditions can shut down the system. The indicator may show multiple conditions in sequence; it is important to
recognize all possible conditions that may be displayed.
NOTE!
These tables cover units up to 400A, Lower current units won’t have all the inverter
sections referred to in Group 2. Codes for those sections should not appear.
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