82 EDGE Pro Ti CNC Instruction Manual 807660
Installation
Plasma connection
Plasma interface assembly (228256)
The plasma interface assembly (228256) is installed in between the CNC and any plasma system that does not have a
built-in voltage divider.
The plasma interface board (141267) is part of the plasma interface assembly (228256). I/O and arc voltage signals are
transmitted through this interface board between the CNC and plasma system. Connect the wires that exit the assembly
to the appropriate connectors within the plasma system.
If your plasma system has instructions for mounting the plasma interface assembly, use those instructions. If you have no
instructions for mounting the assembly, install it as far as possible from the control board, preferably with sheet metal
between them.
To make connections between the plasma cutting circuit and the plasma interface assembly:
• Use qualified service personnel only.
• Turn OFF and disconnect all power.
• Mount the plasma interface assembly (228256) as close as possible to the entry point to the plasma
system. Permanent connection is recommended.
• Use jacketed cables and wire that are appropriate for your installation and your local and national
safety regulations.
Follow these steps:
1. Verify that the outer jacket of each interconnecting cable is protected from damage at the entry point to the plasma
system. A strain relief is recommended.
2. Verify that the outer diameter of the interconnecting cable fits the strain relief that is provided with the plasma
interface assembly:
• Plasma start, transfer grip: 2.895 mm – 6.350 mm (0.114 in. – 0.250 in.) diameter
• Plasma interface grip: 1.625 mm – 5.334 mm (0.064 in. – 0.210 in.) diameter
3. Strip back the outer jacket and individual conductor insulation as needed.
4. Insert the outer jacket cable through the strain relief and make connections.
5. Verify that the outer jacket is a min. of 2.54 cm (1 in.) inside the 228256 and tighten the strain relief(s).
6. Before operating the equipment, verify that the connections are correct and that all live parts are enclosed and that all
jacket/conductor insulation is protected against damage.
WARNING!
HAZARDOUS VOLTAGE AND ENERGY
The plasma interface signals from plasma cutting equipment without an internal voltage
divider are directly connected to the plasma cutting circuit output. To prevent electrical
shock and energy hazards, wiring from the plasma cutting circuit of the plasma system to
the plasma interface (228256) must be enclosed or protected.
The wiring from the plasma cutting circuit to the plasma interface (228256) must be
enclosed or protected for safe operation. The plasma cutting circuit output ratings are
printed on the data plate and vary by manufacturer and model up to 500 VDC and 400 ADC.
Contact with metal live parts of this connection under normal operating and fault
conditions can result in death or burns.
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