Specifications SR-100i User’s Manual
Operating Modes
The operating mode of the SR-100i is switch selectable and can either be
mechanized, manual, grate, or insulation. The mode switch is located on the left
side of the power supply. The operating modes are described below.
Mechanized Cutting Mode:
After receiving a plasma start signal, the power supply goes through a gas preflow
sequence, initiates a pilot arc, and then transfers the arc to the workpiece. The
transferred arc sensor provides an x/y machine motion enable signal, which can
be delayed to allow for piercing time. Loss of the cutting arc disables the motion
signal and deenergizes the SR-100i system, even if the plasma start signal remains
enabled.
Manual Cutting Mode:
The starting sequence is the same as that in the mechanized cutting mode.
However, if the plasma start signal remains enabled, automatic restart of the arc is
initiated upon loss of the cutting arc. The motion signal will remain enabled
during the restart and is disabled only when the plasma start signal is removed.
Grate Cutting Mode:
The starting sequence is the same as that in the mechanized cutting mode.
However, it is not necessary to transfer the arc to the workpiece in order to get an
x/y machine motion signal. The x/y machine motion signal is enabled after the
pilot arc is established, but can be delayed using the motion delay potentiometer.
As a result, the cutting sequence can begin over a hole in the grate material or
over the metal itself. The pilot arc relay remains closed so no restarting of the arc
is required between spaces in the metal. The motion signal remains enabled in
spaces between the metal, and is disabled only when the plasma start signal is
removed.
Insulation Cutting Mode:
The insulation cutting mode utilizes the pilot arc for cutting insulating type
material. In this mode, the x/y machine motion signal is enabled after the pilot
arc is established. As in the other modes, the motion enable signal can be delayed
using the motion delay potentiometer. The cutting current is automatically set on
the logic-regulator circuit board, and any front panel current setting is ignored.
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Summary of Contents for SR-100i
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Page 24: ...Installation SR 100i User s Manual SR 100i Figure 3 2 Power Supply Output Connections 3 4 ...
Page 27: ...Installation SR 100i User s Manual SR 100i Figure 3 4 Gas Supply Connections 3 7 ...
Page 37: ...Operation SR 100i User s Manual Figure 4 4 Mild Steel Cutting Chart 30 50 amps 4 9 ...
Page 38: ...Operation SR 100i User s Manual Figure 4 5 Mild Steel Cutting Chart 75 100 amps 4 10 ...
Page 39: ...Operation SR 100i User s Manual Figure 4 6 Stainless Steel Cutting Chart 30 50 amps 4 11 ...
Page 40: ...Operation SR 100i User s Manual Figure 4 7 Stainless Steel Cutting Chart 75 100 amps 4 12 ...
Page 41: ...Operation SR 100i User s Manual Figure 4 8 Aluminum Cutting Chart 30 50 amps 4 13 ...
Page 42: ...Operation SR 100i User s Manual Figure 4 9 Aluminum Cutting Chart 75 100 amps 4 14 ...
Page 59: ...Parts List SR 100i User s Manual Figure 6 1 Control Panel 6 3 ...
Page 60: ...Parts List SR 100i User s Manual SR 100i Figure 6 2 Rear View Inside 6 4 ...
Page 61: ...Parts List SR 100i User s Manual Figure 6 3 Base Top View 6 5 ...
Page 62: ...Parts List SR 100i User s Manual Figure 6 4 Left Side View 6 6 ...
Page 63: ...Parts List SR 100i User s Manual Figure 6 5 Right Side View 6 7 ...
Page 64: ...Parts List SR 100i User s Manual SR 100i Figure 6 6 Rear View Outside 6 8 ...
Page 69: ...Parts List SR 100i User s Manual Chopper P C Board Figure 6 10 Chopper P C Board 6 13 ...