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Calidad de Energía y Sistemas de Iluminación.

Figura 23 Efecto de la Tensión en las Lámparas de Sodio de Alta Presión

2.3 Calidad de Energía y Sistemas de Iluminación.

Utilities | Operator Set-up opens the Operator Set-up window. This window is used to specify how the cutting head and assist gas ports are currently set up (required for the Machine Setup Checking function), and to access various Z-axis setup parameters.

The Operator Set-up window can be opened at any time, and all of the set-up parameters can be edited by the operator user. Note however, that changing set-up parameters while a part program is executing is not permitted. The Operator Set-up window consists of three separate pages or tabs:

Cutting Head Setup •

Assist Gas Setup •

Z-axis Setup •

Cutting Head Setup

The Cutting Head page of the Operator Set-up window is used to enable/disable cutting head set-up checking and to specify how the cutting head is currently set up.

Enable cutting head set-up checking: Check this box to enable cutting head setup checking. If cutting head set-up checking is enabled, then the Machine Setup Checking function will issue a machine set-up error if the current focusing lens or nozzle tip is different than that which is specified by a Process Parameter file used by the active part program. If cutting head setup checking is not enabled, then the Machine Setup Checking function will not check for focusing lens or nozzle tip conflicts.

Installed Lens: This set of buttons indicates which focusing lens is currently installed in the cutting head. If cutting head setup checking is enabled, the operator is required to click the appropriate lens button whenever the lens is physically changed in the cutting head.

Installed Nozzle: This field indicates which nozzle tip is currently installed in the cutting head. If cutting head setup checking is enabled, the operator is required to select the matching item from the nozzle list whenever the nozzle is physically changed in the cutting head.

Nozzle List: The list of available nozzle tips is just below the “Installed Nozzle” field. The operator can edit the nozzle list if needed. This manual shows the factory-supplied list. To change the installed nozzle setting or edit the nozzle list, first click the “Change” button. Three new buttons, “Select”, “Add” and “Remove” will then appear (see figure).

To change the installed nozzle setting, select the desired nozzle from the list, then click “Select”. •

To edit the nozzle list, click “Add” to insert a new nozzle into the list or “Remove” to delete a nozzle from the list. •

Clicking a selected nozzle list item a second time will activate a single line editor, which can be used to modify that nozzle description. A nozzle description can be any combination of alpha and numeric characters up to 32 characters in length.

Assist Gas Setup

Assist Gas Port Configuration: This is the assist gas port map, which is where each assist gas port is associated with a specific type of gas. The assist gas port map consists of a drop-down list for each assist gas port. Use this map to specify which assist gas is currently connected to each port.

Z-axis Setup

The Z-axis Setup page of the Operator Set-up window contains configuration settings related to the Z-axis that the operator may want to change as part of normal machine operation.

Drift Compensation

Changes in the cutting environment can cause standoff accuracy to degrade over time. Drift Compensation is a function that re-calibrates the standoff after every pallet exchange, to correct for standoff drift. This function can operate in one of three modes:

Off: The Drift Compensation function is disabled

Enable Auto Comp: In this mode, the CNC control will automatically check nozzle standoff after each pallet exchange. The cutting head moves to the machine coordinates specified in the “Sheet Location” fields and performs a Standoff Calibration move, as described in NOZZLE STANDOFF CALIBRATION in the CALIBRATION AND ADJUSTMENTS section. Any error detected becomes the new compensation amount or “offset”. For example, if the nozzle is 0.002 inch (0.05 mm) lower than required for a 0.050 inch (1.27 mm) standoff, the control will compensate by commanding 0.052

inch (1.32 mm) standoff. The control uses the new offset value until the load pallet moves into the cut position.

Lower Pallet Offset: The CNC control will automatically compensate the standoff when cutting on the lower pallet, by the amount specified in the “Lower pallet offset” field.

Note: To determine if lower pallet compensation is necessary, first set Drift Compensation to “OFF”, and then check standoff calibration on both pallets, beginning with the upper pallet. If the procedure indicates any difference in calibration between the two pallets, select “Lower pallet offset” and enter the difference in the field. Recheck calibration on both pallets and restore Drift Compensation to “ON” if desired.

Automatic M47

This feature helps to protect the cutting head during high-speed moves. The control “looks ahead” to see if the next X/Y rapid move is longer than the distance specified in the “Minimum G00 distance” field. If the next rapid move is too long, the control raises the cutting head as the X- and Y-axes begin to move. When the X- and Y-axes approach the end of the move, the cutting head moves down, to be in position for the next cut. (The Z-move is trapezoidal)

Z-up Distance: The distance that the head retracts during Automatic Partial Z-up moves.

Minimum G00 Distance: If the length of the X/Y rapid move exceeds this value, the head will automatically retract. Otherwise, the head will track the material during the rapid move.

Note: To disable Automatic Partial Z-up moves, enter a large Minimum G00 Distance (for example, 999 inches or 25000 mm).

Resume Distance to Cut: When the distance remaining in a long rapid move is equal to or less than this value, the control commands the cutting head to resume tracking.

Default Partial Z-up Distance (M47): The Z-axis raises the nozzle this distance when the program commands M47. The default value of 0.800 inches (20 mm) is sufficient to clear material clamps. However, some applications may require higher distances in order to avoid tipped parts or slugs.

Note: The program can override this default by specifying a distance with the ‘P’ argument in the M47 block. Refer to M Codes in the LASER NC PROGRAMMING section for more on M47.

Hold Mode

HOLD in JOG: When this button is selected, the cutting nozzle remains locked at its current vertical position during all jog moves, i.e., the cutting head does not track the material height.

Note: X-axis and Y-axis jog motion will not be allowed unless the nozzle is at least 2.0 inches (50.8 mm) above the top of material.

TRACK in JOG: When this button is selected, the cutting nozzle position will change during jog moves as necessary to maintain the last commanded standoff. This is the default Jog mode.

Auto Focus Home Offset

For Laser Systems equipped with the Auto Focus cutting head system, the Z-axis Setup window includes parameters for Auto Focus home offset. See the Auto Focus Cutting Head section for a description of these parameters.

Toolbar Shortcut:

Keyboard Shortcut: { Alt, U, O} sequence

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