Acu-Rite Control System MILLPWRG2 User Manual

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4.1 Tool Table
Editing an existing tool
To edit an existing tool is similar to adding a new tool using the same 
dialogues.
Highlight the desired field of the tool to be changed.
Type in the new value, then press the ENTER key.
When all changes have been made, press the Exit soft key.
When running G-code program’s tool block, or a MILLPWR
G2 
conversational program’s tool step specified by tool number, the tool 
data is provided from the tool table. As an example, running a G-code 
T1 M6 block prompts the operator to load tool 1 into the spindle. The 
tool length, diameter, type, and plunge angle are retrieved for tool #1 
in the tool table, and used to adjust the tool path and Z axis position.
Tool table structure 
Tool table: Standard tool data
Only add the tool diameter and length if it is repeatable 
each time it is selected.
Abbr.Inputs
ToolNumber by which the tool is called in the 
program (e.g. tool 2 = T2).
DiameterCompensation value for the tool diameter D. 
LengthCompensation value for tool length L.
TypeTool type:  A popup menu appears where you 
can select the type of tool being used.
Plunge AngleAngle of plunge cut. 
						

							724 Tool Table
4.2 Tool Data
4.2  Tool Data
Tool-length offsets
Tool-length offset is the distance from Z0 Machine Home to the tip of 
the tool at the part Z0 (the surface of the work). 
Tool-length offsets allow each tool used in the part program to be 
referenced to the part surface. In an idle state, the MILLPWR
G2 does 
not have a tool-length offset active. Therefore, Tool #0 (T0) is active. 
When T0 is active, all Z dimensions are in reference to the Z Home 
position. When you program T1, all Z dimensions become referenced 
to the surface on which the tool-length offset of Tool #1 was activated.
For machines that do not have a Z axis automatic homing feature, you 
must set the Z0 position of the Z axis. Usually, it is the fully retracted 
(Up) position of the quill or machine head. Tool-Length Offsets are 
referenced to this position.
Because tools differ in length, Z0 axis (Part Zero) is not set the same 
way as X0 or Y0. The tool-length offset is the distance from the tip of 
the tool to the top of the part. Enter a length offset for each tool in the 
Tool Table. 
With tool-length offsets active, the Z axis position display reads 0.00 
when the active tool moves to Part Zero. Tool-length offsets simplify 
programming.
Teaching tool length offsets in the tool table
The Tool Length Offset data is placed in the “Length” column in the 
Tool Table.
Activate the Tool Table by pressing the SETUP key from DRO mode.
hen press the Tool Table soft key.
Select the tool number that is to be edited.
Use the ARROW keys to highlight the “Length” column field.
With the tool in the spindle, move the tool down until it touches the 
top surface of the work piece.  This is referred to as “Part Zero”.
Press the Teach soft key.  The MILLPWRG2 calculates the tool 
length offset for the selected tool putting the data in the length 
column. 
						

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4.2 Tool Data
Diameter offset in tool table
When you activate a tool, you automatically activate the length offset 
and diameter values recorded on the Tool Table (DRO mode only 
activates a tool when GO is pressed). When a tool is activated, the 
length offset is applied immediately to provide an accurate Z axis 
position display. 
The active diameter value is important when you program 
compensated moves and use cycles with built-in tool compensation. 
If tool diameter is correct, compensated moves and cycles are 
performed accurately.
Enter tool-length offsets and tool diameter values on the numbered 
lines of the Tool Table. The numbered lines on the Tool Table identify 
the tool number (T-Code) that activates those values.
On machines equipped with collet-type tool holders, it is impractical to 
use the Tool Table to store tool-length offsets. You can set tool-length 
offset at tool change. Tool Table diameters are still required for 
compensated moves and when using cycles that have built-in 
compensation. 
						

							744 Tool Table
4.2 Tool Data
Tool radius offset
Tool radius offset is available with the MILLPWRG2. The tool center 
moves in the working plane along the programmed path or to the 
programmed coordinates. When programming a part profile, the path 
of the tool is a half of a diameter away from the depth of the cut.
Offset the tool to the right-hand or left-hand of the cutting edge. 
“Right” or “Left” refers to the side of the cutting edge to which the 
tool offsets. Program tool offset as Right or Left according to the 
desired cutting edge.
Moving without radius offset
The tool center moves in the working plane along the programmed 
path or to the programmed coordinates. Program tool offset as Center 
when no radius offset is needed.
Applications: Drilling and boring, pre-positioning. 
						

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4.2 Tool Data
Machining with radius offset
The tool center moves along the contour at a distance equal to the 
radius. “Right” or “left” are to be understood as based on the 
direction of tool movement along the work piece contour as viewed 
from behind a moving tool. 
						

							764 Tool Table
4.2 Tool Data
Radius offset: machining corners
Outside corners:
A programmed path around the outside corners on a transitional arc 
should have the feed rate at the outside corners reduced to relieve 
machining stress. Typical for any great changes of direction.
Inside corners:
The operator must program the MILLPWR
G2 for the intersection of 
the tool center paths at inside corners. From this point it then starts 
the next contour element. This prevents damage to the work piece. 
The permissible tool radius, therefore, is limited by the geometry of 
the programmed contour.
Danger of collision!
To prevent the tool from damaging the contour, be careful 
not to program the starting or end position for machining 
inside corners at a corner of the contour. 
						

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Program Overview 
						

							785 Program Overview
5.1 Programming Introduction
5.1  Programming Introduction
Program display mode
If the console has the Calculator active while in DRO mode, exit from 
Calc by pressing the Calc key, returning the MILLPWRG2 to DRO mode. 
From DRO mode, press the DRO/PGM  key, and the 
display changes to PGM mode. If a program is loaded, 
it will be displayed, otherwise the display screen will 
be blank.
The program display provides soft keys for program selection, 
creating, editing, and running functions. The Clear Program soft key 
will exit out of a current loaded program. The system Shutdown soft 
key is provided on the PGM mode display the same as it is on the DRO 
mode display. The Program Functions soft key provides access to 
program management features.
Display area
Programming functions, graphics, and soft keys are provided in the 
display area. Each soft key is activated by pressing the corresponding 
hard key located directly below it.
Program Functions can not be accessed when the 
Calculator is active in DRO mode.
1Status Bar displays the servo motor status Stop/Run/Pause, 
Time, loaded Tool (blank if none is selected), Datum, Scale, Skew, 
and unit of measure selected (inch/mm). 
2Graphic display window of the current loaded program. If a 
program is loaded, a graphical simulation is shown.
3Operator Intervention Message (OIM) provides prompts, and 
messages to the operator.
4Soft keys display area. The soft keys change per the function that 
is selected. They are activated by the associated hard key that is 
directly below it. When a soft key appears as being pressed in, it 
is activated and its text is yellow.  When a soft key is grayed out, 
it is not available for the current program function.
5The name of the current loaded program is displayed above the 
program steps display.
6The program display window displays the program steps of the 
current loaded program.   
						

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5.1 Programming Introduction
Program function screen
The Program Function screen displays several windows, and soft keys 
which are defined in the contents of this chapter. The display area 
window is briefly described in the following table. The Program 
Functions soft key provides access to Network or USB memory 
devices by pressing the Folder View soft key. The features of this soft 
key are explained on the following page.
Press the Program Functions soft key to access 
programs stored in the Console, on a Network, USB 
memory devices, or to create a new program.
The Program Functions screen displays all programs that are stored in 
a selected folder.  The default storage folder for the console is v:\user\. 
General Information and the programming steps of the highlighted 
program are displayed in the lower left window [3], for a quick access 
review. If a program has ran in its entirety (without errors), graphic 
preview [2] is also displayed.
Folder view
The Folder View soft key includes additional access to the user. The 
Folders Tree [9]is displayed which allows the user to access different 
folders, and narrow a search to selected program types.
Access to Network or USB memory devices is available in the Folders 
Tree.
The Folder View soft key stays active until it is pressed again.
1Available soft keys.
2Program graphic preview.
3Program steps preview.
4Current folder selected (number of programs within selected 
folder of the active program type).
5Constant status bar.
6List of all the programs stored in the current location (or folder).
7Folder navigation history.
8Free space available on the current drive.
9Shows the type of programs being displayed (e.g. MILLPWRG2, 
or G-Code programs to be displayed; or DXF files).
10Displays the current program loaded.
11The Folders Tree can be used when connected to a network, USB 
memory devices, or folder management. 
						

							805 Program Overview
5.1 Programming Introduction
The MILLPWRG2 can save programs to a USB device, or to network 
drive (e. g. a PC) as well as to the MILLPWRG2 User folder.
To return to the Program Display Mode:
From Folder View, press the  Folder View soft key to 
exit back to the Program Functions display.
Press the  Exit soft key to exit back to Program Mode.
Program drawing view W
hile a program is running (or being created), individual steps being 
performed are gr
aphically shown as they are being run or created. 
Pressing the  VIEW hard key shows the View Setup dialogue. The  VIEW 
key acts as a toggle switch, pressing  it again will remove the dialogue 
and return to the previo us display.  Pressing CANCEL  or USE will also exit 
the view soft keys.
To activate the View Setup dialogue press the  VIEW 
key. The View dialogue is explained on page 86. 
To return to the previo us display, press the VIEW key 
again, or the  USE key. 
If the  CANCEL  key is pressed, it will exit out of the view 
mode, and return to the previous display, but will not 
cancel out any view changes made. 
The internal memory of the MILLPWRG2 is organized into 
a folder structure. The default folder is the User folder. 
Programs can be stored in the User folder. Additional 
folders can be created to better organize programs. 
Features in Program Functions allow for navigation of all 
folders, USB memory devi ces and network folders.