ACU-RITE VRO 300T User Manual

VRO 300T

™

REFERENCE MANUAL

Readout Parameter Access Code

An access code must be entered before machine-related parameters can be set or changed. This prevents inadvertent adjustments to the setup parameters.

IMPORTANT

The access code is 8891

Refer to the Setup section. Begin by pressing the softkey. Press the 8, 8, 9, 1, and

SETUP

key, then the

ENTER

keys. The readout is now

ready for machine parameter setting operations.

IMPORTANT

Supervisors may wish to remove this page from the Reference manual after initially setting up the readout system. Retain in a safe place for future use.

INSTALLATION

SETUP

Warranty

ACU-RITE Products and accessories are warranted against defects in material and workmanship for a period of three years from the date of purchase. ACU-RITE will, at its option and expense, repair or replace any part of the ACU-RITE product that fails to meet this warranty. This warranty covers both materials and factory labor. In addition, authorized ACU-RITE service representatives will provide service labor (field service) for a period of one year at no charge. Notice of the claimed defect must be received by ACU-RITE within the warranty period.

This warranty applies only to products and accessories installed and operated in accordance with this reference manual. ACU-RITE shall have no obligation, with respect to any defect or other condition caused in whole or in part by the customer’s incorrect use, improper maintenance, modification of the equipment, or by the repair or maintenance of the product by any person except those deemed qualified by ACU-RITE.

Responsibility for loss of operation or diminished performance due to conditions beyond ACU-RITE’s control cannot be accepted by ACU-RITE.

The foregoing warranty obligations are in lieu of all expressed or implied warranties. ACU-RITE INCORPORATED shall not be liable under any circumstances for consequential damages.

30 Day Red Carpet Warranty

All ACU-RITE products are covered by a 30-day Red Carpet Warranty. If in the first 30 days this product fails for any reason, repack it in the original packaging materials and contact your Authorized ACU-RITE Distributor for return procedures.

Table of Contents VRO 300T

Introduction..................................................................................................................... 1

A Tour of the Readout..................................................................................................1

Front and Back Views...............................................................................................1

Connections..............................................................................................................2

Keypad...........................................................................................................................3

Display...........................................................................................................................4

Readout and Program Displays................................................................................5

Power-On Position Recovery......................................................................................6

Position-Trac ............................................................................................................6

Readout Operations....................................................................................................... 7

Clear Key.......................................................................................................................7

Absolute and Incremental Displays ...........................................................................7

Absolute Display.......................................................................................................7

Incremental Display..................................................................................................7

Radius / Diameter Displays..........................................................................................8

Zeroing the Displays ....................................................................................................9

Absolute Zero...........................................................................................................9

Incremental Zero.....................................................................................................12

Presetting....................................................................................................................13

Absolute and Incremental Presets..........................................................................14

Presetting Using the POS Key................................................................................14

Near Zero Warning .....................................................................................................15

Tool Offsetting............................................................................................................16

Program Operations ....................................................................................................17

Creating a Program....................................................................................................17

Tool Steps...................................................................................................................18

Position Steps.............................................................................................................19

Saving and Loading Your Programs ........................................................................20

Alphabet Entry........................................................................................................21

Running a Program....................................................................................................22

Tool Steps ..............................................................................................................22

Position Steps.........................................................................................................22

Teaching a Position....................................................................................................23

Other Features.............................................................................................................. 24

Calculator....................................................................................................................24

Printing........................................................................................................................27

Remote Interface ........................................................................................................29

Requesting Information...........................................................................................29

Keypad Commands................................................................................................30

Job Clock ....................................................................................................................31

Reference Tables........................................................................................................31

VRO 300T Table of Contents

Setup ..............................................................................................................................32

Job Setup....................................................................................................................33

Setting Up the Tool Library.....................................................................................33

Defining Tools with Auto-Offset ..............................................................................33

Display Resolution..................................................................................................35

Near Zero Warning.................................................................................................35

Linear Error Compensation.....................................................................................36

Anchoring the Segments........................................................................................37

Compensation Entry Methods................................................................................38

Feed Rate Units......................................................................................................41

Remote Switch.......................................................................................................41

Vectoring ................................................................................................................42

Scale Factor ...........................................................................................................43

Job Clock................................................................................................................43

Installation Setup........................................................................................................44

Display Configuration..............................................................................................44

Encoder Setup........................................................................................................45

Serial Port...............................................................................................................46

Parallel Port............................................................................................................47

Protection ...............................................................................................................47

Installation .....................................................................................................................48

Readout Specifications ...............................................................................................50

Troubleshooting........................................................................................................... 51

This symbol alerts you to the fact that important information concerning the installation and operation of this readout has been included in this manual.

VRO 300T

Keep these instructions in a secure place for future reference.

VRO 300T Introduction

Introduction

ACU-RITE’s VRO 300 readout series provides the application-specific features required for you to obtain the most productivity from your manual machine tools.

The VRO 300T is designed specifically for turning applications. Special features include tool offsetting, axis lock (hold), programming, and vectoring.

A Tour of the Readout

Front and Back Views

RAD

ABS

DIA

INCR

POS

TOOL

INFO MM SETUP CALC

7 8 9 4 5 6 1 2 3

0 +/-

CLEAR ENTER

Z1 Z2

ZERO

PGM

DRO

CONTRAST

PN 200x00x

SN 9766554

INPUT 6

INPUT 4

INPUT 2

EDGE FINDER

SERIAL PORTPARALLEL PORT

CFI

TOUCH PROBE

EXT VIDEO

PENDANT

INPUT 5

INPUT 3

INPUT 1

P1P3

Introduction VRO 300T

Ground wire

Remote switch

Parallel (printer) Encoder inputs

Electronic edge

Model number and Serial number

Touch probe input

Serial (RS-232) port

Control function

interface port

Connections

External video

connection

CONTRAST

EXT VIDEO

PENDANT

PARALLEL PORT

output

(pendant) input

Power switch and

voltage selector

finder input

EDGE FINDER

SERIAL PORT

CFI

TOUCH PROBE

PN 200x00x SN 9766554

INPUT 6

INPUT 4

INPUT 2

port

INPUT 5

INPUT 3

INPUT 1

VRO 300T Introduction

Selects absolute or

Selects radius or

English / metric

System setup

System

and help

Application-specific

Begin a preset

Zero an axis

Move up or

screen

Lets you switch

Enter all numeric values

Handy

functions

Keypad

incremental display

diameter display

information

ABS

INCR

RAD

DIA

INFO

ZERO

conversion

SETUP

TOOL POS

function keys

parameters

with these

87 9

CALC

down on the

ZERO

between

programming and

Digital ReadOut

displays

PGM

DRO

54 6 21

. 0

CLEAR

+/-

ENTER

calculator

Introduction VRO 300T

213

342

Display

The 9” CRT display screen is divided into four sections.

Status bar – displays the feed rate, current tool, scale factor, the job clock, and inch/mm status.

Information screen – displays information for the task being performed.

• Used as a readout, the screen will display the current position for each axis.

• When programming, the program steps will be displayed.

Message line – operator prompts and messages will appear here. Softkeys – variable functions appear here; functions are selected by

pressing the hard key directly below the softkey.

VRO 300T Introduction

Readout and Program Displays

The

DRO

and

PGM

keys switch the display between the digital readout (DRO)

display and the program (PGM) display. In the DRO display, all standard readout operations are available. The display

can show up to four axis positions simultaneously. If you use more than four, press the

OTHER AXES

softkey to view the other axes. Softkeys for zeroing and

presetting these other axes will also appear. In the PGM display, you can create and run programs. Many of the readout

operations are still available. All six possible axis positions can be displayed at the same time in this view.

DRO

PGM

Introduction VRO 300T

Power-On Position Recovery

Position-Trac

Certain ACU-RITE encoders, such as the ENC 150, contain closely-spaced reference marks that enable the display to show the correct position after a power interruption. The readout will indicate when power has been lost, and will prompt you to move each axis until a reference mark is located. By traversing the reference marks once in each axis, you will re-establish the display position relative to the last known zero. The most you will ever have to move an axis is about one inch. You must move in a positive count direction.

If you use an encoder that does not have the Position-Trac feature, the procedure for recovering your position is slightly different. Reference marks on these encoders are about 8 inches apart. You must find a convenient reference mark and then use the same mark every time.

1. Move near the desired reference mark.

2. Press the

3. Move slowly past the reference mark until the readout recalls

key.

its position. You must move in a positive direction.

VRO 300T Readout Operations

tool is here.

Large display shows

Readout Operations

Clear Key

Use the

CLEAR

key to erase digits that you have entered by mistake or to take

you back if you’ve pressed an incorrect function key.

Absolute and Incremental Displays

The tool is positioned at

Absolute Display

-1.625 ABS.

Shows the distance from your current position to absolute zero.

Z -1625 ABS

Incremental Display

Shows the distance from your current position to the incremental zero. An incremental zero is set when you preset a dimension, or when you zero the incremental display.

Incremental zero:

the incremental

display will read

0.000 when the

-1.625

Absolute Zero, also called datum or Workpiece Zero.

-0.6251.000

Absolute zero

Z 1.000 INCR

ABS INCR

Z -0.625 ABS

You can always see both absolute and incremental positions at the same time.

absolute position

ABS

INCR

incremental position

Readout Operations VRO 300T

Radius / Diameter Displays

Pressing the as a diameter.

RAD

key lets you view the part dimension either as a radius or

DIA

1.250 DIA

RAD

0.625 RAD

DIA

VRO 300T Readout Operations

Shortcut

If you want the absolute zero to be

If you want the absolute zero to

Zeroing the Displays

Absolute Zero

On many prints, the dimensions are measured from one or two surfaces of the part. By setting the readout’s absolute display to zero at a wellchosen surface, you can enter the part’s dimensions directly from the print, using absolute presets.

Setting Absolute Zero at the Current Position

1. Move to desired location.

2. Make sure that the absolute position is displayed.

3. Zero the appropriate axis.

Setting Absolute Zero with a Tool

Longitudinal Axis

1. Touch the tool to the face of the workpiece.

ZERO

ENTER

3.00

1.75

Absolute zero

ABS

INCR

ABS

ZERO ZERO

1.00

2. Make sure that the absolute position is displayed.

3. Press the

4. Enter the tool position.

be on the face of the workpiece:

ZERO

key for the appropriate axis.

ABS

INCR

ZERO

1 2 5

ABS

ENTER

offset from the face of the workpiece:

1.250

Readout Operations VRO 300T

Crossfeed Axis

1. Touch the tool to the diameter of the workpiece.

1.25

ABS

2. Make sure that the absolute position is displayed.

INCR

ABS

3. Press the

ZERO

key for the appropriate axis.

ZERO

4. Enter the tool position—either as a radius or as a diameter,

depending on the display.

1 2 5

ENTER

VRO 300T Readout Operations

If you want zero offset from If you want zero on the

Setting Absolute Zero with the Tool under Load

Longitudinal Axis

1. Make sure that the absolute position is displayed.

2. Machine the face of the workpiece.

3. While the tool is still contacting the

workpiece, press the

LOCK AXIS

softkey. The readout will lock this tool position in the

ZERO

key for the appropriate axis, then the

ABS

INCR

display, even if you move the tool.

4. Move the tool away and measure the face location, if required .

.83

ABS

5. Enter the face location.

ENTER

face of the workpiece

8 3

the face of the workpiece

ENTER

Readout Operations VRO 300T

Crossfeed Axis

1. Make sure that the absolute position is displayed.

2. Machine the diameter.

3. While the tool is still contacting the

workpiece, press the appropriate axis, then the

ZERO

key for the

LOCK AXIS

softkey. The readout will lock

ABS

INCR

ABS

this tool position in the display, even if you move the tool.

4. Move the tool away and measure the diameter.

Dia = 1.05

5. Enter the diameter.

1 0 5

ENTER

This puts the zero on the workpiece centerline

Incremental Zero

From the readout incremental display, press the incremental display to zero at the current tool position.

ZERO

key. This sets the

VRO 300T Readout Operations

Presetting

When you preset a dimension, the readout places an incremental zero at the location you specify. Then, the display automatically switches to the incremental display so you can move to zero.

Begin a preset by pressing an axis key (X for example). The information from the previous

preset will appear. The display will show you if the preset is absolute or incremental. Use the to change from one to the other. Enter the

dimension you want to preset.

ABS

INCR

key

Absolute Zero

The tool is at 0.000 ABS.

To preset the absolute location of the shoulder:

Incremental zero: the

incremental display

will read 0.000 when

the tool is at this

point.

+/-

Z 1.625 INCR

ABS

INCR

Z 0.000 ABS

-1.625

Z 0.000 ABS

2 5

6.1

Display automatically

switches to incremental.

Absolute display reads zero.

1.625

ENTER

Now the tool is

1.625 on the

positive side of the

shoulder.

Readout Operations VRO 300T

When you enter an absolute preset, it

Absolute and Incremental Presets

To maintain the best tolerance and to minimize the chance for errors, use

• absolute presets for absolute dimensions

• incremental presets for incremental dimensions.

does not matter where the tool position is. The VRO 300T calculates the desired location automatically.

The display shows this.

3.00

1.75

1.00

ABS

INCR

ABS

+/- 1

+/-

.1 0

.Z1 5

ENTER

ABS

+/-

3 . 0

ENTER

When you enter an incremental preset, the tool must be positioned at the place you are dimensioning from.

0.751.25

1.00

ABS

ABS INCR

INC

+/-

INC

+/-

1 . 5

.1 0

.Z1 5

ENTER

2+/-

ENTER

Presetting Using the POS Key

You can enter a preset using the once. Refer to page 19 for information on how to complete the Position Step.

When you have completed the position step, press the execute the preset operation.

POS

key for as many as four axes at

RUN

softkey to

VRO 300T Readout Operations

Near zero

Zero is here

Near Zero Warning

When you are moving to zero, the readout can “warn” you when you are getting close. This allows you to machine faster and avoid overshooting your desired location.

You can set the near zero range in Setup.

Near zero range:

the indicator

appears when you

are within the range

indicator

Readout Operations VRO 300T

Tool Offsetting

The VRO 300T can store the dimensional offsets for up to 100 tools. When you change a workpiece and establish the absolute zero, all the tools are automatically referenced to the new zero.

0 1 2 3 98...

To select a tool, press the

USE

softkey. The new tool number appears in the status bar, and the

current position is changed to reflect the new offset values.

If you want to select the tool from the Tool Library, press the

TOOL

LIBRARY

arrow keys to move to the desired tool, and press the

ENTER

key to select it.

TOOL

key, enter the tool number, and press the

softkey, use the

TOOL

NUMBER

OFFSET X Z1

SET TOOL

-1.2540

0.5210

VRO 300T Program Operations

Program Operations

A program is a list of tool changes and position presets that you can save for later use.

Creating a Program

Name

Steps

PGM

key, and the program view screen appears.

Axis Position Displays

Press the

Program

You create a program by entering a list of the steps in the order you want to do them.

• To create a new step, press either the

TOOL

or the

POS

key. Then

enter the information describing the step into the form, and press the

USE

softkey to accept the data. This updates the program and moves

down for the next step.

• To change a step, use the arrow keys to move to the step, and press

USE

ENTER

. When you have made your changes, press the

USE

softkey to accept the changed step back into the program.

• To delete a step, move to the step and press the

CLEAR

key.

• To insert a step, move to where you want the new step to go, and press the

TOOL

POS

key. The new step is inserted and the following steps

will move down.

If you decide not to use a step that you have already selected, press the

CANCEL

softkey.

Program Operations VRO 300T

Tool Steps

Put this step in your program whenever you need to use a different tool. Press the

key to bring up the Set Tool form.

TOOL

SET TOOL

NUMBER 2

TOOL—enter the tool number. When you press

ENTER

, the offset information from the Tool

OFFSET X Z1

Library is displayed. OFFSET—displays the offset information. You

can change this in Setup.

Press the

TOOL

softkey if you want to select a tool directly from the Tool

LIBRARY

Library. Use the arrow keys to select the tool, and the selected tool into the Tool Step.

ENTER

key to put the

-1.2540

0.5210

VRO 300T Program Operations

We’ll use 2 Position Steps to make

Position Steps

This step lets you program a positioning move. You can preset up to four axes at once. The dimension in each axis can be absolute or incremental.

POINT—press an axis key to specify which direction you wish to move. Enter the dimension. If the dimension is incremental,

press the

ABS

key and enter the number of

INCR

the step you want to reference. The reference step must precede the current step in the program.

Use the arrow keys or the

ENTER

key to

move from one axis to another.

Example

3.00

1.25

1.50 DIA

3.00

1.00 DIA

Absolute Zero

POS

this part. This example assumes that the X axis reads in diameter and that Step 001 is a tool step.

POINT X Z1

3+/- .

POSITION003

1.000

1.250

ENTER

ABS INCR

002

1.50 DIA

Incremental Zero,

position step 002

1.25

Incremental Zero,

position step 003

1.0

DIA

X 1 . 5

USE

This becomes Step 002. It will be the reference step for Step 003.

POS

X 1 . 0

.1 2

ABS

5 2

INCR

USE

This becomes Step 003. Notice that the Z dimension is measured incrementally from Step 002.

ENTER

Program Operations VRO 300T

Saving and Loading Your Programs

Programs can be saved in the VRO 300T. If a program is saved, it is safe from power loss. Saving and other program functions are found by pressing the

PROGRAM

FUNCTIONS

softkey.

PROGRAM

FUNCTIONS

To save a program, press or use the

ALPHABET

softkey to select alphabetic characters. When you have

named the program, press

To run or edit a saved program, press the to select the program name, and press

To clear a program which is currently on the screen, press the

CLEAR

PROGRAM

SAVE DELETE CANCELLOAD

SAVE

ENTER

RUN

. Name the program using the numeric keys,

SAVE

ENTER

LOAD

softkey. Use the arrow keys

CLEAR

PROGRAM

softkey. This does not delete any programs which have been saved; it simply clears the program from the display.

To delete a program which has been saved, press the the program name, and press

DELETE

again.

DELETE

softkey, move to

The VRO 300T will ask you for confirmation

before you clear or delete a program.

VRO 300T Program Operations

Alphabet Entry

When you need to enter alphabetic characters, press the

ALPHABET

the alphabet box appears.

ALPHABET

A B C D E F G H I J K L M N O P Q R S T U V W

X Y Z

Use the softkeys to move around the alphabet, and the

ENTER

key to select a

letter.

UP ALPHABET DOWN RIGHTLEFT

You can mix alphabet characters with numerals from the keypad.

softkey and

Press the

ALPHABET

softkey again to clear the alphabet box.

Program Operations VRO 300T

Running a Program

To run a program, move to the first step and press the must now execute the step and, when you are done, press the

RUN

softkey. You

softkey

to run the next step. You can run a program starting from any step; just move to the step you

want to start with and press

RUN

. Remember that Position steps are

normally preceded by a Tool step that is required to calculate the correct tool offsets.

Tool Steps

If the step is a Tool step, the new tool offsets are used and the new tool number is indicated in the status bar. Check the tool that you are using and change it if necessary.

Position Steps

If the step is a Position step, the programmed position is automatically preset into the axis displays. The axis display is switched to incremental. You can now move to zero in each axis.

VRO 300T Program Operations

Teaching a Position

To teach a position to the readout as you are making a part, select a step as you normally would. In any field where a position is needed, instead of entering numeric position values, machine to the position that you want to

enter, then use the

position values are used.

Example

The Position step below needs to have the Z1-axis entered.

TEACH POSITION

softkey to enter the position value. Only absolute

Press the

TEACH POSITION

softkey and

the absolute position from the Z1 display is automatically placed in the Z1 field.

Calculator VRO 300T

Other Features

Calculator

The four-function calculator keys,

+ - x

are available when you

are in any numeric data entry field. Just use these keys as you would any calculator.

The keys will act on a number that is already in the field. For example, if you move to a field which already has a value of 3.125, and you want to double it,

just press

ENTER

to get 6.250.

When you have more than one calculation in a field, the calculator will perform multiplication and division before it does addition and subtraction.

This means that you can enter

+3 1 8

to get three and one-

eighth (the 1 ÷ 8 is done before the 3 is added). The VRO 300T can calculate trig functions, taper angles, and turning speeds.

Press the

Trig Functions

CALC

key, and the following softkeys appear.

TRIG TAPER RPM CANCEL USE

When you’re entering data for a position function, you may need to calculate dimensions using the trig calculator. Press the

TRIG

softkey, and the

following function softkeys are shown.

SHIFT

SQR ROOT

SQR

SIN

ARC SIN

COS

ARC COS

TAN

ARC TAN

Most of the calculator softkeys are divided in half. At first, the top half is “active”, while the bottom half is “inactive”. Press the

SHIFT

softkey and the

bottom half of the calculator options becomes active.

SHIFT

SQR ROOT

SQR

SIN

ARC SIN

COS

ARC COS

TAN

ARC TAN

Typically, a result is calculated by entering a number and then selecting the appropriate math function. For example, to enter a number whose value is

the square root of 2, press

CALC

, 2,

TRIG

(the square root of 2) will be displayed. Press

, and

SQR ROOT

USE

. The value 1.4142

to accept the value.

VRO 300T Calculator

Trig functions are calculated by entering the angle first and then the appropriate trig function. For example, enter

, then select the

SIN

softkey. A value of 0.5000 (sin 30º) will be displayed.

Taper Calculator

You can calculate tapers either by entering dimensions from a print, or by touching a tapered workpiece with a tool or indicator.

TAPER AXES—use the axis keys on the keypad to change the axes if needed.

FIRST TAPER POINT—either enter a point from the print, or touch the tool to one point and press the TEACH POSITION softkey, once for each axis.

SECOND TAPER POINT—enter a second point on the taper.

TAPER ANGLE—is automatically calculated.

.75

3.25

0.5

TAPER CALCULATOR

TAPER AXES FIRST AXIS SECOND AXIS

FIRST TAPER POINT X Z1

SECOND TAPER POINT X Z1

TAPER ANGLE X Z1

X axis taper angle

0.5000

0.0000

0.7500

3.2500

85.6014

4.3987

ABS ABS

DEG DEG

TEACH

POSITION

TEACH

POSITION

Z1 axis taper angle

Calculator VRO 300T

RPM Calculator

This feature lets you calculate the correct rotational speed based on the diameter you are cutting and the desired surface speed.

DIAMETER—enter the workpiece diameter. You can change to metric with the MM key.

SURFACE SPEED—enter the desired surface speed. You can change between feet/minute and meters/minute using the softkeys. For

convenience, the

SURFACE

SPEED TABLE

softkey brings up a

table of surface speeds for various material. RPM—is calculated automatically.

RPM CALCULATOR

DIAMETER

2.000

SURFACE SPEED

150

RPM

INCH

FT/MIN

286

VRO 300T Printing

Printing

If you have a printer connected to the VRO 300T, you can have the readout print various pieces of information. Softkeys are available whenever there is something that you can print.

POSITION—when the axis positions are displayed, press the print the positions.

The current tool number is printed before the position. The absolute and incremental positions for each displayed position is printed with the units of measure. Also, the crossfeed axis will indicate if the position is a radius or a diameter value.

TOOL: #2 X ABS 2.9710 INCH DIA INC 2.9710 INCH DIA Z1 ABS 0.0435 INCH INC -1.8260

PROGRAM—when the program list is visible, you can press

the

softkey to print out each step of the program.

PROGRAM

Some setup

information, such

as scale factor,

prints here.

PROGRAM NAME: PART100 DIMENSION UNITS = INCH

POSITION

PROGRAM

FUNCTIONS

softkey to

then

001 SET TOOL NUMBER = 2 X = 1.2500 INCH Z1 = 0.5440 INCH

002 POSITION X = 0.0000 ABS DIA

Printing VRO 300T

TOOL LIBRARY—when you are looking at the tool library, press the to print a copy of it.

TOOL LIBRARY NUMBER X OFFSET Z OFFSET

00 0.5020

0.0021 INCH 01 0.2953 -

1.3822 INCH

SYSTEM PARAMETERS—the

PRINT SETUP

softkey is displayed in the Job Setup screen.

Both job-related and machine-related parameters are printed.

JOB SETUP PARAMETERS DISPLAY RESOLUTION

X = 0.0005 INCH Z1 = 0.0005 INCH

PRINT TOOL

LIB

softkey

SCALE FACTOR

1.0000 NEAR ZERO WARNING

VRO 300T Remote Interface

Remote Interface

You can enter commands into the VRO 300T from a remote terminal or computer if you have configured the serial port as a COMPUTER. These remote commands are in the form of ANSI standard ASCII characters. The remote device can request that the readout send information, such as the current position, or the device can control the readout by simulating the pressing of any of the readout’s hard keys or softkeys.

Requesting Information

Commands that request information from the readout begin with the question mark character. As soon as the command is recognized, the response data is sent, terminated by a CR character. Invalid commands are ignored.

String Command Response ?* Reset

?En

?Ix

?Ax

?U Get Units Returns the current display units, “INCH” or “MM”. ?X Get Active Axes Returns the displayable axes. Response is “X Z1 Z2 Y ** **”.

?T Get Current Tool Returns the number for the current tool (0-99). ?Q Get Port Status

Set Echo Mode: echo when a keypad command is sent.

Get Incremental Position

Get Absolute Position

No information returned. Resets the echo flag and input and output buffers.

n is equal to 0, 1, or 2. If n = 0, no echo. If n = 1, echo the control character sent. If n = 2, echo a string describing the key function. Refer to the “Readout Keypress” column in the Keypad Command table on page 30 for the strings.

Returns the position for the axis specified. x = 1, 2, 3, 4, 5 or

6. Examples are: “X= -123.4567 INCH”, “Z1= +123.4567 INCH”

For an undefined axis, the response is “* = ****.**** ***”. If an error exists, the response is: “x = Error mm”.

“**” means axes are not displayed.

Verifies the operation of the port connected to the computer. The responses are: 0 = No parity, data overrun, or buffer overflow errors have

occurred since the last “port status” check.

1 = One of the above errors has occurred since the last “port

status” check.

Remote Interface VRO 300T

Keypad Commands

Sending one of the control characters from the following table to the readout is equivalent to pressing the corresponding readout key.

Control

Character

Q X

W Z1

E Z2

R Y

A ZERO X S ZERO Z1

D ZERO Z2

F ZERO Y

! SOFT KEY 1

@ SOFT KEY 2

# SOFT KEY 3 $ SOFT KEY 4

% SOFT KEY 5

Z TOOL X POS T DRO Y PGM

U RAD/DIA

Readout Keypress

Control

Character

3 3 4 4 5 5 6 6 7 7 8 8 9 9

. . (decimal)

(underscore)

[ CLEAR ] ENTER

+ +

- * x (multiply)

/ ÷ < UP ARROW > DOWN ARROW

Readout Keypress

+/-

I INFO O SET UP G ABS/INCR H MM

J CALC 0 0 1 1 2 2

VRO 300T Other Features

Job Clock

The job clock can help you

Hours : Minutes

estimate jobs or monitor throughput. It records to the nearest minute. You can start, stop, and reset the job clock using the softkeys in Setup. Refer to page 43.

Reference Tables

Several useful tables, including thread sizes and machine cutting speeds, are included in the VRO 300T. Press the

INFO

key, then the

the index of topics. Move to REFERENCE TABLES and press the

INDEX

softkey to see

ENTER

key.

Setup VRO 300T

Setup

SETUP

The parameters are job related, meaning that they may change from job to job. Others are machine related and should be set as part of the installation. The

machine-related parameters can be accessed by pressing the and entering the access code.

Use the keys to move from one parameter to the next, and the

ENTER

The Press the

key lets you change the system parameters. Some of these

key to select the parameter.

USE NEW

softkey will terminate the setup process and save the changes.

SETTINGS

CANCEL

softkey to cancel the changes.

CHANGES

INSTALLATION

SETUP

softkey

JOB SETUP

TOOL LIBRARY DISPLAY RESOLUTION SCALE FACTOR NEAR ZERO WARNING ERROR COMPENSATION JOB CLOCK FEED UNITS REMOTE SWITCH VECTORING

INSTALLATION SETUP

DISPLAY CONFIGURATION ENCODER SETUP SERIAL PORT PARALLEL PORT PROTECTION DIAGNOSTICS

VRO 300T Setup

Job Setup

Setting Up the Tool Library

The VRO 300T can store the dimensional offsets for up to 100 tools. When you change a workpiece and establish the absolute zero, all the tools are automatically referenced from the new workpiece zero.

0 1 2 3 98...

The offset dimensions can be determined using a tool presetter, or you can use the auto-offset calculation feature of the readout. Press the

OFFSET

METHOD

softkey and select the method you wish to use.

Defining Tools with Auto-Offset

TOOL DESCRIPTION

OFFSET

Use the arrow keys to select the tool you want to qualify. Press the

ENTER

key.

Crossfeed Axis:

1. Install the tool and machine a diameter.

2. While the tool is still in contact with the workpiece,

press the

LOCK AXIS

softkey. The readout will remember

this tool position, even if you move the tool.

X Z1

3. Move the tool away from the workpiece and measure

the diameter.

4. Enter the measured value.

1 0 5

ENTER

Dia = 1.05

Setup VRO 300T

Longitudinal Axis:

1. Make a face cut.

2. While the tool is still in contact with the

workpiece, press the

3. Move the tool away from the workpiece and measure the face

LOCK AXIS

softkey.

location.

.83

4. Enter the measured value.

5. Press the

DONE

softkey to save the tool offset.

8 3.

ENTER

Repeat the above procedure for each tool you want to use. As your tools wear, you will begin to see differences between the readout display and workpiece dimensions. From time to time you will need to check or re-qualify your tools.

A Tool Library Strategy

You do not need to have all tools referenced to each other—you can have different groups of tools. For example, you may have qualified tools 10 through 20 on a tool presetter, and tools 50 through 60 using the auto-offset method. To use the first group of tools, install any one of them, say tool 15, and use it to set absolute zero. Now, tools 10 through 20 are referenced to the same zero location. To use the second group of tools, use any one of them, say tool 50, to set absolute zero, and now tools 50 through 60 will be correctly referenced.

VRO 300T Setup

Display Resolution

The display resolution will normally be the same as the encoder resolution. However, if the job tolerance is coarser than the encoder resolution (for example, the job tolerance may be ±0.005"), you can adjust the display resolution so you won’t be tempted to waste time by machining to a finer resolution.

Use the

COARSER

and

FINER

softkeys to cycle

through all the possible choices. The choices available depend upon the resolutions of the encoders.

If the axis is a crossfeed axis, you can press the

RAD

key to see what the display resolution will

DIA

look like as either a radius or a diameter.

Near Zero Warning

Each axis has its own near zero warning range. You can activate or deactivate the near zero

warning feature by pressing the

OFF

softkeys. When the warning is

activated, you can enter the range.

and

DISPLAY RESOLUTION

X AXIS

0.0005 DIA

Z1 AXIS

0.001

Z2 AXIS

0.0005

Y AXIS

0.0005

U AXIS

V AXIS

NEAR ZERO WARNING

X AXIS

0.010

Z1 AXIS

0.020

The warning indicator appears in the display just before the tool enters the range, and it begins to move when the tool enters the range. The indicator moves faster as it approaches zero. Refer to page 15.

Z2 AXIS

OFF

Y AXIS

OFF

U AXIS

OFF

U AXIS

OFF

Setup VRO 300T

select encoder 3.

Linear Error Compensation

The VRO 300T includes a linear error compensation feature that enables you to compensate for machine tool inaccuracies. You can have up to 99 different compensation segments per encoder.

In order for linear error compensation to function properly, the readout needs to be able to establish the segment boundaries in the same physical locations each time you turn on the readout. This means that you must find the encoder’s reference mark. Refer to page 6, “Power-On Position Recovery”.

To begin the process, select ERROR COMPENSATION from the JOB SETUP list. Error compensation is applied to each encoder individually, so you must first select the axis that you want to work with. You may use a display axis key

(

for example) to select the encoder, unless the encoder is coupled with

another one, or the encoder is displayed as the U or V axis. If that is the case, enter the number of the input that the encoder is connected to.

Examples:

• X axis displays encoder 1; you may press X or to select this encoder.

• Z1 axis displays encoders 2 + 3; you may press Z1 or

to select encoder 2, but you must press

Once you have selected the encoder, the readout displays the error compensation table for that encoder. Initially, there is only one segment defined, and it applies from one end of the encoder to the other.

ENCODER 1 ERROR COMPENSATION

Segment 2Segment 1 Segment 3

+ Count Direction

Machine bed side view

(slightly exaggerated)

Segment

01 0 PPM ENCODER END - ENCODER END

number

Most negative segment boundary

Compensation factor in parts per million

Most positive segment boundary

The following softkeys let you begin defining the table.

ENTER

COMP

CALCULATE

COMP

ANCHOR

SEGMENT 1

DONE

VRO 300T Setup

Note: If you anchor Segment 1 in a different place after you have established

Anchoring the Segments

If you anchor the beginning of the first segment at a known location on the encoder, then the segment boundary values will be the actual physical distances from the anchor point, as shown below.

23.4

Segment 1

anchored here

Encoder

Anchoring the segments is optional: if you don’t do it, the segment boundary values may be meaningless to you (although they are understood by the readout).

8.0

Segment 1 Segment 2 Segment 3

Reading Head

ENCODER ERROR COMPENSATION

01 492 PPM 02 -697 PPM 03 -78 PPM

ENCODER END -- 8.00

8.00 -- 23.40

23.40 -- ENCODER END

ANCHOR

SEGMENT 1

Pressing this softkey puts the start of Segment 1 at the current tool location. To anchor the segments correctly, move the encoder

in the negative count direction as far as it will go, then press

the compensation values, then the entire compensation table will be shifted to the new anchor location, as shown below.

Segment 1

anchored here

Encoder

Segment 1

anchored here

Segment 1 Segment 2 Segment 3

Reading Head

Segment 1 Segment 2 Segment 3

ANCHOR

SEGMENT 1

Setup VRO 300T

Compensation Entry Methods

You can enter the segment boundaries and compensation factors using the keypad, or you can have the readout calculate them for you. Normally, you would use the keypad entry method only to restore or adjust a known compensation value.

Manual Entry

ENTER

COMP

The

FACTOR—Enter the compensation factor in parts per million.

SEGMENT—You can change the TO field only. Use

ENCODER

the end of the encoder. Use the

This brings up the softkeys needed to let you enter compensation and segment information using the keypad.

NEW

SEGMENT

NEW

softkey brings up the DEFINE SEGMENT form.

SEGMENT

softkey if the boundary is at the

END

CLEAR TABLE

ANCHOR

SEGMENT 1

POINT

CANCEL DONE

softkey to

DEFINE SEGMENT

FACTOR

SEGMENT FROM TO ENCODER END

ENCODER END

PPM2

enter the physical location of the boundary. The current reading head location may also be

entered using the

The

DONE

softkey saves the segment information in the table.

Continue adding segments with the

TEACH

POSITION

softkey.

NEW

softkey. You must add them in

SEGMENT

order, from the encoder’s most negative end to its most positive end.

The

CLEAR

softkey will delete the information from the table, erasing all

TABLE

segments and compensation factors, so that the readout will not perform any error compensation.

VRO 300T Setup

Calculated Entry

CALCULATE

COMP

The

This brings up the softkeys needed to have the readout calculate the compensation factors.

NEW

SEGMENT

NEW

SEGMENT

softkey brings up the CALCULATE SEGMENT form.

CLEAR TABLE

ANCHOR

SEGMENT 1

STANDARD—This is where you enter the actual

length of the standard. TRAVEL—Shows the measured length of the

standard. This would normally be slightly different from the actual length because of machine inaccuracies.

FACTOR—This is the compensation factor calculated by the readout.

CANCEL DONE

CALCULATE SEGMENT

STANDARD

0.0000

TRAVEL

0.0000

FACTOR

0000 PPM

Setup VRO 300T

If the calculated factor is 9999 or –9999, the machine

You will need a dial indicator and a measurement standard.

1. Position the standard in the center of the segment.

2. Enter one edge of the standard.

FIRST POINT

3. Enter the other edge of the standard.

SECOND POINT

4. Enter the actual size of the standard, including the probe

diameter if necessary.

1.000

inaccuracy is too great and cannot be compensated.

5. Press

DONE

to save the segment information into the table.

The readout will automatically set the segment boundaries between the current segment and adjacent segments.

Opposite sides

0.875

VRO 300T Setup

Feed Rate Units

Use the

IPM

and

MMPM

softkeys to change the feed rate units between

inches per minute and mm per minute.

Remote Switch

The external switch (pendant or footswitch) can be enabled to perform any or all of the following functions:

PRINT—print the current position. Enable the print function with the

it with the

softkey.

YES

softkey, disable

ZERO—zero one or more axes. Use the axis keys (X for example) to specify which axes you want to zero when the switch is

pressed.

NEXT—run the next program step. The

YES

and

disable this function.

REMOTE SWITCH

ZERO

softkeys enable or

XZ1

Setup VRO 300T

Vectoring

Vectoring breaks down the movement of the compound axis into the crossfeed or longitudinal axes. If you are turning threads, for example, vectoring lets you see the diameter of the thread in the X-axis display, even though you are moving the cutting tool with the compound axis handwheel.

With vectoring enabled, you can preset the desired radius or diameter in the X axis, so that you can “machine to zero”.

When vectoring is used with the VRO 300T, the compound axis encoder must be assigned to the Y axis display (it can be assigned to other displays as well—refer to page 44). The crossfeed component of movement of the Y-axis will then be shown in the X-axis display. The longitudinal component of movement of the Y-axis will be shown in the Z1-axis display, the Z2axis display, or both.

DIA 2

DIA 1

Compound-rest

direction of motion

+29.5º

Select VECTORING from the JOB SETUP list.

VECTORING

STATUS—use the

and

OFF

softkeys to

enable or disable the vectoring feature. The X and Z axis displays will indicate when vectoring is enabled, and the Y axis will display the angle of the compound axis.

STATUS

Z COMPONENT

ANGLE

29.500

Z COMPONENT—use the Z1 and Z2 keys to select which Z-axis display to use for the longitudinal

axis. ANGLE—enter the angle between the X and Y axes, as indicated in the diagram

above.

VRO 300T Setup

For a scale factor that allows for 3% material shrinkage, use this formula:

.971.03

Scale Factor

The scale factor can be set to scale the workpiece up or down from the preset or programmed size. All preset and displayed dimensions are multiplied by this scale factor. All programmed dimensions will be multiplied by this scale factor when the program is run. The numbers in your program are not changed.

A scale factor of 1.000 causes the readout to use preset or programmed dimensions exactly. Values greater than 1 cause parts to be made larger; values less than 1 cause parts to be made smaller.

Example:

SCALE FACTOR

SCALE

1.0000

rScaleFacto ==

−

1.0309

Job Clock

The softkeys let you start and stop the job clock, and let you reset it to zero. The actions do not take effect until you leave

setup with the

USE NEW

SETTINGS

softkey.

JOB CLOCK

ELAPSED TIME RUNNING

1:38

Setup VRO 300T

Installation Setup

Display Configuration

Individual encoders are connected to the VRO 300T at inputs numbered 1 through 6. The assignment of each encoder to an axis display (X, Z1, or Y for example) is done by completing this form.

Each axis display can be configured in one of the following ways.

Unused—press the

OFF

softkey to delete the

axis from the DRO display. Single Encoder—use the numeric keypad to enter

the encoder input number. Coupled Encoders—you can couple two encoders

together using the +, -, or keys:

1 2

will display the sum of

encoders 1 and 2.

1 2

will display the difference

DISPLAY CONFIGURATION

X DISPLAY

Z1 DISPLAY

Z2 DISPLAY

Y DISPLAY

U DISPLAY

2+3

V DISPLAY

OFF

between encoders 1 and 2.

1 2

will display the average of encoders 1 and 2.

You can display the same encoder in more than one axis. In the above example, the X, Z1, and Z2 displays show encoders 1, 2, and 3

respectively. The Y-axis display will also show encoder 3, and the U-axis display couples the movements of encoders 2 and 3 together (for example, when the compound axis is parallel to the longitudinal axis). The V display will not appear.

Encoder 2

Encoder 1

Encoder 3

Encoder 2

Encoder 3

Encoder 1

VRO 300T Setup

Encoder Setup

You must tell the readout something about the encoders. Select ENCODER

SETUP from the Installation Setup list and enter the encoder number (the

number is defined by the input connector number on the back panel of the readout).

The encoder number you selected is shown at the top of the form.

RESOLUTION—first use the softkeys to select between linear and angular movement.

Linear—move the corresponding

ENCODER 1 SETUP

RESOLUTION

10.0000 UM

DIRECTION

POSITIVE

AXIS TYPE

LONGITUDINAL

machine axis in a positive direction until the readout senses and displays the resolution. You won’t have to move more than two inches. For encoders without Position-Trac, enter the resolution in microns (µm).

Angular—for an encoder used to measure angular position, enter the number of counts per revolution.

DIRECTION—you can change the count direction with the

POSITIVE

and

NEGATIVE

softkeys. AXIS TYPE—select either longitudinal or crossfeed. A crossfeed axis will be able

to display position either as a diameter or as a radius. Just press the

RAD

DIA

key to select which way you want to display it.

Setup VRO 300T

Serial Port

You can configure the serial port to connect to a printer or to a computer. Check the specifications for your printer or computer to determine how to complete the following information. For most items, the softkeys will provide you with the available choices.

FUNCTION—identifies what you’re communicating with, a printer or a computer. Press

OFF

disable the serial port. OUTPUT TAIL—enter the number of blank lines (CR

character), from 0 to 9, that you want to print after the information is sent.

SERIAL PORT

PORT CONFIGURATION FUNCTION OUTPUT TAIL LF AFTER CR NO

PORT PROTOCOL BAUD PARITY DATA BITS 8 STOP BITS 1

PRINTER

1200

NONE

LF AFTER CR—press

YES

if you want to output a

line feed character after the carriage return (end of line).

BAUD—press the

LOWER

and

HIGHER

keys to cycle

through the available information transmission speeds (baud rate).

PARITY—select none, even, or odd. DATA BITS—use the softkeys to select 7 or 8 bit word length. STOP BITS—use the softkeys to select 1 or 2 stop bits.

VRO 300T Setup

Parallel Port

Most printers connect to the parallel port. You can experiment with these settings to format the printed output.

FUNCTION—select

PRINTER

to enable it for printing.

OFF

to disable the port or

OUTPUT TAIL—enter the number of blank lines (CR character), from 0 to 9, that you want to print after the information is sent.

PARALLEL PORT

PORT CONFIGURATION FUNCTION OUTPUT TAIL LF AFTER CR NO

PRINTER

LF AFTER CR—press

YES

if you want to output a

line feed character after the carriage return (end of line).

Protection

You have the ability to prevent changes to your part programs and to your tool library without

first entering into the INSTALLATION SETUP and disabling the protection.

With program protection set to YES, programs cannot be changed or saved. This reduces the likelihood that an inexperienced operator will inadvertently make scrap parts by mistakenly changing or deleting a program step.

PROTECTION

PROGRAM

TOOL LIBRARY

YES

If you protect the tool library, it can’t be mistakenly changed either.

Installation VRO 300T

IMPORTANT

Installation

Before installing the VRO 300T readout, record the serial number on the warranty card and return it to ACU-RITE INCORPORATED. The serial number label is located on the back of the readout.

Selecting a Location

Selecting a location for the readout is an important consideration for proper installation. Keep the following points in mind when selecting a safe and convenient location:

• The readout should be within reach of the operator for easy access to the keypad.

• The readout should be approximately at eye level.

• Avoid moving components or tools and minimize coolant splash or spray.

• The operating environment must be within the temperature range of 0° to

40°C (32° to 104°F) with a non-condensing relative humidity of 25% to 85%.

Proper Mounting

ACU-RITE has developed special mounting kits for the readout which address the most common mounting requirements. Mounting kits include:

• Column and base machine mountings

• Hardware and mounting instructions

These kits are available from your factory authorized ACU-RITE Distributor or OEM/OEI.

If you fabricate a support device for the readout, it should be large enough and strong enough to accommodate the readout. It must also be stiff enough to minimize any vibration induced by machinery on the shop floor.

VRO 300T Installation Connecting the Encoders

Insert the connector from each encoder into the mating connector on the back of the readout. Fasten it with a small screwdriver.

Provide enough slack in the encoder cables to allow for full travel of all machine axes. Check that machine movements will not pinch the cables. Use the cable tie-down hardware kits supplied with the encoders to fasten the cables neatly to the machine.

Connecting a Ground Wire

Connect a ground wire from the terminal on the back of the readout to the machine. The machine should also be connected to a solid earth ground. If not, be sure that the readout is.

Checking Voltage and Connecting Power

CAUTION

Connecting the readout to a power source outside of the acceptable range may damage the readout, the encoders, or both.

Check that the voltage available at the power source is within specification before connecting it to the readout. Refer to page 50.

Connect the readout to the power source using the power cord supplied.

Readout Specifications VRO 300T

Readout Specifications

Characteristic

Operating conditions

Storage conditions

Input requirements Voltage: Frequency: Current: Fuse Encoder input

Control Function Interface (CFI)

Edge finder input Touch probe input

Specification

0° to 40°C (32° to 104°F) 25% to 85% relative humidity (non-condensing)

-40° to 60°C (-40° to 140°F) 25% to 95% relative humidity (non-condensing)

95 – 264 VAC single phase 47-63 Hz 350ma @115V, 200ma @230V

¾ A, 250V, 3AG, Slo-blo Position signals: channels A & B

TTL square wave signal in quadrature (90° nominal phase relationship)

Maximum input rate: 50 KHz Reference signal: TTL square wave Compatible with ACU-RITE CFI box

Compatible with ACU-RITE electronic edge finder Compatible with Heidenhain touch probe

Ext. video output Pendant input Parallel port Serial port Size

Weight Mounting FCC compliance

VGA 640 x 480 pixels Compatible with ACU-RITE IEEE 1284-A for standard PC printer EIA/TIA-232E, V.28, RS-232C compatible

8.375”H x 15.25”W x 10”D 17 lbs. Bottom: two ¼ -20 threaded inserts Class A

VRO 300T Troubleshooting

NOTICE

Troubleshooting

This section is intended to provide you with some basic troubleshooting assistance with your readout system. If you cannot correct the problem after following these instructions, contact your authorized ACU-RITE distributor or OEM/OEI for repair or replacement procedures.

No Operation

If you turn power off, you must wait at least 5 seconds before turning it back on, or the readout may not power up. This is because the power supply, in order to withstand brief power outages and brownouts, requires several seconds to reset itself.

If the readout display will not operate, check the following conditions:

• Check AC power source. If the readout cannot be powered up,

that line voltage is present at the source and that the line voltage meets the required specifications.

• Check power cord. Remove the power cord at the electrical input module

on the back of the readout. Determine if line voltage is present at this end of the cord.

confirm

Troubleshooting VRO 300T

• Check fuse. With the power cord removed, use a thin straight-blade screwdriver to remove the cover of the electrical input module. Slide out the fuse holder and check the fuse. If necessary, replace it. Replace the input module cover by snapping it back into place, and reconnect the power cord.

Opening

slot

CAUTION

Replace fuses only with the specified type. Using incorrect fuses can present a safety hazard. The readout may also be permanently damaged. Refer to the Readout Specification chart on page 50 for the correct fuse.

Incorrect Operation

If system positioning does not seem to be repeatable, the problem could be with the machine tool or with the readout system.

• Check the machine tool. Check that the saddle is not locked. Ensure that the turret-to-column bolts are properly secured. Check the gib adjustments. Check spindle run-out.

• Check linear encoders. Check each encoder and reading head for proper installation. Ensure that the mounting brackets are secure.

VRO 300T Troubleshooting

If the system seems to be displaying incorrect positions, check the following items.

• Verify presets. Make sure that the numbers you entered are correct.

• Verify tool. Check that the correct tool number is being used. Make sure

the correct tool offset has been entered. Check the tool for wear.

• Verify the scale factor. Ensure that the correct scale factor is being used.

• Verify linear error compensation. Make sure that the factors used for

linear error compensation are correct.

Errors

The readout includes built-in test and error-checking circuitry. This circuitry identifies errors that occur, and reports the problem to the operator.

Loss of power is indicated by the “Power was off” message. Loss of power means that power to the readout has been interrupted. Since power to the encoders has also been interrupted, position information may no longer be

accurate. Press the information about position recovery.

CLEAR

key to clear the error message. Refer to page 6 for

Counting errors are indicated by the “Scale miscount” message, telling you in which axis the miscount occurred. Counting errors result from distorted electrical signals from an encoder. These signals can be a result of an encoder malfunction, misalignment, mounting problems, or electrical interference.

Press the

CLEAR

key to clear the error message. Follow these steps to determine

if your difficulties are associated with the readout or with the encoder.

• Ensure that the linear encoder connectors are correctly seated.

• Swap linear encoder cables at the readout to see if the problem still

appears in the same display.

• If the problem remains in the same display, the readout is in error.

• If the problem follows the connection change, the linear encoder may be

in error. Refer to the Checking the Linear Encoders section of your encoder reference manual.

Display overflow errors are indicated by a blank axis display. A numeric overflow occurs when the intended measurement is too large for the eightdigit display. Clear the error by returning the machine table into an area where measurements can again be displayed, setting a new preset or zeroing the display.

ACU-RITE Readout Systems are

JAMESTOWN, NEW YORK 14701

manufactured in the USA

ACU-RITE IS AN

ISO 9001

CERTIFIED

MANUFACTURER

2002-702 EDITION A PRINTED IN USA

ACU-RITE INCORPORATED

ONE PRECISION WAY

MASON INDUSTRIAL PARK

ACU-RITE VRO 300T User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual