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

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