ACU-RITE DRO 200M User Manual

DRO 200M

™

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

displayed, press the 8, 8, ready for machine parameter setting operations.

, and

SETUP

key. When “SETUP” is

ENTER

keys. The readout is now

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.

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 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 packing materials and contact your Authorized ACU-RITE Distributor for return procedures.

DRO 200M Table of Contents

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

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

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

Keypad .....................................................................................................................2

Displays....................................................................................................................3

Power-On Position Recovery......................................................................................4

Position-Trac ............................................................................................................4

Readout Operations..........................................................................................5

Clear Key.......................................................................................................................5

Absolute and Incremental Displays............................................................................5

Absolute Display.......................................................................................................5

Incremental Display..................................................................................................5

Zeroing the Displays ....................................................................................................6

Absolute Zero...........................................................................................................6

Moving the Absolute Zero.........................................................................................8

Zeroing at a Center Line...........................................................................................9

Incremental Zero.......................................................................................................9

Presetting....................................................................................................................10

Absolute and Incremental Presets..........................................................................11

Center-line Presets.................................................................................................12

Near Zero Warning .....................................................................................................13

Centerlines..................................................................................................................13

Bolt Hole Patterns ......................................................................................................14

Defining the Bolt Hole Pattern.................................................................................14

Using the Result.....................................................................................................15

Tool Offset...................................................................................................................16

Defining the Offset Direction...................................................................................16

Using Tool Offsets..................................................................................................17

Setup..................................................................................................................18

Machine-Related Setup Parameters .........................................................................18

Count Direction.......................................................................................................18

Tool Offset Direction...............................................................................................18

Encoder Resolution................................................................................................18

Job Setup Parameters................................................................................................19

Display Resolution..................................................................................................19

Scale Factor ...........................................................................................................19

Near Zero Warning.................................................................................................19

Bolt Circle Definition................................................................................................20

Linear Error Compensation.....................................................................................20

Edge Finder Diameter.............................................................................................21

Installation.........................................................................................................22

Readout Specifications...................................................................................25

Troubleshooting ..............................................................................................26

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

DRO 200M

Keep these instructions in a secure place for future reference.

DRO 200M Introduction

Electronic

Input

Encoder

Model number and

Electrical &

information

Power switch and

Ground wire

Indicators

Application-specific

Introduction

ACU-RITE’s DRO 200 readout series provides application-specific features required for you to obtain the most productivity from your manual machine tools.

The DRO 200M is designed specifically for milling and drilling applications. Special features include an easy to use bolt hole routine, centerline locating, and quick tool offsetting.

A Tour of the Readout

Front and Back Views

fuse rating

MM INCR ABS ZERO SET C/L

FREQUENCY

VOLTAGE CURRENT FUSE

115V

ABS INCR

ZERO

TOOL

DIA

ZERO

BOLT

CIRCLE

DEFINE

USE

SETUP

7 9

4 6

..0 +/-

CLEAR

ENTER

function keys

FCC COMPLIANCE

Edge Finder

EDGE

FINDER

INPUT 1INPUT 2INPUT 3

inputs

voltage selector

connection

3x DRO PN 2001009 SN 9766554

Serial number

Introduction DRO 200M

Use these to define a

Zero an axis display

Begin a preset

Compensate for tool

Keypad

Selects absolute or

incremental display

Used to locate

centerlines

diameter

ABS

INCR

TOOL

DIA

ZERO

English / metric

conversion

Enter all numeric values

with these

BOLT

CIRCLE

DEFINE

SETUP

. 0

CLEAR

System setup parameters

87 9 54 6 21

+/-

ENTER

USE

bolt hole pattern, and

use the calculated

hole positions.

DRO 200M Introduction

Displays

At the top of the display window is a row of indicators. These tell you the current state of the readout.

MM INCR ABS ZERO SET C/L

Appears when

setting an

absolute zero.

Appears when you’re

positioning in metric,

dark when you’re

positioning in inches.

Lets you know when

you are setting a

preset or an absolute

zero.

These tell you if the

position display is

incremental or absolute.

They also refer to the

type of preset.

Tells you when the centerline

function is active.

In addition to the lighted indicators along the top of the display, the top axis display will scroll longer messages that will help you step through some of the procedures.

Introduction DRO 200M

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. A flashing decimal point will indicate that the last position has not been recalled.

If you use an encoder without Position-Trac, the procedure for recovering your position is slightly different. Reference marks on these encoders are about 8” 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 and hold the

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

ABS

key until the decimal point starts to flash.

INCR

You must move in a positive count direction.

DRO 200M Readout Operations

Readout Operations

Clear Key

Use the

CLEAR

key to erase digits that you entered by mistake, or to take you back if

you’ve pressed a wrong function key.

Absolute and Incremental Displays

Absolute Display

Shows the distance from your current position to absolute zero.

The drill is positioned at

1.625 ABS.Absolute Zero,

also called datum

or Workpiece

Zero

1.625

X 1.625 ABS

Incremental Display

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

The drill is 0.625 on the negative side of the incremental zero.

Absolute

zero.

1.000

-0.625

1.625

X -0.625 INCR

ABS

INCR

X 1.000 ABS

Incremental zero: the incremental display will read 0.000 when the drill is here.

Automatic Display Switching

Sometimes the readout will switch from one display to the other automatically. When you enter a preset, for example, the display switches to the incremental display so that you can move to zero. Whenever the readout does an automatic display switch, INCR will appear briefly in the display.

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