ZS Instruments DR300UN User manual

Digital Readout Manual

ABS

TL01 F0.0ipm

8.8.8.8.8.8.8.8.0.0.0.0.0

DR300-UN

Table of Contents

Introduction

Product Overview .............................................................................................................................................................................3

Installation

Mounting ............................................................................................................................................................................................4

Grounding ..........................................................................................................................................................................................6

Cables ...................................................................................................................................................................................................6

Standard Functions

Units ......................................................................................................................................................................................................7

Absolute and Incremental Modes ..............................................................................................................................................7

Sub-datumMode ..............................................................................................................................................................................9

Feed-rate ..........................................................................................................................................................................................11

Sleep Mode .......................................................................................................................................................................................11

Zero Reference Restore ................................................................................................................................................................12

Calculator .........................................................................................................................................................................................13

Mill Functions

Centerline .........................................................................................................................................................................................14

Incline ................................................................................................................................................................................................14

Smooth Radius ...............................................................................................................................................................................17

Bolt Circle .........................................................................................................................................................................................19

Bolt Array ...........................................................................................................................................................................................21

ToolCompensation ........................................................................................................................................................................23

Lathe Functions

Axis Summing .................................................................................................................................................................................25

Radius/Diameter mode ................................................................................................................................................................25

Axis Vectoring .................................................................................................................................................................................26

TaperMeasurement .......................................................................................................................................................................26

ToolCompensation ........................................................................................................................................................................27

Settings

Machine Type ..................................................................................................................................................................................28

EncoderSettings .............................................................................................................................................................................28

Display Settings ..............................................................................................................................................................................30

System Info ......................................................................................................................................................................................30

Factory Default ...............................................................................................................................................................................30

Specications

Electrical ...........................................................................................................................................................................................31

Physical .............................................................................................................................................................................................31

Environment ...................................................................................................................................................................................31

Disposal .............................................................................................................................................................................................31

Input and Resolution ...................................................................................................................................................................31

Troubleshooting

CommonProblems.........................................................................................................................................................................32

Warranty

Limited Warranty and Disclaimer .............................................................................................................................................33

Introduction

Thank you for purchasing ZS Instruments DR300UN DRO. Your new digital readout is capable of many advanced features

that make machining operations fast and easy. This guide will cover the installation and setup of the unit, as well as how to

use all of the included features. Please read through this manual in its entirety before beginning installation or using the

unit to avoid damage to the DRO, encoders, or your machine. Save this manual for future reference.

Product Overview

Power Switch

Mounting Arm

Encoder Ports

Main Power

Information Screen

Power Button

Numeral

Keypad

(Numpad)

Fuse

Compartment

Grounding Port

ABS

TL01 F0.0ipm

8.8.8.8.8.8.8.8.2.2.6.2.5.0

8.8.8.8.8.8.8.8.1.2.8.7.5

8.8.8.8.8.8.8.8.5.7.5.0.0

Serial Number Plate

Axis Readout

DR300-UN

Installation

Mounting

The DRO has dierent types of arms for mounting to a mill or a lathe. Check that you have the correct type of arm for your

machine before attempting to install the DRO.

Mill Mounting

Step 1:Determine the ideal mounting location for your particular machine. Using the mounting base as a guide, center

punch, drill, and tap two holes for the 1/4-20 or M6 screws. Attach the arm assembly to the machine as shown. Use the

four set screws to level the mounting arm.

Step 2:Attach the DRO to the end of the mounting arm using the included hardware.

Due to the large number of machines and mounting congurations that are supported by the unit, hardware for

securing the mounting arm to the machine is not included. Use two 1/4-20 or M6 screws of an appropriate length

for your particular mounting arrangement.

Make sure that the DRO and cabling will clear all parts of the machine and

will be shielded from coolant nozzles, ying chips, or other hazards.

Be sure that the mounting arm is securely tightened or damage to

the DRO may occur.

Be sure that the DRO is in the correct orientation

Step 2:Attach the mounting arm to the base using the hex screw as shown.

Lathe Mounting

Step 1:Determine the ideal mounting location for your particular machine. Using the mounting

base as a guide, center punch, drill, and tap two holes of the same size and thread type as the screws

you will be using. Attach the arm assembly to the machine as shown. Use the four set screws to level

the mounting arm. Remove the hex screw from the top of the mounting arm base.

Make sure that the DRO and cabling will clear all parts of the machine and

will be shielded from coolant nozzles, ying chips, or other hazards.

Be sure that the mounting arm is securely tightened or damage to

the DRO may occur.

Step 3:Attach the DRO to the end of the mounting arm using the included hardware.

Be sure that the DRO is in the correct orientation

Be sure that the swivel faces upward

DR300-UN

Grounding

Once the DRO is mounted to the machine, it must be grounded. Using a 3 prong grounded outlet is sucient; however

we also recommend connecting a ground terminal on the back of the DRO unit to the machine ground with AWG 12

wire. It is important to ensure that the machine itself is properly grounded. Note, these are just general guidelines, always

follow national and local electric codes! Failure to ground the unit may cause equipment damage and/or electric

shock!

Cables

Before attempting to connect the encoders to the DRO, ensure that they are properly installed on the machine. Check the

encoder manual for the installation procedures. Encoder alignment can drastically aect the accuracy of the DRO system,

and severely misaligned encoders will result in premature wear and/or permanent damage.

Once the linear encoders are properly installed, plug the encoder cables into their respective axis inputs on the back of

the unit. Switch the DRO power o before connecting the encoders. Move each axis along its full range of motion to en-

sure that cables are not caught on any parts of the machine and do not rub against sharp edges that may cause damage

to the cables. Secure the cables such that they can not fall into the lubricant tray when disconnected from the DRO.

Power Cable

X-Axis Encoder

Grounding Terminal

Plug the cables into the following locations:

Y-Axis Encoder

Z-Axis Encoder

(if equipped)

Installation

1.0

1.8

0.5

0.8 A B

1.0

0.5

0.3

0.8

A B

Units

Your Digital Readout can be set to display position in either imperial or metric units of measure. Imperial units are displayed

in inches while metric units are in millimeters. Note that changing units will not aect current position and you may switch

the active units at any time.

The current units are indicated on the information screen. The feed-rate will be displayed in inches per minute (ipm) for

imperial units and in millimeters per second (mm/s) for metric units.

Standard Functions

Absolute and Incremental Modes

The use of absolute and incremental modes allows for dierent methods of referencing measurements. Proper use of these

modes allows the machinist to perform operations without the need for manual calculations. The currently active mode is

displayed on the information screen (“ABS” for absolute and “INC” for incremental).

When the DRO is in absolute mode, the coordinate display is always showing the position from the origin. In the example

part below, we set this origin point on the top surface at the front left corner of the part. If we were to move to drill feature

“A”, the DRO would display X=1.000”and Y=0.500”. To drill feature“B”, move the X axis until DRO displays X=1.800” .

In incremental mode, the coordinate display will show the position relative to the last feature. This can be helpful when

the working dimensions reference two features from each other. In the example part below, we would zero X and Y after

feature “A” is complete, and then move until DRO displays X=0.800”and Y= 0.300” to machine feature “C”.

ABS

TL01 F0.0ipm

ABS

TL01 F0.0mm/s

ABS

TL01 F0.0ipm

INC

TL01 F0.0ipm

In Absolute Mode: In Incremental Mode:

Press the abs/inc button to toggle between absolute and incremental modes.

ABS

TL01 F0.0ipm

INC

TL01 F0.0ipm

Absolute dimensioning Incremental dimensioning

DR300-UN

Zeroing or Presetting Axis Position

In either absolute or incremental mode, the current position can be zeroed (setting the origin to the current position) or

preset to any number (osetting the origin from the current position by the specied distance). The value for each axis is

set independently.

In addition, incremental mode supports the All Axis Zero and Recall Last Value functions.

Abs Set

X: 0 in 8.8.8.8.8.8.8.8.0.0.0.0.0.

All Axis Zero

In the incremental mode, to zero all axes at once, press the Ax0 button.

.8.8.8.8.8.8.8.

0.0.0.0.0

.8.8.8.8.8.8.8.

0.0.0.0.0

Abs Set

X: 2.5 in 8.8.8.8.8.8.8.8.2.5.0.0.0.

Standard Functions

To zero an axis, press the axis button and then, with the axis reading 0.0000, press the OK button.

To oset zero from the current position in an axis, press the axis button and then type in the desired oset

and press the OK button.

Recall Last Value

In incremental mode the digital readout can recall the last preset value entered for each axis. This function is useful when

the same move must be repeated several times.

Example: a part requires a series of holes to be drilled at 2.25 inch intervals along the X axis. The recall function can be used

to quickly get the same oset each time

Standard Functions

Step Buttons Information Screen

1 Move to the position of the rst hole and drill to the desired depth

2 Press X, enter 2.25 on the numpad, and press OK

3 Move the X axis until the X display reads zero and drill the second

hole

4 Press Recall, then press X

5 Move the X axis until the X display reads zero and drill the third

hole

6 Repeat steps 4 and 5 until all of the holes are drilled

Inc Set:

X: 2.25 in

Inc Recall

Press X Y Z Cncl

Sub-datum Mode

Up to 200 sub datum points can be added to dene the position of features relative to the absolute origin zero point. When

a sub-datum is selected the DRO will display the distance to the sub-datum position such that when you are at the correct

position the DRO axis displays will read zero. Because all sub-datum features are relative to the absolute mode origin point,

when the origin is moved, as in re-zeroing on a new part, all the sub-datum points will move with it.

To enter into the sub-datum mode recall an existing datum using the REC button. To create a new datum use the SET

button.

When in sub-datum mode, the current sub-datum is shown on the information screen: “DT001” means Datum 001

DT001

TL01 F0.0ipm

DR300-UN

Set Sub-datum

Setting a sub-datum point assigns an oset to that datum from the absolute zero. Sub-datum points can be set either by

sensing the current tool position in relation to the absolute origin or by explicitly entering an oset from the Abs zero.

Values for each axis are set independently, so it is possible to choose dierent methods for dierent axis. Sub-datums are

stored in non-volatile memory, so datum points will not be lost during a loss of power.

Standard Functions

Step Buttons Information Screen

1 Press the Set button

2 Use the up and down arrows to select the datum you would like to

edit

3 Press OK to conrm

4 Press 1 to sense the current position

Press 2 and enter an oset value using the numpad

5 Repeat step 4 for the remaining axis

6 Press 1 if you would like to store this datum

Press 2 if you would like to discard these settings and select

another datum to edit

X Abs Datum 001

1-Store 2-Discard

X Abs Datum 001

1-Sense 2-Enter

Datum to Edit:

001

To Recall a Previously set Sub-datum:

Step Buttons Information Screen

1 Press the Rec button

2 Use the up and down arrows to select the datum you would like

to recall

3 Press OK to conrm

4 The tool position is now displayed in relation to the selected

datum and the information screen shows the selected datum

DT001

TL01 F0.0ipm

Recall Datum

001

Table of contents

ZS Instruments DR300UN User manual

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