ZS Instruments DR300UN Manuel utilisateur

Digital Readout Manual
ABS
TL01 F0.0ipm
8.8.8.8.8.8.8.8.0.0.0.0.0
8.8.8.8.8.8.8.8.0.0.0.0.0
8.8.8.8.8.8.8.8.0.0.0.0.0
Revision 1.6 ©ZS Systems LLC All Rights Reserved

2
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
Specications
Electrical ...........................................................................................................................................................................................31
Physical .............................................................................................................................................................................................31
Environment ...................................................................................................................................................................................31
Disposal .............................................................................................................................................................................................31
Input and Resolution ...................................................................................................................................................................31
Troubleshooting
CommonProblems.........................................................................................................................................................................32
Warranty
Limited Warranty and Disclaimer .............................................................................................................................................33

3
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

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DR300-UN
Installation
Mounting
The DRO has dierent 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 congurations 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

5
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

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DR300-UN
Grounding
Once the DRO is mounted to the machine, it must be grounded. Using a 3 prong grounded outlet is sucient; 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 aect 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

7
Y
X
1.0
1.8
0.5
0.8 A B
C
Y
X
1.0
0.5
0.3
0.8
A B
C
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 aect 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 dierent 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

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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 (osetting the origin from the current position by the specied 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.
.8.8.8.8.8.8.8.
0.0.0.0.0
.8.8.8.8.8.8.8.
0.0.0.0.0
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 oset zero from the current position in an axis, press the axis button and then type in the desired oset
and press the OK button.

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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 oset 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 dene 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

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DR300-UN
Set Sub-datum
Setting a sub-datum point assigns an oset 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 oset from the Abs zero.
Values for each axis are set independently, so it is possible to choose dierent methods for dierent 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 conrm
4 Press 1 to sense the current position
OR
Press 2 and enter an oset value using the numpad
5 Repeat step 4 for the remaining axis
6 Press 1 if you would like to store this datum
OR
Press 2 if you would like to discard these settings and select
another datum to edit
OR
OR
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 conrm
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
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