Newall DP900 User manual

Digital Readout Display
D 900 Manual

i
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Screen layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Using the Help system . . . . . . . . . . . . . . . . . . . . . . 2
General information. . . . . . . . . . . . . . . . . . . . . . . . . 2
Slider bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Information bar. . . . . . . . . . . . . . . . . . . . . . . . . . .3
Manual conventions . . . . . . . . . . . . . . . . . . . . . . . 3
Save and exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Exit without saving . . . . . . . . . . . . . . . . . . . . . . . .3
Soft keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
General operation . . . . . . . . . . . . . . . . . . . . . . . . 3
Other functions. . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Front panel dedicated keys. . . . . . . . . . . . . . . . . . . 5
Sleep mode key . . . . . . . . . . . . . . . . . . . . . . . . . 5
abs/inc key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
in/mm key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Ref key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Alphanumeric keypad . . . . . . . . . . . . . . . . . . . . . . . 6
Numeric keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Navigation keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setup mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
No. of axis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Sleep mode time (min). . . . . . . . . . . . . . . . . . . . .9
Key beep enable . . . . . . . . . . . . . . . . . . . . . . . . . 9
Zero app. beep en . . . . . . . . . . . . . . . . . . . . . . . . 9
Zero app. tolerance . . . . . . . . . . . . . . . . . . . . . . . 9
Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Select axis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Machine model. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Auxiliary setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Set factory settings. . . . . . . . . . . . . . . . . . . . . . . .12
Applying compensation. . . . . . . . . . . . . . . . . . . . . . 12
Error descriptions. . . . . . . . . . . . . . . . . . . . . . . . . 12
Calibrate axis . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Linear compensation . . . . . . . . . . . . . . . . . . . . . . 14
Segmented compensation . . . . . . . . . . . . . . . . . . 15
Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Absolute mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Incremental mode . . . . . . . . . . . . . . . . . . . . . . . . . .17
Inch and mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Loading an axis. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Preset mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Referencing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Setting the machine reference . . . . . . . . . . . . . . . 18
Finding the machine reference. . . . . . . . . . . . . . . 19
Digital encoder reference. . . . . . . . . . . . . . . . . . . 19
Graphical zoom. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Calculator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ii
Contents
Mill functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Bolt hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Line hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Arc contouring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
R-function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Pocket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Polar coordinates . . . . . . . . . . . . . . . . . . . . . . . . . .27
Axis summing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Zero approach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Job timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Probe function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Datum axis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Linear measurement mode . . . . . . . . . . . . . . . . . 29
Angle measurement mode. . . . . . . . . . . . . . . . . .29
Diameter measurement mode . . . . . . . . . . . . . . . 30
Lathe functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Summing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Vectoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Taper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Zero approach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Job timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Generic functions . . . . . . . . . . . . . . . . . . . . . . . . . 33
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Mill mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Lathe mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Sub datums. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Creating a job. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Editing a job . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Using sub datums . . . . . . . . . . . . . . . . . . . . . . . . 37
Auxiliary function. . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1
Introduction
Introduction
This chapter describes the basics of the DP900 DRO.
The DP900 is available with 2, 3 or 4-axes of encoders. The 4th, 'W', axis
can be a Newall Spherosyn/Microsyn (analog) or an RS422 TTL
diferential (digital) depending on the specific unit. You can set the RS422
TTL W-axis to show linear or angular measurement.
Depending on the options that you choose, there may also be extra
connections for a probe and an auxiliary input/output port.
The mains on/off switch is at the rear of the unit, see the diagram on
page 1.
You should always connect the equipotential terminal to the machine
ground to ensure that the displays are stable.
Front
Back
Numeric keys
Slider bar
Display screen
Navigation keys
Function keys
Soft keys
Power on/off
Power inlet Earth terminal 1st, 2nd & 3rd axis -
Newall encoders
USB ‘B’ type
Probe inputAuxiliary input/output
4th axis (Newall encoder) or
RS422 encoder input

2
Introduction
Screen layout
Using the Help system
The DP900 has a comprehensive context-sensitive help system.
The [help] key takes you to context-sensitive help so you can find the
specific information you require quickly without the need to search through
pages of information. If you press the [help] key while you are performing
a particular operation, then you see the help screen for the function that
you are currentlyusing. You can also navigate to other topics, by pressing
from within the Help function. This takes you to a list of contents, from
where you can select the subject that you want.
The Help menus use a principle similar to HTML hyperlinks such that any
item described within the Help text that isenclosed within angled brackets,
<>, acts as a link. You can page through help pages using the up and
down navigation keys and through the links using the left and right
navigation keys. When you select a link, the text inverts. You press the
[enter] key or the [arrow-centre] key to jump to that help page. When you
have followed links, you can press to move back through previous
pages.
When you have finished with the help, press to return to the
operation you were performing.
General information
• You enter numeric values using the keypad.
• You use the [enter] key to confirm your numeric entry and return to the
previous screen while saving the parameters.
• You use the [ce] key to clear your numeric entries and return to the
previous screen without saving the parameters.
• The {soft key} labels show the various functions available. You select
these by pressing the corresponding key below the label. There are
two levels of soft keys, which you access using the left and right
navigation keys.
• You use the up and down navigation keys to move between different
fields within forms or list boxes.
Slider bar
Unlike a conventional DRO there are no dedicated axis key positions.
Instead, there is a slider bar that can be used in a far more flexible
manner.
In normal operation, you press the region of the slider bar next to the
displayed axis value for it to act in the same manner as a traditional axis
key. This allows for zeroing or loading values into that axis. However, in
some modes the axis position display can move to make room for
graphics or additional information. When this happens, the axis active
position on the slider bar moves to remain next to the axis displayed value
ZeroApproach
Bar Graph
Measurement
Unit ABS/INC
Mode
Display Area
Tool No. Feed Rate Set/Zero Mode
Axis Labels
Soft Key
Labels

3
Introduction
on the screen. In some modes, you can use the slider bar to scroll through
lists of data in much the same manner as on a PC.
The flexibility of the slider bar also means that for some complex
functions, such as the calculator function, additional soft keys can be
made available.
Information bar
The top of the DP900 graphical display shows the current user basic
display options. It also shows the current Feed-rate, Tool selection and
simple messages. For example, if you press a key with no allocated
function, the display shows 'Illegal key'. The message remains for a few
seconds before automatically clearing and it is accompanied by two short
beeps.
Manual conventions
In this manual, the following notations are used:
[name] denotes a dedicated key name.
{name} denotes a soft key name.
Save and exit
In Setup mode, if you make changes and want these to be stored
permanently you need to select 'Save and Exit'. Pressing then
saves your changes and you leave Setup mode.
Exit without saving
In Setup mode, if you have made changes but do not want them to be
actioned you need to select 'Exit without Saving'. When you press
you leave Setup mode without saving or actioning any changes.
Soft keys
General operation
The order of the soft keys changes according to whether you have
selected Mill or Lathe as your machine model. You press the right
navigation key to scroll through all the available soft keys.
Func ( ). You use this to display a machine-specific functions list. This
is explained in more detail in Lathe functions, Mill functions and Generic
functions.
Set/Zero ( ). You use this to toggle between Setting and Zeroing an
axis on the axis keys.
Tools ( and ). You use this to enter the Tools Setup. This is
explained in more detail in Tools on page 33.
Rad/Dia (Lathe mode only) ( ). You use this key is to toggle any axis
that you have defined as diameter (dia) in Setup mode, between radius
and diameter display on the screen. All axes that you defined as radius
(rad) in Setup mode are unaffected. When an axis is in diameter display
mode a small diameter symbol is shown against the axis value.
Preset ( ). You use this to enter the Preset or ‘Distance to go’ mode.
This is explained in more detail in Preset mode on page 17.
Half Function ( ). This is also known as Centerfind. You use this to
reduce the value of the selected axis by half.
The reference position is lost when you use this function.
Sub Datums ( ). You use this to enter the Sub Datum Function. This
is explained in more detail in Sub datums on page 36.

4
Introduction
Calculator ( ). You use this to enter the Calculator function. This is
explained in detail in Calculator on page 20.
Contrast up ( ). You use this to increase the contrast.
Contrast down ( ). You use this to decrease the contrast.
Probe ( ). You use this to execute the Probe function. This is explained in
detail in Probe function on page 28.
Setup ( ).You use thistoenter the Setup function.Thisisa protected
mode, so you need to enter a password to enter it. You use it to change
the DRO settings. This is explained in detail in Setup mode.
You use the left and right navigation keys to switch between different soft
key levels.
Other functions
Run ( ). Once you have configured the parameter values for an
operation, you run the operation by pressing .
Cancel ( ). You use this key to stop the current operation without
saving any changes.
Done ( ). You use this key to save and complete the data entry.
New ( ). You use this key to define a new job starting with the default
parameters for that particular function. If you choose to save the job later
then you can do so. The DP900 can save and recall up to 20 programs for
each major function.
Recall ( ). The DP900 can save and recall up to 20 programs for
each major function. For example, you can have 20 bolt hole circles, 20
grid arrays, 20 line holes, etc. This means that for repetitive jobs there is
no need to re-enter the data each time. Instead you canrecallthe jobfrom
a list. Pressing brings up a list of known job programs for that
function. You use the up and down navigation keys to highlight the
required job.
Delete ( ). You use this key to remove programs, jobs or tools that
you no longer require. When you press you are prompted for
confirmation: or . If you select , then the item is permanently
deleted and cannot be retrieved.
Save ( ). You press to save any changes you have made.
Copy ( ). If you need a new program that is similar to an existing
one then you can copy the original program, and then rename it. Use the
up and down navigation keys to find the program or job that you want to
copy. When the name of the existing program or job is highlighted, press
. This brings up the virtual keypad, so that you can enter a new
alpha-numeric name.
Rename ( ). If you need to rename a program or job, use the up and
down navigation keys to find the program or job that you want to rename.
When the name of the existing program or job is highlighted, press the
{rename} key. This brings up the virtual keypad, so that you can enter a
new alpha-numeric name.
D.Base. You use this key to open the DP900’s databases. Here you can
find information on tap sizes and clearance drills in both imperial and
metric formats.
Select ( ). You use this key on the alpha-numeric keypad to select
the highlighted character. You can also use the [arrow-centre] key.

5
Introduction
Upper ( ). You use this key on the alpha-numeric keypad to show
capital letters.
Lower ( ). You use this key on the alpha-numeric keypad to show
lower case letters.
Next ( ). You use this key to move to the next point or position.
Prev ( ). You use this key to move to the previous point or position.
Content ( ). You use this key in Help to return to the root Help menu.
Front panel dedicated keys
Sleep mode key
This temporarily turns off the display and keyboard. All other settings are
preserved. Encoder movement is still monitored while in sleep mode.
Press this key again to exit sleep mode. The LED on the front panel
flashes to indicate that the DRO is in sleep mode.
You can also select an integer value ranging from a minimum of 5 minutes
to a maximum of 120 minutes to select the sleep mode timer. The DRO
automatically goes into sleep mode if no operation is done during that
elapsed time.
abs/inc key
You use this key to toggle between Absolute mode and Incremental mode.
in/mm key
You use this key to toggle the display units between inches and
millimeters.
Ref key
You use the [ref] key to activate the Digifind feature, which you use to
recall a previously set reference (home) position. There are two types of
reference positions:
• Homing: This is the position that was most recently set in absolute
mode.
• Machine Reference (M/C Ref): This is the machine's permanent home
position. You set it up in Setup > Axis Settings > Machine Reference.
You should make a permanent mark on the machine when setting
reference points. If the axis has been moved while the DP900 power was
off, you can recall your reference positions using Digifind.
The display must be in absolute mode to use Digifind.
To use Digifind:
1. Press the [ref] key.
2. Set the axis close to the marked datum, to within:
6.3mm (0.25") for a Spherosyn encoder or
2.5mm (0.1") for a Microsyn encoder.
3. Select the {homing} or {M/C Ref} soft key.
4. The DP900 displays 'Select axis'.
Press the slider bar close to the respective axis.
The DP900 displays 'Referencing', and the axis you selected shows
'Homing' or 'M/C Reference'.

6
Introduction
5. Press the slider bar next to the respective axis again. The current
position is updated, and Digifind is complete.
Before you can use Digifind to find the Machine reference, you need to
define it in Setup mode > Select axis. The procedure is explained in
Setting the machine reference on page 18.
Alphanumeric keypad
You can give function programs and tools meaningful names. This means
that you can give names to items that have a direct relationship to the task
or tool. These could be company names, drawing numbers or customer
job references. You can use any combination of numbers, alphabetical
characters and some special characters, to a maximum of 12 characters.
When you need to enter an alphanumeric name the DP900 displays the
Data Entry screen showing all the available characters. You navigate
around these characters using the four navigation keys. Pressing
selects the highlighted character. If you enter the wrong character, you
can delete it by pressing the [ce] key.
Press to change the characters from a-z to A-Z and press
to change the characters from A-Z to a-z.
You can enter numbers directly using the numeric keypad.
Numeric keypad
This appears on the right hand side of the DRO. You use it to enter
numerical values. It also has a +/- key to enter positive and negative
numbers, and a decimal point key to enter decimal values. If you enter an
incorrect digit you can press the [ce] to delete each number in turn. If you
press the [ce] key when no numbers remain, the DRO stops the number
input operation. Press the [enter] key to confirm the number entry.
Navigation keys
The DP900 has four arrow keys that you use to navigate around the
screen. In this manual these are referred to as the navigation keys. These
keys are as follows:
• The left and right keys move you between the soft key pages when
there are multiple pages.
• The up and down arrows move you through pages of on-screen
information when there is more information than can be fitted on a
single screen.
• In graphical run-time modes, you use the up and down keys to select
the level of graphical zoom.
• When you are in conventional mode and operating a positioning
function such as Sub Datums, you use the up and down keys to move
between the next and previous datum or target points.
• In the middle of the four arrow keys is a circular key, this acts as an
enter key. It is referred to in the text as the [arrow-centre] key.

7
Specifications
Spec ification s
Encoder inputs
*TTL = 5V A quad B differential (RS422)
Mains supply 90…265V AC
50…60Hz
Fuse ratings T800mA
20mm length
Power consumption 20W
Operating temperature 0°C to 45°C
Storage temperature -20°C to 70°C
Relative humidity Max 85% non-condensing
Dimensions 280mm × 180mm × 75mm
(L × H × D)
Weight 1.9 Kg
Display 5.7" STN type monochrome LCD
Model Spherosyn/Microsyn** TTL*
DP900211000 X, Y —
DP90031110
DP90031110A X, Y, Z —
DP90041111A X, Y, Z, W —
DP9004111DA X, Y, Z W
Model Spherosyn/Microsyn** TTL*
A
A
B
B
R
R