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DP700 Digital Readout

DP700 Digital Readout
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DP700 Digital Readout

Product catalog summary
Specifications
The DP700 Digital Readout (DRO) system is compatible with Newall Spherosyn and Microsyn encoders, operating on 15-24VDC and adhering to the EU Low Voltage Directive. It measures 170mm x 260mm x 48mm and weighs 1.5kg. It functions in temperatures from -10°C to 50°C and is IP54 rated for panel mount and IP40 for standalone use.
Mounting Options
The DP700 offers flexible mounting configurations including mill, lathe, adjustable, and panel mounts.
Connection Details
Secure cable connections and grounding are essential. It supports RS232 connections for data output.
Display and Keypad
The display shows axis positions and feed rates, while the keypad facilitates axis selection, numeric entry, and function navigation, supporting absolute/incremental modes and inch/mm displays.
Setup Procedures
Setup includes configuring language, encoder type, resolution, travel direction, and zero approach settings. Error compensation can be linear or segmented.
Functions
The DP700 supports absolute/incremental measurement, zero/preset axis, undo, center find, and RS232 data output. Milling and lathe functions include pitch circle diameter, line hole, arc contouring, polar coordinates, tool offsets, and taper.
Error Compensation
Maintains accuracy through linear or segmented error compensation methods.
Troubleshooting
Guidance is provided for resolving common issues to ensure system accuracy.
Segmented Error Compensation
Involves setting up correction points for accurate measurements using display prompts.
Plane Setup
Allows selection of operational planes for 3-axis units.
Beep Setup
Enables or disables audible tones for key presses.
Functions Setup
Users can enable specific functions like tool offsets, taper, and RS232 data logging.
Reset Setup
Allows resetting to factory defaults, with options for generic, lathe, or mill defaults.
Sleep Setup
Defines automatic sleep mode after inactivity.
Standard Functions
Supports absolute/incremental modes, inch/mm measurements, and zero/preset modes.
Undo Function
Stores the last 10 positions or inputs for undoing actions.
Half Function / Centre Find
Halves axis values for center point finding.
Digifind / Reference Function
Maintains position and datum setup for quick recovery.
Sub Datums / Memory
Stores up to 200 sub-datum positions for efficient machining.
RS232 (Data Logging) / Data Acquisition
Offers basic serial communications for data logging.
PCD / Bolt Hole Circle
Calculates positions for equally spaced holes around a circle.
Mill Functions
  • Line Hole Function: Calculates positions for holes along a line.
  • Arc Contouring: Calculates positions for machining arcs or radii.
  • Polar Coordinates: Converts Cartesian to polar coordinates.
Lathe Functions
  • Tool Offsets: Stores offsets for up to 50 tools.
  • Multiple Tool Datums: Allows independent datums for each tool.
  • Taper Function: Displays angular displacement.
  • Summing Function: Displays the sum of two axes.
Troubleshooting Guide
Solutions for issues like blank displays and erratic readings.
Contact Information
Contact details for Newall Measurement Systems in various regions.
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Catalog excerpts

DP700 Digital Readout-2

Contents Specification Electrical Physical Environment Accreditation Disposal Input and Resolution Page 3 Page 3 Page 3 Page 3 Page 3 Page 3 Page 3 Mounting Options Mill Mount Lathe Mount Adjustable Mount Panel Mount Page 4 Page 4 Page 4 Page 4 Page 4 Connection Details Important Information Connections Page 5 Page 5 Page 5 Display and Keypad Understanding the Display Understanding the Keypad Page 6 Page 6 Page 6 Setting up the Unit Navigating Complete Setup Navigating Complete Setup (Continued) Language Setup Type Setup Encoder Type Setup Encoder Resolution Setup Direction of Travel Setup Radius...

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DP700 Digital Readout-3

Specification Electrical EU Directive 73/23/EEC (Low Voltage Directive) BS EN 55022:1998 Class B BS EN 55024:1998 Input to Power Supply Unit (Supplied) 100-240V (47-63Hz) External switch-mode - Output voltage 15VDC Input Voltage to DP700 15-24VDC ±10% Conforms to Low Voltage Directive Physical Height Width Depth Weight Environmental Climatic Range Storage Temperature Working Temperature Working Humidity IP-Ingress Protection IP54 Panel Mount IP40 Stand Alone Accreditation CE Disposal At the end of its life, you should dispose of the DP700 system in a safe manner applicable to electrical goods...

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DP700 Digital Readout-4

Mounting Options This chapter details the various mounting options for the DP700, both the standard version and the panel mount version. Mill Mount (Non Adjustable) Lathe Mount (Non Adjustable) Adjustable Mount Options Panel Mount Option Panel Panel cut Cutout Det out 250.00 Fixing Ctrs.

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DP700 Digital Readout-5

Connection Details This chapter details the cable connections for the DP700. Important Details You can only use the DP700 with Newall Spherosyn and Microsyn analogue encoders. You need to ensure that: You secure all the cables to prevent the connectors from dropping into hazardous positions (for example the floor or coolant tray) when you unplug them. You route all cables to prevent them from being caught on moving parts. The DP700 is grounded to the machine, using the braided grounding lead provided, before you turn on the machine supply. The power has been disconnected, before you connect the...

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DP700 Digital Readout-6

Display and Keypad This chapter explains how to interpret the display and use the keypad. Understanding The Display Feed Rate Display: mm per second for mm mode, inches per minute for inch mode Message Display Understanding The Keypad Axis Selection Key Digifind / Reference Switches between Zero and Axis Preset modes Numeric Keys Switches between Absolute and Incremental modes Switches between Inch and mm display Clear Numeric Entry Centre Find Undo Key Information selection (scrolls through options on Message display) Function Menu Key Function Navigation Keys

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DP700 Digital Readout-7

Setting Up The Unit Navigating Complete Setup How to enter setup Until display shows setup language Note: Other languages may be available setup type setup encoder setup res funcs setup Unit then displays Eng us francais deutsch italiano russian dansk czech espanol turkce portugue setup measure setup code? user defined, use numeric keypad to enter value none linear segments Dependant on encoder (see page 2)

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DP700 Digital Readout-8

Setting Up The Unit Navigating Complete Setup (continued) Only applicable to 3 axes units setup plane setup funcs setup beep setup sleep off user defined, use numeric keypad to enter value (value is in whole minutes) setup reset reset as To exit setup

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DP700 Digital Readout-9

Setting Up The Unit Language Setup This setting enables the user to choose the language that is required to be displayed in the DP700 display. There are 11 language settings: Eng gb English UK (Default) Eng us francais deutsch italiano English US French German Italian dansk Danish portugue Portuguese e s p a n o l Spanish turkce Turkish Press the axis select key russian czech Russian Czech Note: Other languages may be t available next to the ‘X’ axis to cycle through options Type Setup This setting enables the user to choose the machine type that the DP700 operates in. There are 3 settings: Press...

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DP700 Digital Readout-10

Setting Up The Unit Direction of Travel Setup You use the direction setting to match the DP700 to the actual direction of travel of any axis. There are two settings for each axis Press the axis select key next to the ‘X’, ‘Y’ or ‘Z’ axis to cycle through options Example If the current setting is the setting to and the travel is positive from right to left, changing will reverse the direction to measure positive from left to right. Radius / Diameter (measure Setup) The radius/diameter function allows the operator to display actual (radius) or twice-actual (diameter) measurements for each axis....

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DP700 Digital Readout-11

Setting Up The Unit Error Compensation Your digital readout (DRO) system helps you to improve productivity. It decreases the number of scrapped parts, as you no longer have to be concerned about making mistakes related to counting the revolutions on the dials. Your DRO system also helps to eliminate some errors related to ballscrew backlash. Your DRO system will operate to its published accuracy, provided all components are in working order and properly installed. Field calibration is not necessary. Accuracy problems with machined parts may be caused by machine error, DRO system error, or a combination...

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DP700 Digital Readout-12

Setting Up The Unit Types of Machine Error There are many types of machine error, including pitch, roll, yaw, flatness, straightness, and Abbé error. The diagrams below demonstrate these errors. Abbé error Roll Axis Travel Pitch Axis greater than Linear encoder less than encoder A2 Linear encoder Flatness Typical Pitch Deviation Shown with encoder on concave side of bearing path Shown with encoder on convex side of bearing path Linear Error Compensation In this mode, you can apply a single constant correction factor for each axis to all displayed measurements. You calculate the correction factor,...

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DP700 Digital Readout-13

Setting Up The Unit Linear Error Compensation Setup This setting allows you to setup compensation factors for linear errors. There are two methods of entering compensation values Teach mode and Program mode. Teach Mode Teach mode is an easier way of calculating linear errors by using the DP700 to automatically calculate the error, by comparing the actual measurement and the physical movement. The procedure to do this is shown below. Error comp select screen is displayed Press the axis select key next to the ‘X’, ‘Y’ or ‘Z’ axis which requires linear compensation Move tool / probe to start position...

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