DRO300 Digital Readout


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Product Manual

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Register your DRO300 here!

The most complete digital readout system in the machine tool marketplace, the DRO300 has full part program capability, 99 tool offsets and multiple DRO displays along with standard input/output capability and edgefinder probe support all on an easy to read 7-inch color display. Designed and manufactured in the USA, ACU-RITE readouts are the first choice of machine tool builders and users alike.

 

DRO300 dynamic zoom 4X displayDRO300 installation guide displayDRO300 night mode 4X display

Dynamic zoom


The currently moving axis can be geographically highlighted. In “dynamic zoom” mode, the position value is zoomed to its maximum size depending on the number of digits. This greatly improves legibility—especially from a great distance.

Installation guide


When you switch on the digital readout for the first time, the DRO300 supports you with an installation guide. You are led step by step through the most important settings until the device is ready for operation.

Day/night switching


Depending on the ambient-light conditions at the machine, you can switch the screen of the DRO300 to a light or dark background.
DRO300 Circle patternDRO 300 Taper Calculator

Milling Specific Features



  • Bolthole pattern calculations with graphics (full and partial circles/linear patterns)

  • Centerline calculation enables you to establish workpiece zero and midpoints

  • Edge finder input

  • I/O (option)

Turning Specific Features



  • Lock axis feature

  • Instant radius/diameter conversion

  • Taper Calculator

  • CSS (option)

Specifications

Application Milling, turning, grinding, boring and general purpose
Axes 2, 3, and 4 from A to Z and Z0
Encoder Inputs TTL
Display Step
  • Adjustable, max. 7 digits
  • Linear axis: 1 mm to 0.0001 mm
  • Angular axis: 1° to 0.001° (00° 00′ 01”)
Display
  • 3 Axes (DRO303) or 4 Axes (DRO304)
  • 7-inch color wide screen (15:9)\
  • Resolution 800 x 480 pixels for Position Values, Dialog Messages, Input and Graphic Functions
Status Display
  • Tool
  • Reference point
  • Operating function
  • Feed rate
  • ABS/INC
  • mm/inch
  • Stopwatch
Axis Display Standard
Common Functions
  • Multiple Display Views – DRO1, DRO2 & DRO3
  • Program Storage
  • Advanced Skew Compensation
  • Job Clock / Stop Watch
  • Feed Rate Display
  • Multiple Language Support
  • Absolute/Incremental
  • Near-Zero Warning with Graphics
  • Help function
  • 99 Tool Offsets/Diameter
  • Preset and Zero Reset
  • 4 Function Calculator/Trig Calculator
  • Instant Inch/mm Conversion
  • Position-Trac™ Home Reference System
  • Linear/non-linear compensation up to ±9,999 ppm
Turning Specific Functions
  • Lock Axis Feature establish tool offsets with the tool under load, resulting in reduced tool deflection
  • Instant radius / diameter conversion
  • Taper calculator, Vectoring
  • INCLUDES Thread Assist simplify cutting metric threads on lathes with English leadscrews
Milling Specific Functions
  • Bolt-hole Pattern Calculations with Graphics (full and partial circles/linear patterns)
  • Centerline Calculation establish workpiece zero and midpoints
  • Edge finder/touch probe input
Cycles Oblique line, circular arcs; only for milling, drilling, boring:circular and linear hole patterns
Error Compensation
  • Axis error: Linear and nonlinear over up to 200 points
  • Backlash compensation: for compensation of reversal error
Data Interface USB 2.0 type C

  • For Output of Parameters to a USB Stick or PC
  • For Input of Parameters, Remote Control of Keys and Commands
Switching I/O
  • Input for Edge Finder (with switching signal or contact triggering)
  • Further input/outputs over the IOB 49 external input/output unit
Options
  • CSS (Constant surface speed), I/O (Input/Output)
  • Multiple Scale Coupling Box
  • Electronic Edgefinder
  • Single-Position Tilting Base, Multiposition Holder, Mounting Frame, Protective Cover
  • IB2X (allows input of 2 additional axis)
Electrical Requirements AC 100 V to 240 V (±10 %), 50 Hz to 60 Hz (±5 %), ≤ 33 W
Operating Temperature 0° to 45º C (32º to 113º F)
Protection EN60529 IP 40, Front Panel IP 54
Weight ~1.9 kg