Digital Readouts Linear Encoders for Manually Operated Machine Tools September 2011
Digital readouts from ACU-RITE make your manually operated machine tools more profitable, improve productivity, and raise the quality of the machined workpiece. The large LCD display clearly shows the actual axis positions. The context-sensitive graphical user guidance makes working with digital readouts from ACU-RITE a pleasure. Together with the linear scales from ACU-RITE they form an economic and effective package solution for initial setup or retrofitting on your machine tool.
Contents Digital Readouts Overview Functions Specifications Accessories 4 Probing Functions for Datums (200S, 300S) 6 Tool Compensation (VUE, 200S, 300S) 6 Distance-to-Go Display (VUE, 200S, 300S) 7 Contour Monitoring (VUE, 300S) 7 Hole Patterns (VUE, 200S, 300S) 8 Programming of Machining Steps (300S) 8 Help for Working with Lathes (VUE, 200S, 300S) 9 VUE – Simple Position Display for Two and Three Axes 10 200S – Flexible Position Display for Two and Three Axes 12 300S – The Programma
Selection Guide VUE Number of axes Reference points/ Tool data Functions 2 or 3 10 datums; 16 tools General: • Distance-to-go display with graphic positioning aid Digital readout for milling, drilling and boring machines, as well as lathes, with two or three axes • Monochrome screen • Membrane keyboard Milling and drilling: • Tool radius compensation • Hole patterns (circular and linear patterns) • Inclined or arc milling Turning: • Taper calculator • Radius/diameter display • Separate and sum disp
Encoder inputs Switching inputs/ outputs Data interface Model Page « TTL – USB VUE 10 « TTL For KT edge finder; RS-232-C/ more through IOB 49 V.24 200S 12 « TTL For KT edge finder; RS-232-C/ more through IOB 49 V.
Functions – Probing Functions for Datums (200S, 300S) – Tool Compensation (VUE, 200S, 300S) Easy setup with probing functions A very useful accessory for datum setting is the HEIDENHAIN KT edge finder: Simply move the edge finder toward a side of the workpiece until the stylus deflects. The counter automatically stores the exact position, taking into account the direction of approach and the radius of the stylus.
– Distance-to-Go Display (VUE, 200S, 300S) – Contour Monitoring (VUE, 300S) Distance-to-go display for turning and milling The distance-to-go display feature simplifies your work considerably: you enter the next nominal position, and the display shows you the distance remaining to the target position. This means, you simply traverse to the display value zero. The displays for milling can also compensate the cutter radius.
Functions – Hole Patterns (VUE, 200S, 300S) – Programming of Machining Steps (300S) Automatic calculation of bolt hole patterns for milling and drilling In milling machine mode you can machine bolt hole circles (full circle or circle segments) and linear hole patterns without having to calculate: You simply enter the geometric dimensions and the number of holes from the drawing. The display calculates the coordinates of the individual holes in the working plane.
– Help for Working with Lathes (VUE, 200S, 300S) Radius/diameter display In the lathe mode you can see the positions of the transverse axis in either radius or diameter values. You can switch at a keystroke. Sum display of longitudinal axes In lathe mode, the positions of the saddle and the top slide are displayed either separately or as the sum of both values. • If you select separate displays, the position values are referenced to the datum for each individual axis.
VUE – Simple Digital Readout for Two or Three Axes The VUE position displays from ACU-RITE are suited for use on manually operated milling, drilling, boring machines and lathes with two or three axes. Description With its sturdy housing and splash-proof membrane keyboard, the VUE is built for the workshop. The VUE shows display position values, the soft-key row and other useful information on a monochrome graphic screen.
VUE Axes* 2 or 3 from A to Z and ZO Encoder inputs « TTL Display step1) Adjustable, max. 7 digits Linear axis: 1 mm to 0.000 1 mm Angular axis: 1° to 0.001° (00° 00‘ 01“) Display 5.
200S – Flexible Digital Readout for Two or Three Axes The ACU-RITE 200S digital readout is especially suited for use on milling, drilling and boring machines and lathes with up to three axes. A separate I/O unit provides switching input/outputs for simple tasks in automation. Description The 200S display unit is designed as a sturdy upright unit with splash-proof fulltravel keypad for use in a workshop.
200S Axes* 2 or 3 from A to Z and ZO Encoder inputs « TTL Display step1) Adjustable, max. 7 digits Linear axis: 1 mm to 0.000 1 mm Angular axis: 1° to 0.001° (00° 00‘ 01“) Display 5.
300S – Programmable Digital Readout for up to 4 Axes The 300S digital readout from ACU-RITE is a versatile display unit designed primarily for milling machines, drilling and boring machines and lathes with up to 4 axes. A separate I/O unit provides switching input/ outputs for simple tasks in automation. Description The 3000S display unit is designed as a sturdy upright unit with splash-proof fulltravel keypad for use in the workshop.
300S Axes 4 from A to Z and ZO Encoder inputs « TTL Display step1) Adjustable, max. 7 digits Linear axis: 1 mm to 0.000 1 mm Angular axis: 1° to 0.001° (00° 00‘ 01“) Display 5.
Accessories – Edge Finder KT 130 edge finder For any workpiece materials With spiral cable ID 283 273-S1 The KT 130 is a 3-D triggering edge finder. This means it can also be used for nonconducting materials. The stylus is deflected when it contacts the workpiece, and the edge finder sends a triggering signal over the connecting cable to the 200S or 300S digital readout. The KT 130 edge finder allows you to set reference points quickly and easily, without leaving marks on the workpiece.
– Mounting Components The 200S and 300S digital readouts were conceived as upright units.
Accessories – Mounting Components You can use the mounting arm to easily place the display at a conveniently operable position. It can be attached to the machine either with a mounting bracket or directly. The display is attached to the mounting arm by its own tilt/swivel mount.
Mounting arm D Accessory for VUE, 200S, 300S ID 683 668-01 Consists of 683 663-01, 683 673-01 and 683 674-01 Parts a) U-section with tilt/swivel assembly Fits mounting arms A and B ID 683 669-01 b) Extension Fits mounting arms A and B ID 683 673-01 c) Mounting bracket Fits mounting arms A and B ID 683 674-01 Mounting arm E Accessory for 200S, 300S ID 683 672-01 The digital readout can be locked in various positions over two ball joints. Overall height approx.
Accessories – IOB 49 External Input/Output Unit for 200S/300S The 200S/300S provide applicationdependent additional functions that are available when the IOB 49 external input/ output unit is connected. IOB 49 external input/output unit ID 532 900-01 The IOB 49 input/output unit is attached to a standard NS 35 rail (DIN 46 227 or EN 50 022). It is connected to the 200S/300S using the touch probe input. LEDs show the power supply, the data transmission and the status of the inputs and outputs.
Switching outputs The IOB 49 features nine floating relay outputs. X103 Readiness The readiness output is at LOW level if the 200S/300S cannot operate the IOB (e.g. not switched on, cable disconnected). Switching functions (milling mode) One or more switching ranges or switching points can be defined for an axis. Switchoff ranges lie symmetrically to the 0 display value. If switching points are used, the relay activates when the position display reaches a specific value.
Interfaces – Digital Readouts Pin layout of encoders « TTL Mating connector: 9-pin D-sub connector (male) Power supply « TTL Incremental signals 7 6 2 UP 0V Ua1 3 Others 4 5 8 9 1 Ua2 £ Ua0 ¤ / Shield on housing; UP = Power supply voltage KT 130 edge finder (only 200S, 300S) Pin Assignment A 15-pin D-sub connection is provided for the KT 130 edge finder.
RS-232-C/V.24 (only 200S, 300S) This serial interface follows the EIA standard RS-232-C and the CCITT standard V.24. It uses a 9-pin D-sub female connection. The data are transferred in ASCII code. The data format is adjustable.
Linear Encoders – for Manually Operated Machine Tools For typical applications on manual machine tools such as milling machines or lathes, display steps of 10 µm are sufficient. This is provided by the linear encoder of the SENC 50 and SENC 150 series without interpolation. Jig boring machines, grinding machines, and measuring and inspection tasks normally require display steps of 1 µm and better.
Mounting Information SENC 50 This linear encoder with small cross section is fastened at points on a machined surface. With a back-up spar, only two points, one at each end, are sufficient. For mounting without back-up spar, an intermediate support is required in addition. The encoder is mounted so that the sealing lips are directed downward or away from splashwater. Mounting When mounting, the scale unit must be aligned at several points along the machine guideway.
SENC 50 Incremental linear encoder • Extremely compact dimensions • Measuring steps 5 µm to 0.5 µm  ML = Measuring length P = Gauging points for alignment s = Beginning of measuring length k = Required mating dimensions À = M4 nut usable Á = For aligning the back-up spar  = Direction of scanning head motion for output signals in accordance with interface description 26 ML (mm) 50 75 100 125 150 175 200 225 250 275 300 325 350 375 425 475 525 LL (inch) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 18 20 L 143.
Specifications SENC 50 Measuring standard Glass scale with incremental graduation Accuracy grade ± 3 µm Measuring length ML* Back-up spar* optional 50 75 100 125 475 525 150 175 200 225 250 275 300 325 350 Incremental signals* « TTL « TTL x 5 « TTL x 10 Grating period Integrated interpolation Signal period 20 µm None 20 µm 20 µm 5-fold 4 µm 20 µm 10-fold 2 µm Measuring step1) 5 µm 1 µm 0.5 µm Reference marks Distance-coded Power supply Without load 5.1 V DC ± 0.
SENC 150 Incremental linear encoder • Sturdy design • Measuring lengths up to 3 m • Measuring steps 5 µm to 0.5 µm À = For ML ‡ 625 mm/24 inches to † 1550 mm/ 60 inches use mid-point fastening ML = Measuring length P = Gauging points for alignment s = Beginning of measuring length k = Required mating dimensions ML (mm) LL (inch) L 75 2 211.12/8.31" 100 3 236.52/9.31" 125 4 261.92/10.31" 150 5 287.32/11.31" 175 6 312.72/12.31" 225 8 363.52/14.31" 275 10 414.32/14.31" 300 11 439.72/17.31" 325 12 465.12/18.
SENC 150 Measuring standard Glass scale with incremental graduation Accuracy grade ± 5 µm Measuring length ML* Back-up spar* optional 75 100 125 150 625 675 725 775 175 825 225 875 275 925 300 950 325 350 375 400 425 475 525 1 000 1 050 1 100 1 250 1 350 1 400 1 550 Back-up spar included in items supplied 1 675 1 850 2 000 2 150 2 300 2 575 2 825 3 075 Incremental signals* « TTL « TTL x 5 « TTL x 10 Grating period Integrated interpolation Signal period 20 µm None 20 µm 20 µm 5-fold 4 µm 20
Interfaces Incremental Signals « TTL ACU-RITE encoders with « TTL interface incorporate electronics that digitize sinusoidal scanning signals with or without interpolation. Interface Square-wave signals « TTL Incremental signals 2 square-wave signals Ua1, Ua2 and their inverted signals ,£ The incremental signals are transmitted as the square-wave pulse trains Ua1 and Ua2, phase-shifted by 90° elec.
Electrical Connection Cables Extension cables for SENC ACU-RITE linear encoders feature cables with D-sub connector for direct connection to ACU-RITE digital readouts. The exact length of the cable can be found in the Specifications. If the cable length is insufficient, extension cables are offered complete with connectors. Upon request you can also order adapter cables for connection to discontinued ACU-RITE products.
DR. JOHANNES HEIDENHAIN GmbH Dr.-Johannes-Heidenhain-Straße 5 83301 Traunreut, Germany { +49 8669 31-0 | +49 8669 5061 E-mail: acu-rite@heidenhain.de www.acu-rite.de United Kingdom HEIDENHAIN (G.B.) Limited 200 London Road, Burgess Hill West Sussex RH15 9RD, United Kingdom { +44 1444 247711 | +44 1444 870024 www.heidenhain.co.uk France HEIDENHAIN FRANCE sarl 2 avenue de la Cristallerie 92310 Sèvres, France { +33 0141143000 | +33 0141143030 www.heidenhain.
