Mini position indicator

Transcription

1 SERIES Z Mini position indicator with magnetic length measuring system (ELGO sensor MS20.60 and magnetic tape MB20.50) With sign 5 digits pulse factor Programmable decimal point Digital brightness control Z D-f ELGO-Electric GmbH D Rielasingen, Post box 11 30, Carl - Benz - Straße 1 Phone: / , Fax: / info@elgo.de Internet

2 1. INTRODUCTION 3 2. OPERATING INSTRUCTIONS 3 3. THE MAGNETIC LENGTH-MEASURING-SYSTEM 3 Essential Features 3 High Accuracy 3 Simple Mounting 4 Protection Class 4 Connections 4 4. THE COMPONENTS 5 1. Magnetic tape MB Sensor MS PARAMETER SETTING 7 Registers 7 Programming-example: 7 6. HINTS FOR INSTALLATION AND OPERATION 8 Hints for Operation in Electrical panels 8 Hints on mounting the Tape MB TECHNICAL SPECIFICATIONS 9 Magnetic Sensor MS Magnetic Tape MB Indicator 9 8. DIMENSIONS TYPE DESIGNATION 11 Accessories LIABILITY EXCLUSION / GUARANTEE 12 2

3 1. Introduction This small, compact instrument has an 8 mm high, red LED display and provides a convenient, precise and easily readable indication of position. Using the dust-tight keypad (and external signal if required) the display can be reset or preset a datum value. The unit will operate with Elgo magnetic scale system and provides a rugged cost effective quality panel mounting instrument 2. Operating Instructions It is possible to alter the indicated value, using the keypad located on front. To reset the indicator: Press F and simultaneously RESET To set indicator a required datum: Press F and simultaneously SET The indicator begins to count up (adding) at three progressive speed rates: Rate 1 : at 1 Hz for 10 sec. Rate 2 : at 10 HZ for 10 sec. Rate 3 : at 1000 HZ as long as pushbutton are depressed. It is necessary, shortly before the desired value is reached, to release the button and reactivate, so as to approach position at the slowest rate. 3. The magnetic Length-measuring-system Essential Features The flexible tape is precisely calibrated with north and south poles. A Sensor picks up these divisions. The space between poles on the tape provides an analogue sinusoidal voltage output for the sensor. High Accuracy With a maximum cumulative error of 0.01 mm/m and resolution of 0.01 mm this type of measuring system can achieve a longer length (up to 25 m) with better accuracy. Backlash, slip, screw pitch, gearbox or other mechanical errors eliminated with this direct measurement system. 3

4 Simple Mounting The tape is simple to attach to the machine (e.g. by means of double sided sticky tape). Due to its high flexibility it can cope with uneven surfaces ore radii without affecting accuracy. A second steel tape is fitted on top of the magnetic tape, to protect it. The equipment will operate satisfactorily with a measuring gap of 0.1 to 2.0 mm. Protection Class The magnetic measuring system offers the greatest protection against hostile environments. Sensor and tape are protected to IP65. Connections Connections are by means of simple plug in connectors. This connector are readily removable and easily wired External power supply 24 V/AC External input RESET External input SET 4

5 4. The components 1. Magnetic tape MB The complete tape comprises 3 components: Sensor side C A B 1,8mm Mounting side L 10mm Can be supplied in lengths from 0,5-32 m A The magnetized, highly flexible rubber tape, connected on the bottom with: B A magnetized, flexible steel tape. This steel tape protects the rubber tape from mechanical damages and is at the same time a magnetic short circuit. This increases significantly the functional security under extreme magnetic influences. A and B are already factory-bonded. C To keep the flexibility for transport and installation, the third part, also a steel tape (magnetic permeable), is delivered separately. It serves for mechanical protection of the rubber tape and must be stuck on the magnetic rubber tape after installation. 5

6 2. Sensor MS The sensor head provides an analog signal. The sensor is connected directly to the indicator. Dimensions: 4 17+/-0, ,6 11,2 +/- 0, Distance max. 2,0 mm 10 X 7 Over the distance X, the gap between sensor and measuring tape must not be larger than mm. Sensor cable length - signal processing Z is a combination of the indicator and the sensor. The sensor wire is available in the following standard-lengths: 1m, 3m, 5m, 8m, 10m and 15 m. Other lengths on request. 6

7 5. Parameter setting The registers of the indicator will be programmed with the buttons located on front. To enter the set up-mode all button has to be pressed simultaneously for 5 seconds. The keypad has the following functions: F RESET entry in to parameter-selection and parameter-end of programming select digit to be changed SET increment a digit between 0 at 9 Registers N Function Range 03 Decimal point Sign 0 = +/- active 1 = +/- inactive 08 Pulse factor Datum value Display brightness Set = dark Programming-example: Modification of pulse factor: 1. Press button F / Reset / Set simultaneously for 5 sec. 2. Press F button 3. Press RESET button to select digit 1 for alteration 4. Press SET button 8 times to get parameter-number 08 in the display 5. Press F button to select parameter-value 6. Press RESET button to select the digit to be changed 7. Press SET button to increment the digit to be changed 8. Press F button to store the value to the internal Ram and prepare indicator for change of other parameters. 9. Press button F / Reset / Set simultaneously Now the new factor is stored and the indicator works in normal operation mode. 7

8 6. Hints for installation and Operation Hints for Operation in Electrical panels This position indicator is designed and constructed for use in arduous industrial applications and as immune to electrical interference as possible. Care should however be taken when fitting electronic equipment into machinery. 1. Electronic units should be mounted away from inductive and capacitate interference. 2. Protect against overvoltage. 3. Protect against over temperature. 4. Run low voltage cables separate to high voltage/high power cables. 5. Screen encoder cables and input signal cables. Tie screen to zero (terminal 1) at controller; leave insulated at other end. 6. Suppress all relays, contractors, solenoids, brakes and other coils in cabinet and on machine. Fit diodes across dc coils. Fit 0,1 µf Ω across ac coils. Failure to follow the above logical simple instructions could lead to maloperation of the electronic unit. Hints on mounting the Tape MB20.50 Use double-sided sticky tape (or other adhesive). It is important that the base tape B on the bonded rubber tape A are firmly fixed to the machine bed. The separately delivered tape C is only for mechanical protection. The Sensor operates with a gap of 0.1 to 2.0 mm from the Tape C. The tape can be mounted at any angle. Sensor side C A B 1,8mm Mounting side 8

9 7. Technical Specifications Magnetic Sensor MS The sensors are only available together with Z20. The cable length cannot be changed later. Maximum speed: 3,2 m/sec. Cable length: 1m,3m,5m,8m,10m,15m Cable diameter: 5.3 mm Cable bends radius: min. 60 mm Connector diameter: 12,5 mm Housing: Metal Protection: IP 65 Mounting attitude: any Enclosure: Die cast zinc Air gap to strip: 0.1 mm to 2 mm Temperature: C Magnetic Tape MB This comprises magnetic material bonded to ferrous tape. A stainless steel protection tape is supplied loose. Also included is a double-side adhesive strip. Available in rolls from 0,5 to 25 m in length. Length: 0,5 to 25 m Repeat accuracy 0.01 mm Accuracy at 20 C in mm: +/- (0, ,02 x L) (L = Length in m) Temperature coefficient: 0, x 1/ C Operating temperature: C Protection: IP 67 Dimensions: 10 mm x 1.8 mm x length Mounting attitude: any Aluminium cover: available in 2 m lengths Indicator Install depth: 100 mm with connector Power supply required: 24 VDC/AC, +/- 20% Power consumption: 10 VA Operating speed: 3,2 m/s at 0.01 mm resolution Display: 8 mm high red LED, 5 digits with +/- sign Set and Reset inputs: potential free pulsed contacts (10 Hz max.) Actual value memory: The actual position value is stored for infinite time in EE-Prom on power down. 9

10 8. Dimensions Cut out Side view 66 mm 62mm 57mm 44 mm 48mm 77mm External dimensions. 48mm F RESET SET ELGO ELECTRIC 72mm 10

11 9. Type designation Z X Small Single axis display with Magnetic sensor input Construction 005 = 0,01 Magnetic sensor interpolation circuit integrated Supply voltage 024 = 24 V DC/ AC +/- 10% Encoder input 9 = Magnetic sensor 0.01 mm resolution Special Features No options at the moment Accessories Magnetic tape :MB ,0 MB XX,X Incremental Magnetic tape Pole distance 5.0 mm Length of tape Magnetic Sensor MS xx.x MS 20.6X.XX,X Incremental magnetic sensor 0.01mm 60 = round connector 65 = angle connector Length of sensor cable Power supply 100mA 18Vdc din rail mounting version NG

12 10. Liability exclusion / Guarantee We have checked the contents of this instruction manual carefully, to the best of our knowledge and belief for conformity with the described hardware and software. Nevertheless errors, mistakes or deviations can not be excluded, therefore we do not guarantee complete conformity. Necessary corrections will be included in the subsequent editions. We appreciate your ideas and improvement suggestions very much. Reprint, duplication and translation, even in extracts, are only allowed with a written authorization by the company ELGO Electric GmbH. We constantly strive for improving our products, therefore we keep all rights reserved for any technical modifications without any notice. ELGO Electric does not assume any liability for possible errors or mistakes. The guarantee period is two calendar years (EC-Directive) from the date of delivery and includes the delivered unit with all components. ELGO Electric GmbH will at its option replace or repair without charge defects at the unit or the included parts, verifiable caused by faulty manufacturing and/or material in spite of proper handling and compliance to the instruction manual. Damages verifiably not caused by ELGO Electric GmbH and due to improper handling are excluded from any guarantee e.g. by applying faulty voltage, diffusion of liquid into the interior of the engine, using force, scratching the surface, chemical influences etc.! ELGO Electric GmbH 2002 DE Rielasingen, P.O. Box 11 30, Carl - Benz - Straße 1 Phone , Fax info@elgo.de Internet 12