Index Features and Applications ....................5 Safety ............................6 General Information ..................... 6 Notes on Legal Requirements ..................7 Environmental Protection and Disposal ............... 7 Notes on Transport, Storage and Handling ..............8 Notes on Operation ...................... 9 Notes on Maintenance ....................9 Setup of the Rotary Kit Encoder ..................
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6.12 PIN Assignment for Connector PCB X ..............24 6.13 PIN Assignment for JST Miniature Connector X and X ..........24 6.14 Electromagnetic Compatibility (EMC) ................ 25 6.15 Shielding Concepts ....................26 6.16 Voltage Output 1 V ....................27 6.17 Square-Wave Output RS-422 ..................28 6.18 Online Compensation (Offset and Amplitude Control) ..........
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Troubleshooting ........................49 Ordering Key ........................50 13.1 Scanning Head Kit L2 ....................50 13.2 Scanning Head Kit L4 ....................51 13.3 Speed Chart for LIK Series ..................52 13.3.1 LIK Series with Op-Amp ..................... 52 13.3.2 LIK Series without Op-Amp ..................54 13.4 Scale Tape MV ......................
• High machining speeds and therefore high accelerations make low masses of the components in motion essential. The Kit L incremental encoders from NUMERIK JENA are equipped with features which are supposed to fulfill these high requirements in an ideal way. • Due to an interpolation circuitry which is integrated in a 15-pin D-sub connector, a resolutions down to 50 nm is possible without any additional electronics.
Make sure to familiarize yourself thoroughly with the contents of these installation instructions before installing and starting up the encoder! • Please contact the support of NUMERIK JENA GmbH or an authorized representation for further information. Please visit the NUMERIK JENA website to get the contact information. •...
• This user manual supersedes all previous editions, which thereby become invalid. The basis for ordering from NUMERIK JENA is always the user manual edition valid when the contract is made. • Standards (ISO, EN, etc.) apply only where explicitly stated in the user manual. • NUMERIK JENA has tested its products to ensure the use of non-hazardous materials in accordance with the European Directives 2011/65/EU (RoHS). The EU Declaration of Conformity...
- even for just a very short time - simply pressing them together again will not result in sufficient adhesion. In this case neither the operational reliability nor the metrological properties can be guaranteed anymore. Please return the scale tape to NUMERIK JENA GmbH for repair! Unfortunately a repair at the customer site is not possible.
Modifications and repairs of the encoder may only be carried out by NUMERIK JENA GmbH or appropriately authorized persons. • NUMERIK JENA GmbH is not liable for damages caused by unauthorized handling of the encoder. All warranty claims are forfeited by unauthorized handling. • Exposed measuring systems are sensitive to contamination, especially the scale surface and the scanning windows for the counting and reference tracks on the scanning head.
Setup of the Rotary Kit Encoder Setup with Signal Processing in a D-Sub Connector This setup consists of the following components: • EPIFLEX sensor module glued into a very flat frame • Scale tape with incremental and index track • Connector PCB to connect flex cable with round cable of the connector • Connector with integrated electronics (1 V or RS-422) and cable EPIFLEX sensor module with frame...
Setup without Signal Processing This setup consists of the following components: • EPIFLEX sensor module glued into a very flat frame • Scale tape with incremental and index track EPIFLEX sensor module with frame Customers electronics Flex tape = 5 V Output signal: • 1 V • TTL (w/o interpolation) Recommended recommended C1 = 22 µF...
Features Kit L2 The Kit L2 encoders from NUMERIK JENA are 2-field scanning units. The advantage compared with 1-field scanning units is a lower sensitivity to contaminations. Sensor layout: EPIFLEX sensor module with frame (example) Scanning field 1 for incremental track Scanning field for index track Scanning field 2 for incremental track Scale tape (MV) Image 5 Features Kit L4 The Kit L4 encoders from NUMERIK JENA are 1-field scanning units. The advantage compared with 2-field scanning units is a smaller frame size. Sensor layout: Scale tape (MT) EPIFLEX sensor module with frame Scanning field for (example) incremental track Scanning fields...
SINGLEFLEX Scale Tape The SINGLEFLEX scale tape from NUMERIK JENA consists of a single stainless steel tape with an applied incremental track and one or more reference marks. The scale tape is equipped with a double-sided adhesive tape and can be mounted easily on the machine element.
DOUBLEFLEX Scale Tape The DOUBLEFLEX-scale tape consists of two superimposed steel tapes. Both of them are divided by a tension uncoupled sheen of oil which ensures the adhesion between the steel tapes. The incremental track and one or more reference marks are applied on the upper steel tape. The lower steel tape is equipped with a double-sided adhesive tape and can be mounted easily on the machine element.
Technical Data Resolution and Accuracy (Definition) Basically one has to differentiate between the resolution and the accuracy of a measuring system. The two parameters are not directly interdependent and may differ from each other. Resolution The resolution of linear system describes the least possible displacement of scanning head against the scale which can still be discerned by the evaluation electronics (display, control). It depends on (see chart 1) • the graduation period of the scale • the signal intepolation factor (internally or in auxiliary electronic unit) • the evaluation mode in the counter Accuracy The accuracy of linear measuring systems is specified in accuracy classes.
Mechanical Data Kit L2 Kit L4 Dimensions of scan head 20 mm x 8 mm 13 mm x 8 mm Weight of sensor 2.5 g recommended measuring steps 0.05 µm, 0.1 µm, 0.2 µm, 0.5 µm, 1.0 µm, 5.0 µm Traversing speed Maximum 10 m/s (without interpolation)
Electrical Data Kit L2 Kit L4 Scanning frequency max. 500 kHz Supply voltage 5 V ±10% Output interfaces Voltage output Square wave output RS422 with interpolation up to 100-times Current consumption for sensors with sensor amplifier „SV 3“ Voltage output ≤90 mA* ≤80 mA* Square wave output ≤220 mA* ≤210 mA* Current consumption for sensors with sensor amplifier „SV 4“...
Attainable Traversing Speed The maximum attainable traversing speed of the encoder is determined by the maximum output frequency of the interpolator and/or the maximum counting frequency of the operator‘s evaluation electronics. In order to avoid counting errors, the interpolator‘s output frequency is matched to the counting frequency of the operator‘s evaluation electronics.
(see also point 6.2! Extension Cable (connection cable from D-Sub connector to controller) • Use preferably original extension cables made by NUMERIK JENA. This guarantees an optimum compatibility with the encoders and ensures a maximum protection against electromagnetic interferences.
Connector PCB 6.8.1 Type 1 with Signal Processing RS 422 with interpolation Ø 2.6 Round cable with connector Locating surface Flex tape Output X (vertical) 10.6 Locating surface Diagnose pins for signal adjustment Input X (horizontal) Flex cable 12.7 EPIFLEX sensor module : 12 pin (glued into a frame) : 10 pin...
6.8.3 Type 2 without Signal Processing 10.6 15.6 Locating surface Signal processing in a D-Sub connector Flex tape Ø 2.6 Round cable with connector Locating surface Ø 5.1 12.4 Input X : 12 pin (vertical) Output X : 14 pin (horizontal) Image 14 Dimensions Connector Cable with Open Output Heat shrink tube 10/14 Ø...
When using additional electronics, connect the housing electrically conducting to ensure good galvanic conductivity. For insulated installation the housing should be connected at the shortest distance by an additional potential equalization line (Cu line with cross section ≥6 mm ) with the machine’s protective ground. • Please contact the NUMERIK JENA support or that of the appropriate manufacturer if you experience any problems when working with specific display or control units. SIMPLY PRECISE...
6.17 Square-Wave Output RS-422 Optimal Connection Circuit RS 422 line receiver (e.g. AM 26 LS 32, MC 34 86) RS 422 line driver R = 120 Ω 1– 2– 0– Image 19 Signal Curve NAS high: 360° (Signal period) Encoder functioning properly, input signals within tolerance range 90°...
6.18 Online Compensation (Offset and Amplitude Control) Contamination and mounting errors lead to interferences in the optical scanning of the scale by the scanning head and so to periodic deformations of the sinusoidal counting track signals, which are exemplified as • Offset deviations •...
General Installation Notes Delivery Contents Standard • Kit L2 and Kit L4 scanning head (according to the ordered specification) • SINGLEFLEX or DOUBLEFLEX scale tape (according to the ordered specification) • Spacing gage for mounting the scanning head (made of plastic with marking „0,6“) • Information sheet Optional • ADJUSTMENT TOOL • Extension cable Installation Position • The installation position of the measuring system is arbitrary. • In order to avoid contamination deposits, a vertical position for the scale tape is recommended. •...
Mounting Steps Hereafter the mounting steps for a Kit L measuring system from NUMERIK JENA will be described. • Please read the notes mentioned to the particular mounting steps thorough and follow the indicated sequence of mounting steps exactly! •...
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• If necessary, clean all mounting surfaces before mounting by following the instructions in chapter 11 “Cleaning”. • Make sure that no contaminations remain on the machine‘s adhesion surface. • Alien elements between the machine and scale tape cause local differences in the spacing between the scale tape and the scanning head. This may diminish the encoder‘s functionality and/or result in measuring errors.
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• If you use a DOUBLEFLEX scale tape, glue the fixing point first. • Please pay attention to the use and safety instructions from the manufacturer of the adhesive! • Place a drop of adhesive on the center of the fixing point. • Recommended adhesives: Cyanoacrylate adhesives such as Loctite 480 or Loctite 401 Epoxy resin blue protective film for the scale (on the top) DOUBLEFLEX Scale Tape • Peel off ca. 70 mm of the red protective film on the back of the scale tape.
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• Remove the red protective film from the slot or edge. • On the DOUBLEFLEX scale tape, apply the fix point with the drop of adhesive (at either the beginning or end of the scale tape) and at the same time secure the first ca. 50 mm of the scale tape. • Place the end of the SINGLEFLEX scale tape from which the protective film has been removed against the front end stop (slot) or lateral stop (edge). blue protective film for scale tape (on the top) red protective film...
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• Press the scale tape with your forefinger and by the help of a soft, lint-free rag against the carrier over the entire length. Pull off the red protective film to the side. The pressure point should always be ca. 30 mm to 50 mm behind the point where the adhesive tape and the red protective film are being separated. • Only apply pressure to the scale tape from above and avoid lateral forces! • Remove the protective film from the scanning head. • If necessary, clean all mounting surfaces before mounting by following the instructions in chapter 11 “Cleaning”.
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• Screw the scanning head onto the prepared mounting surface such that there is still some vertical clearance. • Remove the blue transparent protective film (in case of DOUBLEFLEX scale tape, always begin at the fixing point) from the graduation of the scale tape. mounting example blue protective film...
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After connecting the encoder cable switch the evaluation electronics on and test the functionality. • If there are errors in the function or during measurement, please read chapter 12 “Troubleshooting” first. If these information are not helpful for your problem, please contact the technical support of NUMERIK JENA or an authorized representation in your country. SIMPLY PRECISE...
Signal Adjustment with ADJUSTMENT TOOL Before delivery the encoders from NUMERIK JENA will be tested and electronically adjusted under ideal mounting conditions. Furthermore, the sensor modules offer the possibility of an electronic signal adjustment after the mounting into the application. This allows the user optimize the encoder signals regarding to the mechanical mounting conditions (tolerances). The ADJUSTMENT TOOL and the related EPIFLEX software was designed to simplify and make the signal adjustment more effective.
The EPIFLEX software is available for free via download on the NUMERIK JENA website under www.numerikjena.com. The EPIFLEX software is suitable for the following operating systems: •...
Mounting Drawing - Kit L2 Scanning Head Kit L2 14.5 2.75 Illustration sensor without frame and SINGLEFLEX scale tape Image 26 Scale tape H ± 0,1 Machine guideway SINGLEFLEX 1,05 mm The mounting surface must be vertically adjustable to ensure that the distance parameter H ±0.1 and the DOUBLEFLEX 1,3 mm parallelism 0.025 can be achieved...
Assignment of Scanning Head, Scale Tape and Measuring Length SINGLEFLEX and DOUBLEFLEX with fixpoint at the start of ML Positive counting direction Start of ML End of ML 14.5 Max. overrun Max. overrun 2.75 DOUBLEFLEX with fixpoint at the end of ML TL = ML + 30 Image 27 SINGLEFLEX without name plate...
Mounting Drawing - Kit L4 10.1 Scanning Head Kit L4 Flex cable vertical Flex cable horizontal Illustration sensor without frame and SINGLEFLEX scale tape Image 33 Scale tape H ± 0,1 Machine guideway SINGLEFLEX 1,05 mm The mounting surface must be vertically adjustable to ensure that the distance parameter H ±0.1 and the DOUBLEFLEX 1,3 mm...
10.2 Assignment of Scanning Head, Scale Tape and Measuring Length SINGLEFLEX Positive counting directon Positive counting directon ML/2 Start of ML Start of ML TL = ML + 14 DOUBLEFLEX ML/2 12.2 Start of ML Start of ML TL = ML + 18 SINGLEFLEX without name plate ML/2 Start of ML...
Cleaning 11.1 Measuring System • The measuring systems from NUMERIK JENA are delivered in a pre-cleaned condition. Re- cleaning of the surfaces is only recommended if they have been contaminated during installation of the components. • During operation of the measuring system in a plant, occasional cleaning of the sensor surface of the scanning head (scanning window for counting and reference track) or the graduated scale may be necessary, depending on the installation position and the ambient conditions.
However, if troubles or problems should occur, please read the following points in the chart and proceed according these information. If this is not helpful, please contact the technical support of NUMERIK JENA GmbH or one of our authorized representations. You will find respective contact data on the NUMERIK JENA webside www.numerikjena.com.
Ordering Key 13.1 Scanning Head Kit L2 Ordering key - example Kit L Electrical connection Product name Kit L With connector board 10 pin JST mini connector, socket Without connector board 14 pin JST mini connector, socket 9 pin D-Sub, plug...
13.2 Scanning Head Kit L4 Ordering key - example Kit L Product name Electrical connection Kit L With connector board 10 pin JST mini connector, socket Without connector board 14 pin JST mini connector, socket 9 pin D-Sub, plug Type of sensor...
The encoders from NUMERIK JENA are available without op-amp also. Thus it is possible to increase the scanning frequency which consequently enables higher traversing speeds up to 10 m/s.
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Interpolation factor = 25 Min. counting frequency of Min. counting frequency of Max. scanning frequency of Value for Max. traversing speed the evaluation electronics the evaluation electronics the measuring system (in m/s) without 4-edge evaluation with 4-edge evaluation (in kHz) (in MHz) (in MHz) 0.13 0.25 0.27...
13.3.2 LIK Series without Op-Amp The maximum scanning frequency of the encoder without op-amp amounts to 500 kHz, hence the maximum attainable traversing speed will be derived from that. This enables traversing speeds up to 10 m/s. (1 VSS) or (RS 422) Without interpolation factor Min.
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Interpolation factor = 25 Min. counting frequency of Min. counting frequency of Max. scanning frequency of Value for Max. traversing speed the evaluation electronics the evaluation electronics the measuring system (in m/s) without 4-edge evaluation with 4-edge evaluation (in kHz) (in MHz) (in MHz) 0.13 0.25 0.27...
13.4 Scale Tape MV Ordering key - example 00150 Measuring length Scale Scale tape with asymmetric ML in mm reference mark Grating period Material 20 µm Stainless Steel (Choose Type 0, 1 oder 5) Float glass Position of the index mark (Choose Type 6) In the middle of ML Type On customer specification DOUBLEFLEX...
13.5 Scale Tape MT Ordering key - example 00125 Product name Measuring length Scale tape with symmetric ML in mm (max. 400 mm) reference mark Grating period Material 20 µm Stainless Steel (Choose Type 0, 1 oder 5) Float glass Position of the index mark (Choose Type 6) In the middle of ML Type On customer specification DOUBLEFLEX...
13.6 ADJUSTMENT TOOL Name Scope of delivery / Description Order-no. • ADJUSTMENT TOOL black box • Diagnostic cable to connect the measuring system ADJUSTMENT TOOL 344220-33 • USB cable to connect a PC • USB - D-SUB - adapter cable (15-pin) • Exchangeable 8-pin plug connectors Optional Single Components Name Description...
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