Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Numerik Jena RIK 4
Summary of Contents for Numerik Jena RIK 4
- Page 1 SIMPLY PRECISE USER MANUAL RIK 4 VACUUM Rotary encoder for vacuum applications...
-
Page 2: Table Of Contents
Index Features and Applications ....................4 Safety ............................5 General Information ..................... 5 Notes on Legal Requirements ..................6 Notes on Transport, Storage and Handling ..............7 Notes on Operation ...................... 8 Notes on Maintenance ....................8 Setup of the Vacuum Encoder ....................9 Grating Disks ........................ - Page 3 Troubleshooting ........................36 Ordering Key ........................37 11.1 Scanning Head ......................37 11.2 Speed Chart for RIK Series ..................38 11.2.1 RIK 4 with Op-Amp .....................38 11.2.2 RIK 4 without Op-Amp ....................40 11.3 Grating Disk ....................... 42 11.4 ADJUSTMENT TOOL ....................43...
-
Page 4: Features And Applications
Features and Applications Position encoders in drive systems have to meet high and controversial demands, especially in linear drive systems. The demands opposing each other are high accuracy and resolution on the one hand and low mass, small dimensions and high measuring speed on the other hand. •... -
Page 5: Safety
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. • NUMERIK JENA GmbH is not liable for damages caused by unauthorized handling of the encoders. Any unauthorized handling leads to forfeiture of all warranty claims. •... -
Page 6: Notes On Legal Requirements
2nd Ed. specified in UL1310.* • 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. In place of IEC 61010-1 , Section 9.4, the corresponding sections of standards DIN EN 61010-1, EN61010-1, UL 61010-1 and... -
Page 7: Notes On Transport, Storage And Handling
Notes on Transport, Storage and Handling • Please use the original packaging for transportation and storage only! • After receiving the measuring system please check the packaging and the seal for damages first! Once opened, scratches or contaminations on the grating disk cannot be complained anymore. • Handle the grating disk carefully! Its surface is sensitive to scratching. •... -
Page 8: Notes On Operation
• 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 disk surface and the scanning windows for the counting and reference tracks on the scanning head. -
Page 9: Setup Of The Vacuum Encoder
Setup of the Vacuum Encoder The vacuum encoders from NUMERIK JENA consists of two different assemblies. One of them is made for vacuum areas, the other is for normal atmospheric pressure. Thus only the vacuum suitable parts will be placed in the vacuum chamber. -
Page 10: Grating Disks
Grating Disks The grating disks from NUMERIK JENA are available in different sizes and versions. Hereto we have a big selection of obtainable grating disks in supply but on request we also manufacture at customer‘s option. Our grating disks are made of an aluminium alloy. They are also available in glass on request. -
Page 11: Grating Disks - Types
Grating Disks - Types Type [mm] [mm] [mm] d [mm] d [mm] d [mm] d [mm] -0.2 RS 19/6/3600 6 + 0.1 3,600 -0.5 -0.2 RS 19/12/3600 12 + 0.1 3,600 -0.5 -0.2 RS 19/13/3600 13 + 0.1 3,600 -0.5 -0.2 RS 29/16/900 16 + 0.1... -
Page 12: Scanning Head
-0.2 RS 142/120/5400 120 + 0.2 5,400 -0.5 -0.2 RS 142/120/8192 120 + 0.2 8,192 -0.5 RS 142/120/18000 120 + 0.2 -0.2 18,000 -0.5 RS 142/122/5400 122 + 0.2 -0.2 5,400 -0.5 -0.2 RS 142/128/18000 128 + 0.2 18,000 -0.5 -0.2 RS 192/160/24000 160 + 0.2... -
Page 13: Technical Data
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 Resolution “A“ is defined as the smallest angular value that is still detected by the evaluating electronics (display, control) when the grating disk is turned relative to the scanning head. The resolution can be calculated using the following formula: A = Z ·... -
Page 14: Mechanical Data
Mechanical Data RIK 4 Weight of scan head (w/o cable) 3 - 6 g Number of counting pulses / rev. (with signal interpolation and up to 9,600,000 4-edge evaluation) • 19 mm • 29 mm • 39 mm Available diameter of grating disks • 45 mm (Ø... -
Page 15: Electrical Data
Electrical Data RIK 4 Scanning frequency max. 500 kHz Output Interfaces Voltage output (15-pin D-Sub) Square wave output RS 422 with interpolation up to 100-times (15-pin D-Sub) Supply voltage 5 V ±10% Current Consumption Voltage output ≤80 mA* Square wave output ≤210 mA* Cable Cable diameter 3.7 mm • occasional flexing ~8 mm Permissible bending radius •... -
Page 16: Ambient Conditions
Ambient Conditions RIK 4 Operating temperature range 0°C to +55°C (+32°F to +131°F) Storage temperature range -20°C to +70°C (-4°F to +158°F) Vibration (50 Hz ... 2,000 Hz) ≤200 ms (20 g) Shock (11 ms) ≤400 ms (40 g) Humidity ≤93% relative humidity (no condensation forming) Chart 5 Cable Scanning Head Cable (connection cable from scanning head to D-Sub connector) • Provide a strain relief for the cable near the scanning head. -
Page 17: Pin Assignment
6.11 Pin Assignment A - 14 pin JST** RS 422 Wire colour trans X2 - 14 pin JST** RS 422 Cable Ø 3.7 mm bn/gn wh/gn Cable Ø 5.1 mm bn/gn wh/gn wh/ye* ye/bn* wire has to be insulated test connector (must be removed by customer) X3 - 15 pin D-Sub Housing Shield RS 422 Shield RS 422 1 Vss counting signal 0°... -
Page 18: Electromagnetic Compatibility (Emc)
The encoder must be mounted to a galvanic conductive surface. The mounting surfaces, the threads of the mounting screws and the threads in the machine must be free from electrically non- conductive coatings. • Maintain the NUMERIK JENA shielding concept for the measuring system! • Shielding for encoders without connectors: - When connected directly with the evaluation electronics, ensure that the external shield of the cable is well grounded - If cable connectors (e.g. terminal strips, etc.) are used, connect the external shields of the... -
Page 19: Shielding Concepts
6.13 Shielding Concepts RIK 4 Abbildung Subsequent electronics Subsequent electronics Scanning head Shield Subsequent Scanning head Shield electronics Scanning head Shield and RS 422 output Encoder cable Ø 3.7 mm Encoder cable Ø 3.7 mm Encoder cable Ø 3.7 mm... -
Page 20: Voltage Output 1 V
6.14 Voltage Output 1 V Optimal Connection Circuit – – – –U 1– 2– 0– Ω = 120 Image 7 Signal Curve 360° (Signal period) 90° (Phase difference) Image 8 Difference signals measured at R = 0.6 ... 1.2 V (Rated voltage: 1 V = 0.6 ... -
Page 21: Square-Wave Output Rs 422
6.15 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 9 Signal Curve NAS high: 360° (Signal period) Encoder functioning properly, input signals within tolerance range 90°... -
Page 22: Online Compensation (Offset And Amplitude Control)
6.16 Online Compensation (Offset and Amplitude Control) Contamination and mounting errors lead to interferences in the optical scanning of the grating disk by the scanning head and so to periodic deformations of the sinusoidal counting track signals, which are exemplified as •... -
Page 23: General Mounting Instructions
General Mounting Instructions Delivery Contents Standard • RIK 4 scanning head (according to the ordered specification) • Grating disk (according to the ordered specification) • Information sheet Optional • ADJUSTMENT TOOL • Extension cable Encoder Mounting Position • The mounting position of the encoder system is arbitrary. • The operator of the encoder system is responsible for appropriate design measures to protect the scanning head and grating disk from contamination. -
Page 24: Mounting Of The Encoder System
Mounting of the Encoder System The following shows the assembly of a RIK 4 encoder system. Scanning head and grating disk must be positioned to each other like shown in the image. 0.01 0.015 0.01 0.01 0.01 A - A... -
Page 25: Dimensions And Mounting Tolerances
Dimensions and Mounting Tolerances [mm] [mm] [mm] [mm] ± RS 19/6/3600 0.02 ± RS 19/12/3600 0.015 0.02 ± RS 19/13/3600 0.02 ± RS 29/16/900 ± RS 29/16/1000 0.05 0.015 ± RS 29/16/4500 0.05 ± RS 29/20/900 ± RS 39/10/1800 ± RS 39/10/2048 ±... - Page 26 ± RS 142/120/5400 0.05 ± RS 142/120/8192 0.05 ± RS 142/120/18000 0.015 0.05 ± RS 142/122/5400 0.05 ± RS 142/128/18000 0.05 ± RS 192/160/24000 0.015 0.05 (regarding to image 18) Chart 7 Outside diameter of the stop surface (for scanning head) Inside diameter of the stop surface (for scanning head) Diameter of the axis Radial eccentricity - outer diameter of the incremental track Working distance (air gap) SIMPLY PRECISE...
-
Page 27: Mounting Of The Grating Disk
Mounting of the Grating Disk To prevent deformation of the grating disk by external forces it is recommended to glue the disk to a hub (see image 16). Additionally the mounting and mechanical adjustment to a shaft will be simplified. The use of a rotary table for mounting will be recommended. For optical vernier adjustment of the grating disk an adjustment microscope with line marking in the intermediate image plane should be used. Recommended Mounting Steps: Clean all adhesive surfaces by using a soft and lint-free rag. - Page 28 Shaft Axis Grating Disk Adhesive Joint Image 16 Centering of the Grating Disk with an Adjustment Microscope Position 1 Position 1 + 180° e = (b - a) / 2 Image 17 Center of the axis Center of the incremental track Centering error Minimum deviation Maximum deviation SIMPLY PRECISE...
- Page 29 Mounting Example with Loading After Glueing the Grating Disk Grating disk Loading (steel ring, weight: 0.6 to 1.0 kg) Optical axis of the adjustment microscope Protection against scratching (e.g. foam ring) Image 18 Mounting Instructions • Remove any residue of adhesive which appeared during the mounting procedure from hub and grating disk immediately. • Please prevent any damage or scratching of the grating disk while removing the loading. The surface of the grating disk is very scratch-sensitive.
- Page 30 Notes NUMERIK JENA offers the mechanical mounting as well as the adjustment of the grating disk to a customized hub as a service. The manufactuing of the customized hub can be done by NUMERIK JENA also. The hub must be designed principally as prescribed in the following image.
-
Page 31: Mounting Of The Scanning Head
Mounting of the Scanning Head • Clean all mounting surfaces of the scanning head and machine element before mounting. Remove the protection foil from the scanning window of the scanning head. • Clean the scanning head surfaces carefully by using a soft and lint-free rag. Use a solvent if necessary (e.g. Acetone or Alcohol). - Page 32 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 10 “Troubleshooting” first. If these information are not helpful for your problem, please contact the technical support of NUMERIK JENA or an authorized subsidiary in your country. SIMPLY PRECISE...
-
Page 33: Signal Adjustment With Adjustment Tool
• Adjustment of the position and width of the index signal Dynamic Offset and Amplitude Control (Online Compensation) The encoders of NUMERIK JENA are equipped with a dynamic amplitude and offset control (online compensation). The analog diode signals will be corrected to their nominal values in real time. This reduces measuring errors caused by contamination as well as from inaccuracies. The phase position between the sine and cosine signals and the position of the index signal are not influenced by the online compensation. -
Page 34: Epiflex Software
The EPIFLEX software is available for free via download on the NUMERIK JENA website under www.numerikjena.de. Furthermore, one can order the software with an optional USB flash drive. The EPIFLEX software is suitable for the following operating systems: •... -
Page 35: Cleaning
Cleaning • Depending on the measuring system‘s mounting attitude and the ambient conditions, it may be necessary to clean the grating disk and sensor surface of the scanning head (scanning window for counting and reference track) occasionally. • If the monitoring signal output by the scanning head is used, the encoder indicates that cleaning is necessary. -
Page 36: Troubleshooting
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 subsidiaries. You will find respective contact data on the NUMERIK JENA webside www.numerikjena.de. -
Page 37: Ordering Key
Ordering Key 11.1 Scanning Head Ordering key - example 39/3600 Type of sensor Type of connector 1-field sensor 13 x 8 mm 15 pin D-Sub, male (with electronics) Type of housing Connector cable Ø 3.7 mm (single-shielded) Read head with thread M2.5 0.3 m 0.5 m Material of housing 1.0 m Aluminium 1.5 m 2.0 m Grating disk 3.0 m... -
Page 38: Speed Chart For Rik Series
The op-amp decouples parasitic frequencies and improves the interference immunity of the encoder under unfavorable conditions. The encoders from NUMERIK JENA are available without op-amp also. Thus it is possible to increase the scanning frequency which consequently enables higher speed of rotation. - Page 39 Interpolation factor = 25 Number of lines (Z) Min. counting frequency of the Value evaluation electronics (in MHz) 1,000 1,800 2,048 3,600 4,096 4,500 5,400 6,000 9,000 10,000 18,000 24,000 32,000 w/o 4-edge with 4-edge [rpm] evaluation evaluation 0.25 0.50 1,333 1,200 0.75 1,778 1,600 1.00 2,667 2,400 1,333...
-
Page 40: 11.2.2 Rik 4 Without Op-Amp
11.2.2 RIK 4 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. (1 VSS) or (RS 422) Without interpolation factor Number of lines (Z) Min. counting frequency of the Value evaluation electronics (in MHz) 1,000 1,800 2,048 3,600 4,096 4,500... - Page 41 Interpolation factor = 25 Number of lines (Z) Min. counting frequency of the Value evaluation electronics (in MHz) 1,000 1,800 2,048 3,600 4,096 4,500 5,400 6,000 9,000 10,000 18,000 24,000 32,000 w/o 4-edge with 4-edge [rpm] evaluation evaluation 0.25 0.50 1,333 1,200 0.75 1,778 1,600 1.00 2,667 2,400 1,333...
-
Page 42: Grating Disk
11.3 Grating Disk Ordering key - example 39/25/3600 Supply RS Grating disk Without supply (please leave this blank) You want to supply your own hub to glue on the grating disk. Centre Ø Inside-Ø of counting track d grating disk d Number of lines Z 3,600 3,600 Service 3,600... -
Page 43: Adjustment Tool
11.4 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 Order-no. External flash drive with saved EPIFLEX EPIFLEX software - USB flash drive 686802-02... - Page 44 SIMPLY PRECISE...
- Page 45 NUMERIK JENA GmbH Im Semmicht 4 07751 Jena Germany +49 3641 4728-0 Phone: +49 3641 4728-202 Fax: info@numerikjena.de E-Mail: Version 07 2016 www.numerikjena.de ℗ © Subject to change without prior notice. & NUMERIK JENA GmbH SIMPLY PRECISE...
Need help?
Do you have a question about the RIK 4 and is the answer not in the manual?
Questions and answers