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4.2.2 Shielding Concepts

• 1 V

and RS 422 output

• 1 V

output

• RS 422 output

0 V

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

Extension cable

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

0 V

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

Extension cable

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

0 V

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

Extension cable

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

Shield

Scanning head

Encoder cable Ø 3�7 mm

Subsequent

electronics

Image 8

Содержание LIKgo

Страница 1: ...English Original Instruction...

Страница 2: ...otection and Disposal 9 3 TECHNICAL PROPERTIES 9 3 1 Resolution and Accuracy Definition 9 3 2 Reliability 11 3 3 Ambient Conditions 12 3 4 Attainable Traversing Speed 12 3 5 Online Compensation Offset...

Страница 3: ...adjustment with NPA NUMERIK PWT Adapter and PWT 101 37 6 3 Comparison of the different adjustment variants 40 7 CLEANING 40 8 TROUBLESHOOTING 41 9 ORDERINFORMATION 42 9 1 Scanning head LIKgo 42 9 2 Sp...

Страница 4: ...cing machines requires the miniaturization of the drives guideways and encoders High machining speeds and therefore high accelerations make low masses of the components in motion essential The LIKgo i...

Страница 5: ...sion machining Robotics Additional features Reference signal s with repeatability accurate to a specific increment regardless of the direction from which the reference mark s is are traversed Compact...

Страница 6: ...maintained as stated in these mounting instructions Make sure to follow the right sequence of the mounting steps during mounting NUMERIK JENA GmbH does not assume any liability for any damages or oper...

Страница 7: ...Product Safety Act ProdSG from November 8th 2011 Connect NUMERIK JENA encoders only to subsequent electronics whose power supply is generated from PELV systems EN 50178 NUMERIK JENA encoders fulfill...

Страница 8: ...nding on the ambient conditions 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 ca...

Страница 9: ...ic waste Dispose only by authorized collection points Electrical waste and electronic components are subject to special waste regulations Observe the applicable country specific regulations More detai...

Страница 10: ...Accuracy The accuracy of linear measuring systems is specified in accuracy classes The extreme error values for any max one meter section of the measured length lie within the specified accuracy class...

Страница 11: ...easuring head monitors the signals and eliminates any deviations in the amplitude If the signal amplitude decreases due to the presence of contamination on the measuring scale the sensor amplifier rea...

Страница 12: ...s adaptation is possible in discrete frequency steps The maximum attainable traversing speed vmax is calculated according to the following formula f Output frequency set by the manufacturer for 4 time...

Страница 13: ...to interpolation errors Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Usin Ucos Image 5 Image 4...

Страница 14: ...tically corrects the signals generated by the measuring module within the sensor for the entire speed range without following error over the entire velocity range This improves the accuracy as well as...

Страница 15: ...at a time 4 TECHNICAL DATA 4 1 Mechanical Data 4 1 1 Encoder LIKgo Parameter LIKgo Dimensions of scan head in mm 28 x 13 x 7 5 Weight of scan head w o cable 10 g Traversing speed depending on auxiliar...

Страница 16: ...e Accuracy classes a 3 m m 5 m m Baseline error 750 nm 50 mm 4 1 2 SINGLEFLEX Scale Tape 8 Z hlspur Referenzspur Klebeband Ma band 0 45 0 25 0 20 Adhesive tape Scale tape 0 45 0 25 0 20 8 Counting tra...

Страница 17: ...itive counting direction Encoder LIKgo Cable Scale tape MI View of the sensor from above through the housing Image 7 Counting Direction The alignment of the scale tape depends on the mounting position...

Страница 18: ...sources of interference e g mains cables fuses motors magnetic valves or power supplies Normally a distance of 100 mm will be sufficient Install the cable in a way that it cannot be damaged by the mov...

Страница 19: ...ing 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 termi...

Страница 20: ...ubsequent electronics 0 V Shield Scanning head Encoder cable 3 7 mm Subsequent electronics Extension cable Extension cable Shield Scanning head Encoder cable 3 7 mm Subsequent electronics Shield Scann...

Страница 21: ...cable so that it is not damaged by the moving carriage pay attention to the permissible bending radius Plastic coated coupling 56 28 M23x1 10 9 8 7 6 5 4 3 2 1 12 11 1 2 3 4 5 9 8 7 6 32 41 FMK 1G 9 p...

Страница 22: ...hase difference Signal Curve Encoders with 1 VPP interface provide voltage signals that can be highly interpolated The sinusoidal incremental signals U1 and U2 are phase shifted by 90 elec and have am...

Страница 23: ...e adaptation with a terminal resistor of R0 120 is necessary When connecting more than one parallel signal input to an encoder output signal e g linear motors with parallel connection to position cont...

Страница 24: ...orporate electronics that digitize sinusoidal scanning signals with or without interpolation The incremental signals are transmitted as the square wave pulse trains Z1 and Z2 phase shifted by 90 elec...

Страница 25: ...system is responsible for appropriate design measures to protect the encoders from contamination The counting direction of the encoders is positive increasing measuring values in any case if the scan...

Страница 26: ...e mounting surface 5 3 Mounting Drawing LIKgo 4 2 5 25 5 6 6 3 7 6 5 2 5 0 4 M2 5 2x 0 1 F 0 1 28 F 0 1 100 28 0 05 A 13 0 05 6 5 7 5 0 1 4 8 6 0 14 8 A B 0 49 28 1 4 0 05 Ra x F scanning side scannin...

Страница 27: ...e tape before starting with the mounting The alignment of the scale tape depends on the installation position of the scan head Ensure that the scanning head s scanning fields for the counter and refer...

Страница 28: ...ity and or result in measuring errors The scale tape can be mounted in a slot already on the machine or along an edge already on the machine Place the edge of the scale tape exactly on the marking for...

Страница 29: ...Remove the red protective film from the slot or edge 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 St...

Страница 30: ...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 prot...

Страница 31: ...surface of the scanning head with a soft and lint free rag Use a solvent if necessary e g Acetone or Alcohol mounting example Screw the scanning head onto the prepared mounting surface such that ther...

Страница 32: ...parallelism between the housing of the measuring head and the scale tape you can use the provided spacing gage 1 4 This serves only as a guideline for an approximate check of the mounting since the i...

Страница 33: ...switched off 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 8 Troubles...

Страница 34: ...he EPIFLEX adapter the measuring systems can be optimized and programmed It enables the connection of the new encoder generation to the ADJUSTMENT TOOL With this adapter it is no longer necessary to o...

Страница 35: ...adjusted nominal values of the online compensation can be influenced 6 1 4 Scope of Delivery Further information about the ADJUSTMENT TOOL and the EPIFLEX PRO software can be found on the NUMERIK JENA...

Страница 36: ...6 1 5 EPIFLEX PRO Software The EPIFLEX PRO software was especially designed for the ADJUSTMENT TOOL It offers the user versatile possibilities to bring the encoder into service It also allows the user...

Страница 37: ...ik PWT Adapter is an accessory item to connect linear incremental measuring systems of the new product generation of NUMERIK JENA to the PWT101 a test device from Dr JOHANNES HEIDENHAIN GmbH for funct...

Страница 38: ...e X1 15 pin Sub D socket for measuring instruments on the right side of the device to connect the NPA NUMERIK PWT Adapter current limitation 750 mA 5 V 5 W UP Image 28 Image 29 6 2 1 Connection proced...

Страница 39: ...ain menu Note Make sure to follow the right sequence of the mounting steps during mounting Do not overtighten screws Do not exert mechanical stress on the plug connections Note Incorrect power supply...

Страница 40: ...ent and the adhesive tape This could start to dissolve the adhesive and reducing the adhesive force Furthermore the scale tape can be detached totally Ensure that no solvent seeps under the scale tape...

Страница 41: ...e mark can only be detected from one direction Reference mark appears twice Not all reference marks are detected Failure signal reports for RS 422 Mounting error results in level of the analog signal...

Страница 42: ...422 without interpolation L Square wave signal RS 422 with 5 fold interpolation M Square wave signal RS 422 with 10 fold interpolation I Square wave signal RS 422 with 25 fold interpolation N Square...

Страница 43: ...r evaluation electronics is able to achieve the needed counting frequency The listed values in the charts refer to a grating period TP of 20 m Speed factor 0 1 3 4 6 9 Interface Interpolation factor M...

Страница 44: ...m 2020 2020 mm 670 670 mm 2120 2120 mm 720 720 mm 2220 2220 mm 770 770 mm 2320 2320 mm 820 820 mm 2420 2420 mm P 20 m Customized measuring lengths on request 5 Steel 3 3 m m 4 5 m m MI Scale tape with...

Страница 45: ...33 EPIFLEX Adapter Set to connect the scanning head to the ADJUSTMENT TOOL EPIFLEX USB Adapter EPIFLEX Adapter cable Transport case and documentation 344220 50 NPA NUMERIK PWT Adapter NPA NUMERIK PWT...

Страница 46: ...NUMERIK JENA GmbH Im Semmicht 4 07751 Jena Germany Phone 49 3641 4728 0 E Mail info numerikjena de www numerikjena de Version 10 2020...

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