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ROTACOD Absolute Encoder

ROTACOD Absolute encoders. ROTACOD Absolute Encoder. ROTACOD Absolute encoders. Absolute Encoders. ROTACOD Absolute encoders. ( Fieldbus Encoders ). ROTACOD Absolute encoders. Absolute encoder generates a digital signal related to the position of a rotary axis.

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ROTACOD Absolute Encoder

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  1. ROTACOD Absolute encoders ROTACOD Absolute Encoder

  2. ROTACOD Absolute encoders

  3. Absolute Encoders ROTACOD Absolute encoders ( Fieldbus Encoders )

  4. ROTACOD Absolute encoders • Absolute encoder generates a digital signal related to the position of a rotary axis • The value of the signal is transmitted to a control logic that manages the received data • In presence of a power supply fail the physical position is not lost • The zero setting of the mechanical part is required only in the initial installation • No batteries or memories required to keep the position absolute value

  5. ROTACOD Absolute encoders Absolute Measuring Systems

  6. ROTACOD Absolute encoders Working Principle • The source of signals is a disc with a grated design forming tracks • Tracks have zones where light can pass through and obscured tracks through which light cannot pass • The light emitted by a lighting source go through the disc and is collected by a photo-diode on disc’s other side • While disc is rotating the photo-diode detects light variations, switching the output signal on and off

  7. ROTACOD Absolute encoders Track 1 Track 12 Working Principle • Using multiple tracks, the combination of On and Off of the single tracks generates an absolute value of position • As power is turned On, this value position is read from tracks and immediately sent to the output circuit • If disc has 12 tracks then 212 positions (4096 info/revolution) are available. • No repetitions of combinations of 1 and 0 are present on disc (unique code). • The main disc uses a Gray code as pattern

  8. ROTACOD Absolute encoders 10 12 14 2 11 13 15 0 1 3 4 5 6 7 8 9 D0 D1 D2 D3 Output signals Binary Decimal 23 22 21 20 0 1 0 1 = 5 1 0 0 1 = 9 1 1 1 0 = 14 • each line data line is a bit • 1 = bit high / 0 = bit low • the combination of 1 and 0 gives a coded value (position) to the control unit

  9. BCD 0011 0110 0000 เลขฐานสิบ 360 ROTACOD Absolute encoders Binary Coded Decimal (BCD) Code4 Bits (8 4 2 1)/ ตัวเลข [0 – 9] ==>

  10. ROTACOD Absolute encoders Gray codeรหัสที่อยู่ในตำแหน่งติดกันจะมีบิทที่แตกต่างกันเพียง 1 บิทเท่านั้น เช่น 0010 ลำดับต่อไปคือ 0110รหัสเกรย์จะนำไปใช้ประโยชน์มากในระบบการตรวจจับสัญญาณด้วยแสงหรือระบบการทำรหัสด้วยแกนหมุนทางกล (machanics) เพื่อบอกตำแหน่งของเพลาหมุน

  11. ROTACOD Absolute encoders Gray and Binary Code Binary Code Position 7 > 8 0 1 1 1 = 7 1 0 0 0 = 8 1 1 1 1 = 15 = X

  12. ROTACOD Absolute encoders การแปลงเลข Binary 10110 ให้เป็น Gray code วิธีทำ 1 0 1 1 0 Binary + + + + 11 1 0 1 Gray code

  13. ROTACOD Absolute encoders การแปลง Gray code 11011 ให้เป็นเลข Binary วิธีทำ 1 1 0 1 1 Gray code + + + + 1 0 0 1 0 Binary

  14. ROTACOD Absolute encoders • The value sent to the control unit can be as follows: • BINARY (more bits can change at the same time) • GRAY (successive values change a bit per time maximum) • BCD (binary code for each single number) • The absolute value can be sent to the control in several interfaces: • Parallel PROS: faster CONS: many wires to connect • Serial PROS: few wires to connect CONS: speed reduced • Field-bus PROS: several devices on the same line, bi-directional data transmission CONS: more sophisticated electronics • Value is read by the control and used for positioning and control of motors installed on the machinery

  15. ROTACOD Absolute encoders เทคนิคและวิธีการเลือกAbsolute Encoder • Counts Per Revolution (steps) > Single turn

  16. ROTACOD Absolute encoders

  17. ROTACOD Absolute encoders 2) Revolutions > Multi Turn

  18. ROTACOD Absolute encoders 3) Output Code • BCD • Binary • Gray

  19. ROTACOD Absolute encoders 4) Supply and Output Circuit Supply : Standard 10-30 VDC Output Circuit : NPN PNP Push-Pull > NPN/PNP SSI serial output RS422 Fieldbus

  20. ROTACOD Absolute encoders 5) Shaft , Bore Diameter Flexible Coupling

  21. ROTACOD Absolute encoders 5) Dimension Body Size ( Europe= mm, U.S. = Inch )

  22. ROTACOD Absolute encoders 12-pin 10-pin 7-pin 25-pin 19-pin 32-pin 6) Connection Connector(7-pin,10-pin, 12-pin ,19-pin, 25-pin,32-pin,41-pin.) Cable(1,3,5,10 meter etc.)

  23. ROTACOD Absolute encoders

  24. ROTACOD Absolute encoders

  25. ROTACOD Absolute encoders

  26. ROTACOD Absolute encoders ASC58 AS58 AS58S Standard singleturn encoder • based on Ø 58 mm standard • several customizations possible • up to 16 bits (65536 positions) • parallel or SSI interface • Gray or binary code • parity bit, electronic zero setting • complementary (sense of rotation) is standard for all models

  27. ROTACOD Absolute encoders ASC58 AS58 AS58S Standard singleturn encoder • materials handling, storage systems • packaging and food industry • metallurgy plants, marine industry • folding machines, presses • compatible to almost all competitors • Replacement of old Lika encoders by adapting flanges

  28. ROTACOD Absolute encoders AMC58 AM58 AM58S Standard multiturn encoder • up to 16 + 14 bits • parallel or SSI interface • Gray or binary code • parity bit, electronic zero setting

  29. ROTACOD Absolute encoders AMC58 AM58 AM58S Standard multiturn encoder • long-travel measuring • handling machinery, food, etc. • telescopic cranes, telescopes • high lift storage systems, conveyors • metallurgy plants • preferential encoder

  30. ROTACOD Absolute encoders AM58P - programmable multiturn encoder • max. 8192 inf./rev. x 4096 rev. • programmable with Lika SW or terminal SW • programmable code (gray, binary, BCD), parity bit (even, odd), resolution, complementary, zero setting, offset, latch, tri-state • teach-in function (resolution self-learning)

  31. ROTACOD Absolute encoders AM58P - programmable multiturn encoder • fits all applications • replacement for any absolute encoder • preferential encoder for distributors • stock version AM5812/4096PS-6

  32. ROTACOD Absolute encoders Absolute encoders with Fieldbus interface • Fieldbus interfaces as per the manufacturer specifications • up to 16 bits (singleturn) and 16 + 14 (multiturn) • all parameters programmable, device address set by dip-switches • CC-xx (connection caps) must be ordered separately

  33. ROTACOD Absolute encoders Absolute encoders with Fieldbus interface • factory automation • all automated machines • SW and manual on Lika’s website • preferential types available on stock (Profibus)

  34. ROTACOD Absolute encoders AS58 ISI - AM58 ISI absolute encoder with incremental output • incremental counting AB0, /AB0 • at power ON, it sends out an absolute position information • resolutions: 720-1024–2048 (S) 1024 PPRx4096 rev. (M) 2048 PPRx4096 rev. (M)

  35. ROTACOD Absolute encoders AS58 ISI - AM58 ISI absolute encoder with incremental output • an incremental axis becomes absolute by a simple hardware change • packaging, retrofit of old machines • PLCs with incremental encoder inputs • fits to any incremental counter • only competitor is T+R Electronic

  36. ROTACOD Absolute encoders ASR58 with integrated cam programmer • integrated cam programmer • 0,1° resolution (3600 CPR) • 120 cams per program • 16 programs can be stored • pulse output for speed measurement • fault signal indicating output status • analogue output

  37. ROTACOD Absolute encoders ASR58 with integrated cam programmer • packaging and food machines • tobacco machines • rotary index tables • tool changer

  38. ROTACOD Absolute encoders AS58 A - AM58 A encoder with analogue output • 0-5V, 0-10V, 4-20 mA outputs • resolutions: 4096 4096 x 16 512 x 64 256 x 256 • Shaft: Ø 6, 8, 9.52, 10, 12 mm

  39. ROTACOD Absolute encoders AS58 A - AM58 A encoder with analogue output • replacement of potentiometers and gear potentiometers • steering gears control

  40. ROTACOD Absolute encoders AST6 encoder with square flange • based on Ø 65 mm standard • up to 16 bits (65536 positions) • parallel or SSI • Gray, binary, BCD • parity bit, electronic zero setting • IP66 on the shaft side

  41. ROTACOD Absolute encoders AST6 encoder with square flange • for heavy-duty applications • metallurgy plants • presses • tobacco industry

  42. ROTACOD Absolute encoders AMC9 - AM9 thin housing encoder • Body : 90 mm • reduced length (40 mm) • 4096 or 8192 x 4096 total infos • SSI interface • international standard connections • AMC9 has shaft 15 mm • AM9 has shaft 10 mm

  43. ROTACOD Absolute encoders AMC9 - AM9 thin housing encoder • factory automation • short housing installations • high resolution with through hollow shaft

  44. ROTACOD Absolute encoders AS5 – AM5 small housing encoder • body  47 mm X 78 or 114 mm • Up to 2048 x 16, 64, 256 info • Parallel interface • Cable output with possibility of connector at its end

  45. ROTACOD Absolute encoders AS5 – AM5 small housing encoder • industrial applications • special applications • antennas, telescopes • when smaller body is required

  46. ROTACOD Absolute encoders XAC77 explosive-proof encoder • conformal to ATEX directive • 16 bits x 14 bits max resolution • NPN, Push-Pull, SSI interface • body  77 mm • Hollow shaft  10, 14, 15 mm • IP66 NEW !

  47. ROTACOD Absolute encoders XAC77 explosive-proof encoder • For quick or after power loss position info recovering in hazardous areas • direct mounting • high temperature range

  48. ROTAMAG Magnetic encoders MA58 MA58S MAC58 absolute magnetic encoder • Based on the AS58, AS58S, ASC58 housing • 12 bits x 16 bits max. • SSI or BISS output interface • Operating temperature -25°C÷+85°C max • IP67 • For high shock and moisture conditions

  49. ROTAPULS – COD ACCESSORIES SF draw wire actuator • linear measurements with 58 encoders • measuring lengths 5000 and 6800 mm • IP54 • approx. 0,1 mm accuracy • bridge cranes, hoists • automobile, trains, aircraft testing • ideal for retrofit, easy mounting • 5000 mm version on stock

  50. LINECOD Magnetic Measuring Systems LINECODEAbsolute Magnetic Measurement System

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