rotacod absolute encoder rotacod absolute encoders

ROTACOD Absolute Encoder

ROTACOD Absolute encoders

Absolute Encoders

( Fieldbus 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

Absolute Measuring Systems


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


• 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

Track 1

Track 12

Working Principle


0 =01 1 5

2022 2123

Binary Decimal

1 =00 1 9

1 =11 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


2 31 15

14

13124 6 75 8 9 10110

D0

D1

D2

D3

Output signals

Binary Coded Decimal (BCD) Code4 Bits (8 4 2 1)/ ตั�วเลข [0 – 9]

BCD

0011 0110 0000

เลขฐานสิ�บ

360

==>


Gray code

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Gray and Binary Code


Position 7 > 8

0 1 1 1 = 7

Binary Code

1 0 0 0 = 8

1 1 1 1 = 15 = X

กัารแปลงเลข Binary 10110 ใหั(เป-น Gray code

ว�ธี�ที่�า

1 0 1 1 0 Binary

+ + + +

1 1 1 0 1 Gray code


กัารแปลง Gray code 11011 ใหั(เป-น เลข Binary

ว�ธี�ที่�า

1 1 0 1 1 Gray code

+ + + +

1 0 0 1 0 Binary



• 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

เที่คืน�คืและว�ธี�กัารเล&อกั Absolute Encoder

1) Counts Per Revolution (steps) > Single turn


ROTACOD Absolute encodersORD. CODE COUNTS REV.REVOLUTIONS TOT.COUNTS.

ASxx04 16 1 16

ASxx05 32 1 32

ASxx06 64 1 64

ASxx07 128 1 128

ASxx18 180 1 180

ASxx08 256 1 256

ASxx36 360 1 360

ASxx09 512 1 512

ASxx72 720 1 720

ASxx90 900 1 900

ASxx10 1024 1 1024

ASxx40 1440 1 1440

ASxx50 1800 1 1800

ASxx11 2048 1 2048

ASxx80 2880 1 2880

ASxx81 3600 1 3600

ASxx12 4096 1 4096

ASxx13 8192 1 8192

ASxx14 16384 1 16384

ASxx15 32768 1 32768

ASxx16 65536 1 65536

ASxx17 131072 1 131072

SCHDULE COUNTS / REV. ABSOLUTE SINGLE TURN ENCODERS

2) Revolutions > Multi Turn


ORD. CODE COUNTS REV. REVOLUTIONS TOT.COUNTS.

AMxx04/16 16 16 256

AMxx05/16 32 16 512

AMxx06/16 64 16 1024

AMxx07/16 128 16 2048

AMxx08/16 256 16 4096

AMxx09/16 512 16 8192

AMxx10/16 1024 16 16384

AMxx11/16 2048 16 32768

AMxx12/16 4096 16 65536

AMxx13/16 8192 16 131072

AMxx04/64 16 64 1024

AMxx05/64 32 64 2048

AMxx06/64 64 64 4096

AMxx07/64 128 64 8192

AMxx08/64 256 64 16384

AMxx09/64 512 64 32768

AMxx10/64 1024 64 65536

AMxx11/64 2048 64 131072

AMxx12/64 4096 64 262144

AMxx13/64 8192 64 524288

SCHDULE COUNTS / REV. ABSOLUTE MULTI TURN ENCODERSAMxx04/256 16 256 4096

AMxx05/256 32 256 8192

AMxx06/256 64 256 16384

AMxx07/256 128 256 32768

AMxx08/256 256 256 65536

AMxx09/256 512 256 131072

AMxx10/256 1024 256 262144

AMxx11/256 2048 256 524288

AMxx12/256 4096 256 1048576

AMxx13/256 8192 256 2097152

AMxx04/4096 16 4096 65536

AMxx05/4096 32 4096 131072

AMxx06/4096 64 4096 262144

AMxx07/4096 128 4096 524288

AMxx08/4096 256 4096 1048576

AMxx09/4096 512 4096 2097152

AMxx10/4096 1024 4096 4194304

AMxx11/4096 2048 4096 8388608

AMxx12/4096 4096 4096 16777216

AMxx13/4096 8192 4096 33554432

AMxx14/4096 16384 4096 67108864

AMxx15/4096 32768 4096 134217728

AMxx16/4096 65536 4096 268435456

AMxx17/4096 131072 4096 536870912

3) Output Code

BCD

Binary

Gray


4) Supply and Output Circuit

Supply : Standard 10-30 VDC

Output Circuit :

NPN

PNP

Push-Pull > NPN/PNP

SSI serial output RS422

Fieldbus


5) Shaft , Bore Diameter

Flexible Coupling


5) Dimension Body Size ( Europe= mm, U.S. = Inch )


6) Connection Connector (7-pin,10-pin, 12-pin ,19-pin, 25-pin,32-pin,41-pin.)

Cable (1,3,5,10 meter etc.)


7-pin10-pin

19-pin 32-pin

12-pin

25-pin

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

• 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


ASC58 AS58 AS58S Standard singleturn encoder


• up to 16 + 14 bits

• parallel or SSI interface

• Gray or binary code


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

AMC58 AM58 AM58S Standard multiturn encoder

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)


• fits all applications

• replacement for any absolute encoder

• preferential encoder for distributors

• stock version AM5812/4096PS-6

AM58P - programmable multiturn encoder

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


• factory automation

• all automated machines

• SW and manual on Lika’s website

• preferential types available on stock (Profibus)

Absolute encoders with Fieldbus interface

AS58 ISI - AM58 ISIabsolute 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)


• 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

AS58 ISI - AM58 ISIabsolute encoder with incremental

output

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


• packaging and food machines

• tobacco machines

• rotary index tables

• tool changer

ASR58 with integrated cam programmer

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


• replacement of potentiometers and gear potentiometers

• steering gears control

AS58 A - AM58 A encoder with analogue output


AST6 encoder with square flange

• based on Ø 65 mm standard

• up to 16 bits (65536 positions)

• parallel or SSI

• Gray, binary, BCD


• IP66 on the shaft side


AST6 encoder with square flange

• for heavy-duty applications

• metallurgy plants

• presses

• tobacco industry

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


AMC9 - AM9 thin housing encoder

• factory automation

• short housing installations

• high resolution with through hollow shaft

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


AS5 – AM5 small housing encoder

• industrial applications• special applications• antennas, telescopes• when smaller body is required


• 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

XAC77 explosive-proof encoder


• For quick or after power loss position info recovering in hazardous areas

• direct mounting• high temperature range


XAC77 explosive-proof encoder

ROTAMAG Magnetic encoders

MA58 MA58S MAC58 absolute magnetic encoder

• For high shock and moisture conditions

• 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

SF draw wire actuator

ROTAPULS – COD ACCESSORIES

• 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

LINECODEAbsolute Magnetic

Measurement System

LINECOD Magnetic Measuring Systems


LINECOD System Combinations

MTA5 absolute magnetic tape

• in plastic and steel

• absolute magnetic coding

• accuracy class ±50 μm/m

• temperature coefficient: 11±1 μm/k

• lenght available: up to 5.1 m


SMA5 absolute magnetic sensor

• up to 5 m measuring length• integrated SSI interface• 0,005 mm resolution• zero setting function• complementary function• IP67• to be used with MTA5 magnetic

tape



SMA5 absolute magnetic sensor

• insensitive to power outages

• real absolute measurement

• linear motors

• tool machines

• measuring equipment

• compact design

MC150 display

POSICONTROL – Displays

• 96 x 72 x 71 mm

• 6 digit LED display

• power: 24Vac/dc, 115Vac, 230Vac

• counting frequency 330 kHz

• 2 digital outputs, 2 relay (O), RS232 (O)

• IP43

• for encoders and SMEx, SMK sensors

LD200: Universal programmable display

• 96 x 48 x 69 mm• 8 digits, LED 10 mm• power supply: 18Vac, 24Vdc

20%• Max. 500 kHz counting

frequency• inputs: AB0, SSI, 1Vpp, SMx

sensor• RS232 interface• 3 x 24V digital outputs @ 50mA• IP54 protection (when mounted)

• universal usage, ideal as stock unit• easy set-up (intelligent menue) • easy connection with block terminals and Dsub conn. • very compact, with mounting clips

POSICONTROL Displays

possible device types

M_SSIabsolute SSI

POSICONTROL DisplaysE_Incr

PP,LD (A, B, 0)

E_1Vpp

SIN/COS 1Vpp

E_SSI

absolute SSI

M_Sens

Lika magnetic sensors

SM2, SM25, SM5

M_Incr

PP, LD (A, B, O)

M_1Vpp

SIN/COS 1Vpp

LD200

www.lika.biz

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