Absolute encoder generates a digital signal related to the
position of a rotary axisAbsolute 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 lostIn 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 installationThe zero setting of the mechanical part
is required only in the initial installation No batteries or
memories required to keep the position absolute valueNo batteries
or memories required to keep the position absolute value
Slide 6
Absolute Measuring Systems ROTACOD Absolute encoders
Slide 7
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 ROTACOD Absolute encoders
Slide 8
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 2 12
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
ROTACOD Absolute encoders
Slide 9
0 = 0115 2 0 2 2 2 1 2 3 Binary Decimal 1 = 0019 1 = 11014 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
ROTACOD Absolute encoders Output signals
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
Slide 16
A bsolute Encoder 1)Counts Per Revolution (steps) > Single
turn ROTACOD Absolute encoders
Slide 17
Slide 18
2) Revolutions > Multi Turn
Slide 19
3) Output Code BB CD BB inary GG ray
Slide 20
4 ) Supply and Output Circuit Supply : Standard 10-30 VDC
Output Circuit : NPN PNP Push-Pull > NPN/PNP SSI serial output
RS422 Fieldbus
5 ) Dimension B ody Size ( Europe= mm, U.S. = Inch )
Slide 23
6 ) Connection C onnector ( 7-pin,10-pin, 12-pin,19-pin,
25-pin,32-pin,41-pin.) C able (1,3,5,10 meter etc.) 7-pin 10-pin
19-pin 32-pin 12-pin 25-pin
Slide 24
ROTACOD Absolute encoders
Slide 25
Slide 26
Slide 27
ASC58 AS58 AS58S Standard singleturn encoder ROTACOD Absolute
encoders based on 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
Slide 28
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 ROTACOD Absolute encoders ASC58 AS58
AS58S Standard singleturn encoder
Slide 29
ROTACOD Absolute encoders up to 16 + 14 bits parallel or SSI
interface Gray or binary code parity bit, electronic zero setting
AMC58 AM58 AM58S Standard multiturn encoder
Slide 30
ROTACOD Absolute encoders 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
Slide 31
AM58P - programmable multiturn encoder ROTACOD Absolute
encoders 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)
Slide 32
ROTACOD Absolute encoders fits all applications replacement for
any absolute encoder preferential encoder for distributors stock
version AM5812/4096PS- 6 AM58P - programmable multiturn
encoder
Slide 33
Absolute encoders with Fieldbus interface ROTACOD Absolute
encoders 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
Slide 34
ROTACOD Absolute encoders factory automation all automated
machines SW and manual on Likas website preferential types
available on stock (Profibus) Absolute encoders with Fieldbus
interface
Slide 35
AS58 ISI - AM58 ISI absolute encoder with incremental output
ROTACOD Absolute encoders incremental counting AB0, /AB0 at power
ON, it sends out an absolute position information resolutions:
720-10242048 (S) 1024 PPRx4096 rev. (M) 2048 PPRx4096 rev. (M)
Slide 36
ROTACOD Absolute encoders 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 ISI
absolute encoder with incremental output
Slide 37
ASR58 with integrated cam programmer ROTACOD Absolute encoders
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
Slide 38
ROTACOD Absolute encoders packaging and food machines tobacco
machines rotary index tables tool changer ASR58 with integrated cam
programmer
Slide 39
AS58 A - AM58 A encoder with analogue output ROTACOD Absolute
encoders 0-5V, 0-10V, 4-20 mA outputs resolutions: 4096 4096 x 16
512 x 64 256 x 256 Shaft: 6, 8, 9.52, 10, 12 mm
Slide 40
ROTACOD Absolute encoders replacement of potentiometers and
gear potentiometers steering gears control AS58 A - AM58 A encoder
with analogue output
Slide 41
ROTACOD Absolute encoders AST6 encoder with square flange based
on 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
Slide 42
ROTACOD Absolute encoders AST6 encoder with square flange for
heavy-duty applications metallurgy plants presses tobacco
industry
Slide 43
AMC9 - AM9 thin housing encoder ROTACOD Absolute encoders 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
Slide 44
ROTACOD Absolute encoders AMC9 - AM9 thin housing encoder
factory automation short housing installations high resolution with
through hollow shaft
Slide 45
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 ROTACOD Absolute encoders
Slide 46
AS5 AM5 small housing encoder industrial applications special
applications antennas, telescopes when smaller body is required
ROTACOD Absolute encoders
Slide 47
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 ROTACOD Absolute encoders
Slide 48
For quick or after power loss position info recovering in
hazardous areas direct mounting high temperature range ROTACOD
Absolute encoders XAC77 explosive-proof encoder
Slide 49
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 -25C+85C max IP67
Slide 50
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
Slide 51
LINECODE Absolute Magnetic Measurement System LINECOD Magnetic
Measuring Systems
Slide 52
LINECOD System Combinations
Slide 53
MTA5 absolute magnetic tape in plastic and steel absolute
magnetic coding accuracy class 50 m/m temperature coefficient: 111
m/k lenght available: up to 5.1 m LINECOD Magnetic Measuring
Systems
Slide 54
Slide 55
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
LINECOD Magnetic Measuring Systems
Slide 56
SMA5 absolute magnetic sensor insensitive to power outages real
absolute measurement linear motors tool machines measuring
equipment compact design
Slide 57
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
Slide 58
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
