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INCREMENTAL ENCODERS
ABSOLUT ENCODERS

The standardisation challenge to digital feedback

With the come of new digital tecnologies era, digital encoders inheredited the application market that formerly was leaded by tachos.
Radio-Energie, world leader in the electromechanical sector of trasducers, offer to customers a series of encoders that takes on the company main features of reliance, robustness and quality that are the main target of the manufacturer.

Flange RE.0444

Standard pulse per revolution :
256 – 500 – 1000 – 1024 – 1500 - 2000 – 2048 – 2500.
(It is possible to supply every kind of ppr value on demand: from 1 up to 10.000 depending on encoder type).

2 Channels + 0 and negative.

Electronics configurations :
Line Driver RS-422, TTL, Push Pull,
(It is possible to supply every kind of configurations on demand, such as PNP, NPN and others).

Power supply
5V and 8/24V (LD), 5/28V (PP), 24/out 5V (TTL).

Output
Military connectors 7 e 10 Pin + female
12 Pin steel + Female
Free cable
Free cable + connector + female

GENERAL NOTES

ENCODER AND ITS APPLICATIONS

Encoder is a signal transducer that converts the movement made by the angular rotation on its axis in a train of electrical impulses digital.
The appropriate detection of pulses allow to measure linear displacements, angular acceleration and speed of rotation.
The electrical signals emitted dall'encoder can be developed through joint control systems such as PLC, CNC, etc..
The most common applications as the cover entire industrial world: from steel to paper, from the packaging machine tool through the motor ac / dc, from robotics to process control

HOW DOES IT WORK

'The detection of angular movement does through a crawl photodetector.
The mechanism consists of a rotation in the optical disk (containing a grid radial graduated), which is illuminated by a perpendicular photoemitter (beam infrared rays - LED). The projection of the resulting image is captured by a photoreceiver (on the surface where there is a grid of equally passage of the Optical Disk).
The variations of light detected by photoreceiver resulting from rotation of the disk, are then converted into electrical signals. These signals, properly processed, generate impulses (free from disturbance and squared).
In order to increase quality and stability signals is adopted reading system differential (comparing two similar signals and staggered to 180 ° electrical among them). The final reading is done by difference of the two signals eliminating disturbs that, overlapped, are the same on every waveform.

MAIN STRUCTURAL COMPONENTS

The case is metallic, except for the application on ac servomotors in which it is made of a special fiber component polycarbonate.

The ball bearings, from a primary manufacturer, may be high degree of protection (depending on the degree required by customer). Other types of bearings are used for special applications.

Discs are entirely produced in laboratories Radio-Energie, they are made of polycarbonate (up to 2500 I / G), glass or metal (high resolutions, up to 10,000 ppr).

The electronic components are produced and developed in collaboration with leading companies in this sector thus ensuring a high level of quality.

The machining (shafts, houses, various applications, etc. ...) are carried out exclusively in the establishment Radio-Energie and at the companies it certified that the whole production process can be kept under tight control, with the utmost respect for ISO certification 9001, ensuring the highest standard of quality.

PRODUCTION RANGE

The production range of Radio-Energie includes incremental encoders, absolute (monorevolution and multi), with incremental steps switching, sinusoidal.

The main focus of the current production is for incremental encoder for which they made the following standardized applications. The main concept is a management stock with the aim of satisfying in a very short time the market demands. (The types stored may be subject to change).

Standardization of the "case"

In order to standardize the production, optimizing costs and manufacturing times are adopted three "houses" within which are included various mechanical. Referring to the existing market, hence the "size / size of encoder most common is derived as follows: case 40 (which embraces all types of encoders" small "); houses 58 (which covers all types interim until the classical "flange RE.0444) and 58 special case (for cable axis and cross axis, the servo c).

Standardization of the "flange"

The multiplicity of executions carried out by all the world's manufacturers of this product Radio-Energie has identified certain applications, reported in the following pages, which has standardized (eg RE.0444 flange; flange Quadra 63.5; Servoflange motor ac; etc. ..). This process allows you to cover most of the demands of the market within a very short space of time. Even in this case, on demand, are achievable all types of flange and shaft not covered in this catalogue (compatible with the characteristics general project).

Standardization of "electronic"

The standardized electronic, for which there is a management stock are: Line Driver (RS422 compatible); Push Pull; TTL; PNP; NPN (See diagrams shown in the following pages). At the order all other electronic equipment are performed for which is scheduled on a management contract.

Standardization of the "pulses"

The pulses are standardized around: 256 - 500 - 1000 - 1024 - 1500 - 2000 - 2048 - 2500. On demand all the necessary pulses to clients can be made(from 1 up to 10,000 depending on the type of encoder).

Standardization of the "connections"

The connectors are standardized Mil 7 or 10 Pin (fuzione of electronic) complete Female Volante and steel 12 Pin also complete Female Volante. The output connection is a Radial. Here too are achievable other types of connections and combined output for which is scheduled on a management contract.
For servo a.c. The solution is given top priority with Release Cable Radius (mm x) + Connector Mil.

Standardization of the "feet"

The standardized design is reported in the pages of this catalogue. At the order constructive run variations that evaluated technically, I am committed to run.

STORING AND SHIPPING

The encoder is an electromechanical measuring precision instrument so you must follow certain rules of storage and installation to preserve intact functions and characteristics thereof.

1. Store only in a dry place and without aggressive atmosphere (relative hygrometric degree <= 60%)
2. Storing temperature between -25°C / +70°C
3. Store encoder inside the box until it must be mounted and used (inside the box there are all infos for mechanical mountings and others)

1. Do not make any machine tool operation on the shaft (hole, cuts,, etc..)
2. Do not mount hte encoder using tool that can damage or deflect the case
3. Do not fix the encoder using hatch or other instrument that can damage the device
4. Couple the device using mechanical precision joints (metallic joints)
5. Fix encoder using all the original holes
6. Do not apply net supply or other tension supply whose values are different from the electrical feature for which the ecnoder has been made (do not cause electric shocks)

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