The incremental rotary encoders IRC with a LED as the light source in the standard industrial version converts rotary motion to elec tri cal sig nals by the photoelectronic scanning of rasters onto two glass el e ments [stator and ro tor]. Elec tri cal signals provide information of bi lat er al po si tion of two me chan i cal parts, angle turn or rotary motion. Com mon use of the IRC encoders is in con nec tion with display units or nu mer i cal control sys tems on ma chine tools or robots. They are excellent for application in other equip ment where meas ur ing accuracy and re li a bil i ty are required.

IRC330 – 335 – outer shaft R 12 mm ended with screw thread M8 x 5,5mm. The shaft shape can be specified according to the customer’ s requirements. Incremental rotary encoders IRC with LED as the light source in the standard industrial version transform rotating motion in electric signals by means of photoelectric raster scanning of two glass elements (stator and rotor). They are assigned to mediate electric information about the mutual position of two mechanic units, the angle turn or rotating motions. IRC encoders are used mostly in connection with number indications or control systems. They can be used also in other devices, where high preciseness and reliability of measuring is required.

The incremental rotary encoders IRC with LED diode as the light source in the standard industrial version convert the rotation to two elektrical sinusoidal incremental signals (1 and 2) with bilateral shift by 90° with approximate amplitude of 1 V pp and one zero impulse (3) per one rotation with approximate amplitude of 0,5 V. They are designed for transmission of electrical information on alignment of two mechanical units, their angle shift or rotational movements. The encoder IRC is mostly used together with digital indication or control systems. They may be used in other devices requiring high accuracy and reliability of measurement and transmission of signal over long distances.

This encoder is a part of the VALEO motor (only example) and they convert rotary movement onto two electrical signals, each other shifted 90° el. The encoder is used to accurate control of motor speed (or torque if needed) in combination with an electronic control unit. The encoder is adjusted in whole speed range for motor VALEO in both directions. In the development department a similar type of sensor with two or four impulses per rotation is available. With respect to use of electrostatic sensitive components we recommend to connect the encoders without voltage applied and at compliance with rules for handling with electrostatic sensitive devices.

The IRC900 is a special version of the incremental encoder, which is composed from two incremental rotary encoders, inside interconnected using homokinetic coupling, usually with different number of pulses (or with different design of electrical output circuits too). The twosided output shaft with diameter of 6 mm can be connected using homokinetic coupling to any device and also it provides connection to another encoder – for example to tachodynamo.

IRC520-5 is a manual incremental hand wheel with locking, dedicated for manual control and entering of information into control systems of CNC machines, where high mechanical endurance is requested for the locking mechanism and for high radial and axial loading on the output shaft. It is possible to place any control hand wheel on the output shaft with diameter of 10 mm. IRC520 – 5 with LED in the illuminator and in standard industrial confi guration converts rotary movement of the shaft, which generates sequence of output signals. For division of 100 pulses, the signal 1 is at level H and signal 2 at level L in the locked position. Each position is locked. Other setting according to agreement with producer. IRC520 – 5 can be equipped by producer with a control hand wheel with scale.

Inkrementální rotační snímače typu IRC s miniaturní žárovkou v osvětlovači a ve standardním průmyslovém provedení převádí ro tační pohyb na elektrické signály pomocí fotoelektrického snímá ní rastrů dvou skleněných prvků (statoru a rotoru). Jsou určeny pro zprostředkování elektrické informace o vzájemné poloze dvou me chanických celků, úhlovém natočení nebo rotačních pohybech. Typické použití pro snímače typu IRC je ve spojení s číslicovými indikacemi nebo řídícími systémy. S výhodou je lze použít i v jiných za řízeních, kde je potřebná vysoká přesnost a spolehlivost odměřování. V nových aplikacích doporučujeme použít snímače řady IRC 300 a 325, typ IRC 125 a 126 používejte jen jako náhradní díly.

Inkrementální rotační snímače typu IRC s miniaturní žárovkou v osvětlovači a ve standardním průmyslovém provedení převádí rotační pohyb na elektrické signály pomocí fotoelektrického snímání rastrů dvou skleněných prvků (statoru a rotoru). Jsou určeny pro zprostředkování elektrické informace o vzájemné úhlové poloze dvou mechanických celků, úhlovém natočení nebo rotačních pohybech.Typické použití pro snímače typu IRC je ve spojení s číslicovými i ndikacemi nebo řídícími systémy. S výhodou je lze použít i v jiných zařízeních kde je potřebná vysoká přesnost a spolehlivost odměřování. Snímač IRC205 je vybaven obvodem hlídajícím funkci žárovky. Při přepálení vlákna dojde k převedení výstupních obvodů do stavu vysoké impedance. V nových aplikacích doporučujeme použít snímače řady IRC 300 – 325, typ IRC 202 a 205 používejte jen jako náhradní díly.

The modifi cation (non standard design) of encoders of IRC3x5F line. Utilisation of highly sensitive optics enables to reduce the current of illuminator, hence overall consumption of encoder. Utilisation of new electronic circuitry on the other hand has enabled the full functionality at higher frequencies. These features predetermine the encoder into the new category with specifi c operational condition stated above. Its parameters are specifi ed in the table. IRC3x5F encoder will be supplied with division of 512, 1024, 2048, 2500 impulses per revolution.

The encoders of IRC3x8 line have built-in interpolator and they present upgrade of sinusoidal encoders of IRC3x7 line. Interpolator has enabled the division of sinusoidal signal 1x, 2x, 5x and 10 times. A grade of interpolation can be adjusted on demand of our customer in LARM, so the encoder can increase the number of information per revolution. With quadruple evaluation of quadratural signal 1 and 2 the number of states is up to 40 times higher. When appropriate, the driving signal could be taken to the connector so it can be used for switching of grade of interpolation (because there is only one free connector pin available it is possible to switch between two stages e.g. 1x/10x only). As output circuits the line drivers RS422 (non-function included) are used. Basic parameters are stated in a table. Dimension of encoder are identical to dimension of IRC300-325 and IRC3x7 line.

Within the scope of enrichment of our offer we supplement our assortment with incremental rotary encoders of diameter 36,5 mm with quadratural signal under the denomination of IRC6xx line. Connecting dimension has been designed to maintain the compatibility with encoders used in Europe. As to the mechanical design we offer two modifi cations of fl anges (IRC60x and IRC 61x). As to the electrical design the encoder is basically connected with 1m long cable with axial or lateral cable grommet. The length of cable can be optionally adapted by the demand of customer (as well as with other models of encoders). Electronic circuitry is designed to the supply voltage 5 V with differential output RS 422 or for +10 to +30 V with differential output HTL.

ARC400 – 425 are absolute one-revolution rotating encoders with a standard industrial design on a diameter of 58 mm and distinction of up to 2. It transforms the angle of turning to the corresponding electronic digital information in the Gray´s code and in the number of bits established by the distinction by means of photoelectrical scanning of two rasters (rotor and stator). Absolute encoders do not lose information about the position even at the time when they are not energized. Outlet bits are brought out in parallel to individual pins of a connector or cable conductor. Absolute encoders are destined for intermediation of electric information about the mutual position of two mechanical parts or about rotation movements (speed, acceleration, number of rotations and the angle of turning). At customer’s request it is possible to bring out in the connector an error message informing about the function of the illuminant. When the distinction is 2¹³, a phase-shifted incremental signal with a distinction of 2048 impulses per rotation (without negation) is also brought out to the thirteen bit. For distinction 2¹⁰ a 12-pin connector is used, for higher distinctions a 16-pin connector is used, and for special designs up to 19 pin-ones are used.

The length measuring gauges MSL30 and MSL50 is used for the accurate measuring of short distances (30 and 50 mm) for example in metrology, precision engineering, gauging and selecting automatic machines or as an accurate limit switch for measuring position and speed. In connection with digital read-outs it can be used as a dial indicator. The measuring gauge is equipped with a restoring spring which defines a moment in any measuring position. On request the gauge can be supplied without the restoring spring. Optical information of position is transformed by electronic circuits to electrical impulses (increments). The length measuring gauge MSL can fully replace the length measuring gauge MS.

The draw-wire encoder is intended for measuring lengths (electronic measuring tape), and linear trajectory. The encoder is usually firmly attached to a basis and the suspension of the wire with the object to be measured. Rewinding the wire is provided with a spring. It is possible to deliver the encoder with incremental encoder (LS-I type) or multi-turn potentiometer (LS-P type). In the encoder with a potentiometer, the measured trajectory is proportional to the resistance, and the value is absolute, analogue. In the incremental encoder, the distance is proportional to the number of pulses, and is relative. The resolution is given by the number of pulses per revolution. In case the incremental encoder is equipped with zero pulse, the latter is sent at each revolution of the coil – i.e. 10-times for the whole measuring range.

The incremental hand wheel IRC515 with a LED as the light source in the standard industrial version converts rotary motion to elec tri cal sig nals by the photoelectronic scanning of rasters onto two glass el e ments (stator and rotor). Electrical signals provide information of bi lat er al po si tion of two mechanical parts, angle turn or rotary motion. Com mon use of the IRC handwheel is for the manual control and insertion of data es pe cial ly with numerical control systems.

The manual incremental hand wheel IRC530, 535, 536, 537 and 539 in standard industrial confi guration converts rotary movement, which is manually entered using the hand wheel, by means of photoelectric sensing, to sequence of electric rectangular pulses in the signals A and B (or in their negations) each other shifted of 90° electrical. Solid design with the shaft diameter of 10 mm, with bearings and durable positioning mechanism enables using of this encoder in hard conditions, e.g. as a support hand wheel for CNC machines. The encoder can be supplied with the face panel or without the panel. This encoder can fully replace the encoder IRC505.