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NE series - electromagnetic disc brakes

NE series - electromagnetic disc brakes
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NE series - electromagnetic disc brakes - 1

FACTORY OF ELECTRIC APPARATUS EMA – ELFA Sp. z o.o. st Pocztowa 7, 63-500 Ostrzeszów, PL phone: +48 62 730 30 51 fax: +48 62 730 33 06 handel@ema-elfa.pl ELECTROMAGNETIC DISC BRAKES NE SERIES WITH CONSTANT BRAKING TORQUE HIGH LEVEL OF PROTECTION

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NE series - electromagnetic disc brakes - 2

NE series is direct current electromagnetic brakes, spring-loaded with electromagnetic release. Intended for rotating machine parts stopping and precise positioning. Can be used for positioning and as safety brakes. These brakes are designed, built and tested in conformance with requirements of ISO 9001 and ISO 14001 quality management standards. Our products, described in this information sheet, have CE marks, which means that they are compatible with EU safety-related directives. NE series brakes feature high repeatability, also at high operating rates. They can be powered from...

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NE series - electromagnetic disc brakes - 3

BORINGS FOR SCREWS D5 Type ■ at an extra charge, brakes can be produced with custom maximum diameter of the

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NE series - electromagnetic disc brakes - 4

ELECTRICAL EQUIPMENT A number of modules, ranging from simple circuits with classic designs, to complex assemblies ensuring quick action and drives positioning have been designed to drive the brakes. Relevant brake applications with switching in the primary or secondary circuits are ensured by half- or full-wave rectifiers and fast electronic circuits. The manufacturer recommends to use as low alternating current voltages as possible to supply the brakes. Appropriate choice of the control voltage will prevent or at least limit surges that may occur in power supply circuits. It is not...

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NE series - electromagnetic disc brakes - 5

Disconnection of power supply on AC side The diagram presents connection of rectifiers to supply circuit of motor. When disconnecting the voltage, the magnetic field causes the coil current to flow further through the rectifying diodes and drops slowly. The magnetic field reduces gradually causing prolonged time of braking action and consequently delayed increase of braking torque. If action time is irrelevant, brake should be connected on the AC side. When switching off, the supply circuits act as rectifying diodes. Disconnection of power supply on DC side The diagram presents connection...

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NE series - electromagnetic disc brakes - 6

Rectifier PS-1 Circuit PS-1 is built on the basis of MOSFET type semiconductor technique which enabled achieving effects not available in traditional designs. The brake electromagnet energized through circuit of this construction enables the brake to achieve connection and disconnection time parameters analogous to breaking of circuit on direct current side. The parameters obtained are not however gained through utilization of additional electrical circuits and switches. Simplicity of installation and parameters achieved enable very wide application, particularly in cases requiring...

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NE series - electromagnetic disc brakes - 7

Having in mind the user who requires the control of the brake, we have designed special signaling and control circuits, which enable to control the state of the brake (engaged, disengaged) and the wear of the plate lining. The usage of these circuits enables to control the brake with the use of automatic elements, which ensure high level of safety and reliability. Due to its compact design, the microswitch can be used in any other applications, as long as its parameters meet design requirements. Response monitoring microswitch - KZ - control of the state of brake (engaged,...

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