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2H2SP series - electromagnetic disc brakes

2H2SP series - electromagnetic disc brakes
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2H2SP series - electromagnetic disc brakes - 1

FABRYKA APARATURY ELEKTRYCZNEJ

2H2SP series - electromagnetic disc brakes - 2

Used in lifting mechanisms are mechanical brakes, electrically released spring actuated disk brakes, designed on the basis of brake H2SP. This brake immobilizes the weight during damage, incorrect manoeuver or breakdown. The brake must transfer all forces occurring in such situations. To meet such requirements while maintaining the drive as simple as possible in the mechanical part, simple asynchronous motor is used controlled by frequency converters, provided with electromagnetic disk brake of design specific for hoisting systems. Safety considerations have required designing a braking...

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2H2SP series - electromagnetic disc brakes - 3

Lid with a hole and a sealing ring Hole diameter [mm] Normalized hole diameter ranges d - standard geared bushing hole diameters d smax - maximum geared bushing hole diameters d* smax - at extra charge it is possible to manufacture the brakes with the specially increased diameter of the gear hub ** for the 2H2SP112 and 2H2SP132 brakes and for the geared bushing hole diameters from 32 to 35mm, the key groove with the width of 8 mm (the width of the groove is incompatible with PN/M-85005 and DIN 6885 standards)

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2H2SP 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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2H2SP 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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2H2SP series - electromagnetic disc brakes - 6

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 positioning of...

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2H2SP 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 or IKZ (KZ - microswitch, IKZ - inductive sensor) - control...

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