5251-2 – Current Regulated Power Supply

Description du produit
Model 5251-2 is an open frame, 0-1A current regulated power supply for use with Magtrol hysteresis brakes and clutches. It has a high input impedance that allows for a variety of sensors and transducers to be used. It features a selectable 0-100 mV/0-5 VDC monitor out that allows connection to a PLC, voltmeter, display or other monitoring device. This allows the user to monitor the current applied directly to the brake or clutch, if desired. With regulated current, torque drift caused by temperature changes within the brake coil is eliminated. Braking control is enabled by using either a 10-turn potentiometer or by an external 0–5 VDC control signal.
Ordering Information
| 5251-2 | Current Regulated Power Supply 115 VAC |
| 5251-2A | Current Regulated Power Supply 230 VAC |
Specifications
| Brake Voltage |
24 VDC |
| Current Ranges |
0-200 mA, 0-500 mA, 0-1000 mA |
| Current Regulation |
±1% Full Scale |
| Braking Control |
10-Turn Potentiometer or
0-5 VDC External Control |
Current Monitor
Output |
Selectable Ranges:
0-200 mV DC
0-500 mV DC
0-1000 mV DC
0-5 V DC |
Line Fuse
(5 x 20 mm) |
5251-2: 115 V IEC 1.0 A 250 V T
5251-2A: 230 V IEC 0.4 A 250 V T |
Brake Fuse
(5 x 20 mm) |
IEC 1.25 A 250 V T |
Power
Requirements |
70 VA |
Voltage
Requirements |
115/230 VAC 50/60 HZ |
Max. Compliance
Voltage |
45 VDC |
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[post_content] => De même que les frein à hystérésis, ces embrayages magnétiques développent leur couple exclusivement à l'aide du champ magnétique de l'entrefer. Une transmission de l'entraînement sans à-coups vers l'élément entraîné est de ce fait garantie. Alimenté sans balais ni bagues collectrices, cet embrayage magnétique à hystérésis ne dépend ni de poudre magnétique ni d'éléments de friction. Il n'exige donc plus de maintenance ni d'étanchéisation. Les freins et embrayages magnétiques à hystérésis se prêtent de ce fait idéalement à toute application dans l'industrie alimentaire ou pharmaceutique.
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[post_content] => Les freins dynamométriques à poudre ou freins à poudre magnétique (TPB Série) sont idéaux pour les applications à faible vitesse ou à couple moyen à élevé. Ces freins à poudre magnétique délivrent le couple de freinage complet dès l'arrêt et sont refroidis par convection ou par air. Ils permettent une puissance de freinage jusqu'à 900 W (2100 W avec refroidissement par air).
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[post_content] => Depuis 1953, Magtrol a créée ou adaptée des milliers de freins spéciaux et des embrayages pour aider à résoudre les besoins d'application spécifique de ses clients.
Configurations spéciales:
- Tensions de bobines non standards
- Configurations spéciales d'arbres : rainures, méplats, trous, cavités
- Arbres alongés
- Freins refroidis par air pulsé
- Freins à aimant permanent réglables
- détecteurs de vitesse (pickup)
- Configurations spéciales de montage
- brins spéciaux de connexion : matériau, longueur, emplacement
- Valeur de couple élevée
- Unités à haute vitesse
- Combinaisons Frein / embrayage
- anti-poussières
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[post_content] => Les freins à aimant permanent de Magtrol se prêtent tout spécialement aux applications dont l’alimentation électrique des freins ou des embrayages magnétiques ne peut être envisagée. Bien que les applications avec couple constant constituent l’idéal pour de tels freins, Magtrol peut également offrir des appareils selon les spécifications particulières des clients. Normalement utilisé pour générer un couple, le montage d’un axe d’entrée sur un frein transforme ce dernier en embrayage magnétique. L’ensemble stator/boîtier devient alors entraînant, le rotor et l’axe la partie entraînée, le couple étant transmis par l’entrefer. Tout comme pour
les freins et
embrayages magnétiques à hystérésis, Magtrol garantit les mêmes caractéristiques de fonctionnement sans à-coups, d’excellente répétabilité et une longue durée de vie pour ses freins à aimant permanent.
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