Elevator brake controller

The invention refers to an elevator brake controller (10), comprising - a brake supply circuit (12) comprising a rectifier with a mains input side and a DC link output side, whereby in the mains input side and/or in the DC link (DC+, DC-) output side at least one fuse (F1) is connected, - a brake co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Nakari, Arto
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ELEVATORS ESCALATORS OR MOVING WALKWAYS GENERATION HAULING HOISTING LIFTING PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention refers to an elevator brake controller (10), comprising - a brake supply circuit (12) comprising a rectifier with a mains input side and a DC link output side, whereby in the mains input side and/or in the DC link (DC+, DC-) output side at least one fuse (F1) is connected, - a brake control circuit (14) with at least one brake coil (C) of an elevator brake, which brake coil (C) is connected in series with a control switch (S3) configured to be controlled by an elevator control (18), which series connection of brake coil (C) and control switch (S3) is connected to the DC link (DC+, DC-), - a brake safety circuit (16) which is connected between the brake supply circuit (12) and the brake control circuit (14), which brake safety circuit (16) comprises a first safety switch (S1) being connected in series with the brake coil (C) as well as a second safety switch (S2) which is connected in parallel to the brake coil (C), whereby the first and second safety switches (S1, S2) are configured to be controlled by an elevator safety circuit (20). This brake controller offers an improved cut-off safety in safety relevant situations.