公开(公告)号：US20180282123A1

公开(公告)日：2018-10-04

申请号：US16001052

申请日：2018-06-06

申请人： KONE Corporation

发明人： Pasi RAASSINA ,  Pekka HYTTI ,  Arto NAKARI ,  Ari KATTAINEN ,  Juhamatti NIKANDER ,  Olavi VAIRIO

IPC分类号： B66B5/02 ,  B66B1/30 ,  B66B5/00 ,  B66B11/04 ,  G05B19/048

摘要： A drive device of an elevator includes a frequency converter to be connected to a public AC supply network and an elevator motor. The frequency converter includes a network rectifier configured to be connected to the AC supply network, a motor bridge to be connected to the elevator motor and a DC intermediate circuit located between the network rectifier and the motor bridge. The motor bridge is controlled by a control circuit which feeds the motor bridge with control pulses to regulate the motor speed. The drive device further includes at least one drive prevention circuit connected between the control circuit and the motor bridge. The drive prevention circuit is configured to obtain a safety signal from an elevator safety circuit includes two separate safety input circuits each configured to be connected to the elevator safety circuit to receive a safety signal. Each of the safety input circuits is configured to interrupt the connection between the control circuit and the motor bridge in response to the safety signal status.

公开(公告)号：US20180086606A1

公开(公告)日：2018-03-29

申请号：US15653916

申请日：2017-07-19

申请人： Kone Corporation

发明人： Pasi RAASSINA ,  Risto JOKINEN ,  Olavi VAIRIO ,  Ari-Pekka LAHTINEN

IPC分类号： B66B25/00 ,  G01V8/12 ,  B66B27/00

CPC分类号： B66B25/00 ,  B66B1/34 ,  B66B27/00 ,  G01V8/12

摘要： The invention relates to a passenger conveyor, e.g. an elevator, comprising a conveyor motor being controlled by a conveyor control via a motor drive, the motor drive comprising a frequency converter with a rectifier bridge, an intermediate DC circuit and a converter bridge connected with the conveyor motor. The rectifier bridge is configured to be connected to mains via at least one relay, which relay is controlled by the conveyor control, the conveyor comprises a deep sleep mode, in which the frequency converter as well as at least a major part of conveyor control is switched off,in which conveyor the intermediate DC circuit forms the power supply for the conveyor control. During the activation of the deep sleep mode the conveyor control is configured to open the relay, whereby at least one signal circuit of the conveyor is configured to remain powered at least during the deep sleep mode. The conveyor comprises a wake-up circuit which is connected to the signal circuit and which is configured to be permanently powered at least during the deep sleep mode, which wake-up circuit is configured to close the relay dependent on a signal received from the signal circuit.