FIELD: transport.
SUBSTANCE: invention relates to lift-and-carry equipment and can be used in elevator control system. Device contains elevator well safety relay (3), elevator doors state control unit (2n) with corresponding control relay (6), switches of elevator well door leaves, elevator well door leaves switches state control unit with corresponding control relays according to number elevator well floors. Results of any of mentioned control types are generated on the first and the second control outputs of the device. Their combination is analysed by well safety control device.
EFFECT: control of door switches state on each floor of elevator well, control of switching contacts state, control relays with simultaneous control of circuit electronic components having increased probability of failure, higher safety of elevator operation.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ELEVATOR SHAFT SECURITY APPARATUS | 2013 |
|
RU2570917C2 |
| LIFT SAFETY DEVICE | 1992 |
|
RU2006438C1 |
| DEVICE FOR AUTOMATIC CONTROL OF LIFT CABIN DRIVE SWITCHING | 0 |
|
SU1765090A1 |
| LIFTING-AND-TRANSPORTATION MACHINE CONTROL SYSTEM | 1996 |
|
RU2112735C1 |
| RELAY-CONTACT LIFT PROTECTION SYSTEM (VERSIONS) | 2000 |
|
RU2196095C2 |
| DEVICE FOR PROVIDING LIFT SAFETY | 0 |
|
SU1184777A1 |
| DEVICE FOR SAFE OPERATION OF LIFT | 0 |
|
SU1364588A1 |
| LIFT SAFETY DEVICE | 0 |
|
SU1666436A1 |
| DEVICE FOR SAFETY OPERATION OF LIFT | 0 |
|
SU1661126A1 |
| DEVICE TO PROVIDE SAFE OPERATION OF LIFT | 1997 |
|
RU2148009C1 |
