Elevator variable frequency control system
The invention discloses an elevator variable frequency control system which comprises a main power supply, a variable frequency speed regulating and direct-current brake system, a drive motor, a control power supply, an instruction system, a light load automatic acceleration control system, a load d...
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| Hauptverfasser: | , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses an elevator variable frequency control system which comprises a main power supply, a variable frequency speed regulating and direct-current brake system, a drive motor, a control power supply, an instruction system, a light load automatic acceleration control system, a load detection system, a safety protection system and an electromagnetic brake system. The light load automatic acceleration control system is connected with the variable frequency speed regulating and direct-current brake system, the control power supply, the instruction system and the safety protection system. The load detection system sends load light-load signals to the instruction system and the safety protection system. The variable frequency speed regulating and direct-current brake system sends transducer failure signals to the safety protection system and sends band-type brake control signals of a variable frequency system to the electromagnetic brake system. The drive motor is connected with the electromagnetic |
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