发明名称 |
Door operator control system and method |
摘要 |
A control system for controlling the operation of an electric motor driven door or gate operator unit having a speed reducing gear drive mechanism and a brake unit for positive braking of the motor output shaft. A programmable microcontroller is operably connected to a motor drive circuit with interlock relays to energize the drive motor for rotation in opposite directions. The motor drive circuit is interconnected with a motor watchdog circuit to effect motor shutdown if the microcontroller malfunctions and a brake release circuit to prevent motor operation unless the brake is energized. The microcontroller is operable to store door mid-stop time delay values, braking rates, a door position limit overrun signal, a door cycle count, door reversals upon receiving an obstruction detector signal and error codes associated with door operator and control system malfunctions. The brake may be controlled on a variable duty cycle to provide smooth braking action in both directions of movement of the door.
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申请公布号 |
US6737823(B2) |
申请公布日期 |
2004.05.18 |
申请号 |
US20010017051 |
申请日期 |
2001.12.13 |
申请人 |
OVERHEAD DOOR CORPORATION |
发明人 |
REED BRETT A.;BALLI ROBERT E. |
分类号 |
E06B9/68;(IPC1-7):G05B5/00 |
主分类号 |
E06B9/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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