发明名称 |
DIAGNOSTIC SYSTEM FOR CRANES |
摘要 |
A hoist system for critical loads incorporates improved safety technology to monitor various possible fault conditions. For example, a command-not-operated function causes braking of the hoist when an encoder detects one of a group of conditions including a lack of load movement when a movement command is issued by the operating system, failure of encoder feedback, or failure of a control circuit. An uncommanded motion function also causes braking of the hoist when an encoder detects one of a group of conditions including load movement without a movement command issued by the operating system, or reverse directional movement of the load from a directional movement command input by the operating system. |
申请公布号 |
WO2005042393(A2) |
申请公布日期 |
2005.05.12 |
申请号 |
WO2004US33853 |
申请日期 |
2004.10.14 |
申请人 |
AMERICAN CRANE & EQUIPMENT CORPORATION;MALEK, GLENN;GRIESEMER, JEFFREY;NORHEIM, ODDVAR |
发明人 |
MALEK, GLENN;GRIESEMER, JEFFREY;NORHEIM, ODDVAR |
分类号 |
B66C;B66C15/06;B66D1/48;B66D1/54 |
主分类号 |
B66C |
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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