P0973EV

描述

（2）处理方法

1、起动时一升速就跳闸，这是过电流十分严重的现象，主要检查

①工作机械有没有卡住

②负载侧有没有短路，用兆欧表检查对地有没有短路

③变频器功率模块有没有损坏

④电动机的起动转矩过小，拖动系统转不起来

2、起动时不马上跳闸，而在运行过程中跳闸，主要检查

①升速时间设定太短，加长加速时间

②减速时间设定太短，加长减速时间

③转矩补偿（U/F比）设定太大，引起低频时空载电流过大

④电子热继电器整定不当，动作电流设定得太小，引起变频器误动作.、

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主营：世界知名品牌的PLC、DCS系统备件模块

①Allen-Bradley(美国AB)系列产品》

②Schneider(施耐德电气)系列产品》

③General electric(通用电气)系列产品》

④Westinghouse（美国西屋）系列产品》

⑤SIEMENS(西门子系列产品)》

⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。

⑦estinghouse（西屋）：OVATION系统、WDPF系统、MAX1000系统备件。

⑧Invensys Foxboro（福克斯波罗）：I/A Series系统，FBM（现场输入/输出模块）

顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数

据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余（TMR）

结构的zui现代化的容错控制器。

⑨Siemens(西门子)：Siemens MOORE，Siemens Simatic C1，Siemens数控系统等。

⑩Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模块等。

◆Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

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