9905-880 超速跳闸设备 具有声音和可见警报系统 WOODWARD

【产品详情】

伍德沃德 9905-880 ProTech 203 超速跳闸设备，通过三个 MPU 感应原动机速度。具有声音和可见警报系统。

这种超速保护系统是伍德沃德ProTech 203系列的一部分。它是 220 Vac 版本（每个速度传感单元一个电源），是可用的几种断电跳闸版本之一。9905-880 型的组件位于单个外壳中，如果使用可选的不锈钢轮毂，则符合 NEMA 4X 标准。

9905-880 型号具有 100 Hz 至 32 kHz 的速度感应频率范围。速度每 5 毫秒通过与每个 ProTech 203 9905-880 速度传感单元接口的磁性拾音器 （MPU） 采样一次。整个系统的最大总响应时间为 40 ms。该系统的跳变点频率范围为250 Hz至25 kHz。

当满足超速条件时，跳闸继电器被激活 。如果三个单元中只有一个满足条件，则只有该单元跳闸，系统的其余部分保持联机状态。

型号 9905-880 的功能包括：

MPU 故障指示灯

中央处理器故障指示器

热更换

远程复位

报警输出

附加功能和 9905-880 规范可在手册 85191（版本 B）中找到。

型号 9905-880 在正常操作期间应保持监控模式，尽管它将运行监控模式或程序模式。通过存储模块上的钥匙开关限制对两种模式之间的开关的访问。

9905-880 超速跳闸设备 具有声音和可见警报系统 WOODWARD

【英文介绍】

The Woodward 9905-880 ProTech 203 overspeed trip device senses prime mover speed through three MPUs. Audible and visible alarm system.

This overspeed protection system is part of the Woodward ProTech 203 series. It is the 220 Vac version (one power supply per speed sensing unit) and is one of several power-off trip versions available. The components of the Model 9905-880 are located in a single housing and are NEMA 4X compliant if optional stainless steel wheels are used.

The 9905-880 model has a speed sensing frequency range of 100 Hz to 32 kHz. The speed is sampled every 5 milliseconds by a magnetic pickup (MPU) that interfaces with each ProTech 203 9905-880 speed sensing unit. The maximum total response time for the entire system is 40 ms. The system has a jump point frequency range of 250 Hz to 25 kHz.

When the overspeed condition is met, the trip relay is activated. If only one of the three cells meets the condition, only that cell trips and the rest of the system stays online.

Model 9905-880 features include:

MPU fault indicator

CPU failure indicator

Hot change

Remote reset

Alarm output

Additional features and the 9905-880 specification can be found in manual 85191 (version B).

Model 9905-880 should remain in monitor mode during normal operation, although it will run either monitor mode or program mode. Access to the switch between the two modes is restricted by the key switch on the storage module.

9905-880 超速跳闸设备 具有声音和可见警报系统 WOODWARD

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