200-510-111-035 MPC4 VM600系列机械保护系统

MPC4机械保护卡是VM600系列机械保护系统(MPS)的核心元件，来自梅吉特的振动仪表产品线。这种非常通用的卡片能够测量和监控多达四个动态信号输入和多达两个速度

同时输入。

动态信号输入是完全可编程的，可以接受表示加速度、速度和位移(接近)等的信号。机载多通道处理允许测量各种物理参数，包括相对和绝对振动，最大偏心，推力位置，绝对和差动外壳膨胀，位移和动压力

数字处理包括数字滤波、积分或微分(如果需要)、整流(有效值、平均值、真峰或真峰对峰)、阶数跟踪(幅度和相位)和传感器测量。

速度(转速表)输入接收来自各种速度传感器的信号，包括基于接近探头，磁脉冲拾取传感器或信号传感器的系统。分数转速计也支持。

结构可以用公制或英制单位表示。警报和危险设定值是完全可编程的，因为报警时间延迟。迟滞和锁存。警报和危险等级也可以根据速度或任何外部信息进行调整。

每个警报级别都有一个数字输出(在相应的loc4input /output卡上)。这些报警信号可以驱动lOC4T卡上的四个本地继电器和/或可以使用VM600机架的Raw总线或OpenCollector (OC)总线进行路由，以驱动RLCl6或IRC4等可选继电器卡上的继电器。

经过处理的动态(振动)信号和速度信号可在机架后方(在lOC4T的前面板上)作为模拟输出信号。提供基于电压(0至10 v)和基于电流(4至20 mA)的信号。

MPC4在上电时执行自检和诊断程序。此外，该卡内置的“OK系统”持续监测由测量链(senso!和/或信号调节器)，并指示由于传输线断裂、传感器故障或信号调节器引起的任何问题。

200-510-111-035 MPC4 VM600系列机械保护系统

The MPC4 Mechanical protection card is the core component of the VM600 series of Mechanical Protection systems (MPS) from Megget's vibration instrumentation product line. This very versatile card is capable of measuring and monitoring up to four dynamic signal inputs and up to two speeds

Enter simultaneously.

The dynamic signal input is fully programmable and can accept signals representing acceleration, speed, and displacement (approach), among others. On-board multi-channel processing allows measurement of a variety of physical parameters, including relative and absolute vibration, maximum eccentricity, thrust position, absolute and differential housing expansion, displacement, and dynamic pressure

Digital processing includes digital filtering, integration or differentiation (if desired), rectification (RMS, mean, true peaks or true peak-to-peak), order tracking (amplitude and phase), and sensor measurement.

Speed (tachometer) inputs receive signals from a variety of speed sensors, including systems based on proximity probes, magnetic pulse pickup sensors, or signal sensors. Fractional tachometers are also supported.

The structure can be expressed in metric or imperial units. Alarm and hazard setpoints are fully programmable due to alarm time delay. Hysteresis and latching. Alarm and danger levels can also be adjusted based on speed or any external information.

Each alert level has a digital output (on the corresponding loc4input /output card). These alarm signals can drive four local relays on the lOC4T card and/or can be routed using the VM600 rack's Raw bus or OpenCollector (OC) bus to drive relays on optional relay cards such as RLCl6 or IRC4.

The processed dynamic (vibration) and speed signals can be used as analog output signals at the rear of the rack (on the front panel of the lOC4T). Voltage based (0 to 10 v) and current based (4 to 20 mA) signals are provided.

The MPC4 performs a self-test and diagnostic procedure when powered on. In addition, the card's built-in "OK system" is continuously monitored by the measurement chain (senso! And/or signal regulator) and indicate any problems due to a broken transmission line, sensor failure, or signal regulator.