UAD149A00-0-11-4模拟量控制卡件
MPC4型机械保护卡
功能»来自Vibro Meter®产品线»持续在线机械保护卡»使用最先进的DSP技术进行实时测量和监控»4个动态信号输入和2个转速表（速度）输入，所有可单独编程»可编程宽带和窄带滤波器»顺序跟踪模式下的同时振幅和相位监测»可编程序警报，危险和正常设置点»自适应警报和危险级别»前面板BNC连接器，用于轻松分析原始信号»7个前面板LED显示状态和警报»集成电源，用于许多可控震源测量仪前端，包括ICP加速度计和接近系统»插卡和插卡，“独立电路”和“安全”（SIL）版本MPC4卡MPC4机械保护卡是美捷特传感系统的Vibro Meter®产品线VM600系列机械保护系统（MPS）的核心元件。这种多功能卡能够同时测量和监控多达四个动态信号输入和多达两个速度输入。动态信号输入完全可编程，可以接受代表加速度、速度和位移（接近度）等的信号。车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、Smax、偏心率、推力位置、绝对和差动外壳膨胀、位移和动态压力。
数字处理包括数字滤波
积分或微分（如果需要）、校正（RMS、平均值、真峰值或真峰值对峰值）、阶次跟踪（振幅和相位）和传感器目标间隙测量。速度（转速表）输入接受来自各种速度传感器的信号，包括基于接近探头的系统、磁脉冲拾取传感器或提供TTL信号。也支持分数转速比。校准可以公制或英制单位表示。报警和危险设定点完全可编程，报警延时、滞后和闭锁也是如此。警报和危险级别可以根据速度或任何外部信息进行调整。每个报警级别都有内部数字输出（在相应的IOC4T卡上）。这些报警信号可在VM600机架内的总线上路由，以驱动可选继电器卡（如IRC4和RLC16）上的继电器。处理后的动态（振动）信号和速度信号可在机架后部（IOC4T前面板上）作为模拟输出信号使用。提供基于电压（0至10 V）和基于电流（4至20 mA）的信号。MPC4在通电时执行自检和诊断例行程序。此外，该卡的内置“OK系统”持续监测传感器提供的信号水平，并指示由于传输线断裂、传感器或调节器故障而导致的任何问题。
Machinery protection card
Type MPC4
FEATURES » From the Vibro-Meter® product line » Continuously online machinery protection card » Real-time measurement and monitoring using state-of-the-art DSP techniques » 4 dynamic signal inputs and 2 tachometer (speed) inputs, all individually programmable » Programmable broad-band and narrow-band filters » Simultaneous amplitude and phase monitoring in order tracking mode » Programmable Alert, Danger and OK set points » Adaptive Alert and Danger levels » Front panel BNC connectors for easy analysis of raw signals » 7 front panel LEDs show status and alarms » Integrated power supply for many Vibro-Meter front-ends, including ICP accelerometers and proximity systems » Live insertion and removal of cards » Available in ‘standard’, ‘separate circuits’ and ‘safety’ (SIL) versions MPC4 card The MPC4 machinery protection card is the central element in the VM600 series machinery protection system (MPS), from Meggitt Sensing Systems’ Vibro-Meter® product line. This very versatile card is capable of measuring and monitoring up to four dynamic signal inputs and up to two speed inputs simultaneously. The dynamic signal inputs are fully programmable and can accept signals representing acceleration, velocity and displacement (proximity), among others. On-board multi-channel processing allows measurement of various physical parameters, including relative and absolute vibration, Smax, eccentricity, thrust position, absolute and differential housing expansion, displacement and dynamic pressure.
Digital processing includes digital filtering
integration or differentiation (if required), rectification (RMS, mean value, true peak or true peak-to-peak), order tracking (amplitude and phase) and measurement of the transducer-target gap. The speed (tachometer) inputs accept signals from a variety of speed sensors, including systems based on proximity probes, magnetic pulse pick-up sensors or providing TTL signals. Fractional tacho ratios are also supported. The calibration may be expressed in metric or imperial units. Alert and Danger set points are fully programmable, as are alarm time delay, hysteresis and latching. The Alert and Danger levels can be adapted as a function of the speed or any external information. A digital output is available internally (on the corresponding IOC4T card) for each alarm level. These alarm signals may be routed on a bus within the VM600 rack to drive relays on optional relay cards (such as the IRC4 and RLC16). The processed dynamic (vibration) signals and speed signals are available at the rear of the rack (on the front panel of the IOC4T) as analog output signals. Voltage-based (0 to 10 V) and current-based (4 to 20 mA) signals are provided. The MPC4 performs a self-test and diagnostic routine on power-up. In addition, the card’s built-in “OK System” continuously monitors the level of signals provided by the sensors and indicates any problem due to a broken transmission line, faulty transducer or conditioner.
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