VM 600 CMC16 200-530-025-014 振动计系列状态监测系统

VM 600 CMC16 200-530-025-014 振动计系列状态监测系统

CMC 16状态监测卡是振动计VM 600系列状态监测系统（CMS）的核心元件。该智能前端数据采集单元（DAU）与VM 600 CMS软件结合使用，通过带以太网控制器的VM 600系列CPU M模块或直接通过串行链路采集、分析结果并将结果传输至主机。输入是完全可编程的，可以接受表示速度、相位基准、振动（加速度、速度或位移）、动态压力、气隙转子和极廓线的信号、任何动态信号或任何准静态信号。

信号可以通过VM 600“原始总线”和“Tacho总线”从相邻的机械保护卡（MPC 4）输入，也可以通过IOC 16T上的螺纹端子连接器从外部输入。IOC 16T模块还提供信号调节和EMC保护，并允许将输入路由到CMC 16，CMC 16包括16个可编程跟踪抗混叠滤波器和模数转换器（ADC）。车载处理器处理采集、从时域到频域的转换（快速傅立叶变换）、频带提取、单位转换、极限检查以及与主机系统的通信的所有控制。


每个通道的10个可用频带可以包括RMS、峰值、峰值、真峰值、真峰峰值、Gap、Smax或基于同步或异步获取的频谱的任何可配置频带。加速度（g）、速度（英寸/秒、毫米/秒）和位移（密耳、微米）信号可满足要求，并可转换为任何标准显示。如果进行了配置，则仅在例外情况下（例如，仅当值的变化超过预定义阈值时）将数据发送到主机。还可以对值进行平均以进行平滑或降噪，同时使用另一个过程来计算长期平均值，以支持几年内的数据趋势。


当值超过6个可配置限制中的一个、超过变化率警报或偏离存储的基线时，会生成事件。然而，自适应监测技术也可以用于基于诸如速度和负载之类的机器参数来动态调整警报设置点。机器启动、停机和超速是通过对照配置的触发水平检查速度参考来检测的。


在瞬态模式下，可根据可配置的时间和速度间隔进行更高密度的测井。振动测量和记录在15转/分钟至30000转/分钟的速度范围内实现。CMC 16获取并处理以预定间隔或在警报检测时捕获的高分辨率数据（波形、光谱和轨道）。频谱分辨率、频率范围或阶跃范围、窗口类型、平均模式和平均数都是完全可配置的。还可以使用“示波器模式”在几分钟内触发对基于时间的数据的扩展捕获，因为这可以提供有价值的数据，尤其是在机器启动期间。 

VM 600 CMC16 200-530-025-014 振动计系列状态监测系统

The CMC 16 condition monitoring card is the core component of the vibration meter VM 600 series Condition monitoring system (CMS). The intelligent front-end data acquisition unit (DAU) is used in conjunction with the VM 600 CMS software to collect, analyze and transmit results to the host via the VM 600 series CPU M module with Ethernet controller or directly via a serial link. The input is fully programmable and can accept signals representing speed, phase reference, vibration (acceleration, velocity, or displacement), dynamic pressure, air-gap rotors, and polar profiles, any dynamic signal, or any quasi-static signal.

Signals can be input from the adjacent mechanical protection card (MPC 4) via the VM 600 "raw bus" and "Tacho bus", or externally via the threaded terminal connector on the IOC 16T. The IOC 16T module also provides signal conditioning and EMC protection, and allows the routing of inputs to the CMC 16, which includes 16 programmable tracking anti-aliasing filters and analog-to-digital converters (ADCs). The onboard processor handles acquisition, conversion from time domain to frequency domain (fast Fourier transform), band extraction, unit conversion, limit checking, and all control of communication with the host system.


The 10 available bands for each channel can include RMS, peak, peak, true peak, true peak, Gap, Smax, or any configurable band based on the spectrum acquired synchronously or asynchronously. Acceleration (g), velocity (inches/SEC, mm/SEC), and displacement (mil, micron) signals meet the requirements and can be converted to any standard display. If configured, data is sent to the host only in exceptional cases (for example, only when the change in value exceeds a predefined threshold). Values can also be averaged for smoothing or de-noising, while another process is used to calculate long-term averages to support data trends over several years.


An event is generated when the value exceeds one of the six configurable limits, exceeds the rate of change alert, or deviates from the stored baseline. However, adaptive monitoring techniques can also be used to dynamically adjust alarm setting points based on machine parameters such as speed and load. Machine start, stop, and overspeed are detected by a trigger level check speed reference against the configuration.


In transient mode, higher density logging can be performed at configurable time and speed intervals. Vibration measurement and recording is achieved in the speed range from 15 RPM to 30,000 RPM. CMC 16 acquires and processes high-resolution data (waveforms, spectra, and orbits) captured at predetermined intervals or during alarm detection. Spectral resolution, frequency range or step range, window type, average mode, and average are all fully configurable. It is also possible to use "oscilloscope mode" to trigger extended capture of time-based data within minutes, as this can provide valuable data, especially during machine startup.

VM 600 CMC16 200-530-025-014 振动计系列状态监测系统

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