CMC16 Vibration 200-530-SSS-HHh Condition Monitoring Card

Description:

 The CMC 16 Condition Monitoring Card is the central element in Vibro-Meter’s VM 600 series Condition Monitoring System (CMS).
 This intelligent front-end Data Acquisition Unit (DAU) is used in conjunction with the VM 600 CMS software to acquire, analyse and transmit results to a host computer via the VM 600 series CPU M  module with Ethernet controller or directly via serial links.
 The inputs are fully programmable and can accept signals representing speed, phase reference, vibration (acceleration, velocity or displacement), dynamic pressure, airgap rotor and pole profile, any dynamic signals or any quasi-static signals.  Signals can be input from adjacent Machinery Protection Cards (MPC 4) via the VM 600‘Raw Bus' and ‘Tacho Bus’ or externally via the screw terminal connectors on the IOC 16T.  The IOC 16T modules also afford signal conditioning and EMC protection and allow inputs to be routed to the CMC 16, which includes 16 programmable tracked anti-aliasing filters, and Analogue-to-Digital Converters (ADC). On-board processors handle all control of acquisition, conversion from time domain to frequency domain (Fast Fourier Transform), band extraction, unit conversion, limit checking, and communication with the host system.
 The 10 available bands per channels can include RMS, peak, peak-peak, true peak, true peak-peak values, Gap, Smax, or any configurable band based upon synchronous or asynchronously acquired spectra.  Acceleration (g), velocity (in/sec, mm/sec) and displacement (mil, micron) signals are catered for and can be converted for display
 to any standard.  If configured, data is sent to the host computer only on exception, for example, only if the change of value exceeds a pre-defined threshold. Values can also be averaged for smoothing or noise reduction while another process is used to calculate long term averages to support trending of data over several years.
 Events are generated when values exceed one of the 6 configurable limits, exceed rate-of-change alarms or deviate from stored baselines. However, adaptive monitoring techniques can also be employed to dynamically adjust alarm set points based upon machine parameters such as speed and load.
 Machine start-ups, shutdowns and overspeeds are detected from checks of speed reference against configured trigger levels. In Transient Mode, higher density logging is available based upon configurable time and speed intervals. Vibration measurement and logging is achieved in speed ranges from 15 rev/min to 30,000 rev/min. 
The CMC16 acquires and processes high-resolution data captured at scheduled intervals or on alarm detection (waveforms, spectra and orbits). Spectral resolution, frequency span or order span, window type, averaging mode and number of averages are fully configurable. The capacity also exists to trigger extended capture of time-based data over several minutes using an ‘Oscilloscope Mode’ as this can provide valuable data, particularly during machine start-up.
 For specific applications, contact your Vibro-Meter representative.