Description
KEY FEATURES AND BENEFITS • From the Vibro-Meter® product line • Continuously online machinery protection card • Real-time measurement and monitoring usingstate-of-the-art DSP techniques • 4 dynamic signal channels and 2 tachometer(speed) channels, all individuallyprogrammable • Programmable broad-band and narrow-bandfilters • Simultaneous amplitude and phase monitoringin order-tracking mode • Programmable Alert, Danger and OK set points • Adaptive Alert and Danger levels • Front-panel BNC connectors for easy analysis ofbuffered “raw” sensor signals • Front-panel LEDs indicate status and alarms KEY BENEFITS AND FEATURES (continued) • Integrated power supplies for sensors andsignal conditioners such as IEPEaccelerometers and proximity measurementsystems • Live insertion and removal of cards(hot-swappable) • Available in “standard”, “separate circuits”and “safety” (SIL) versions
The MPC4 machinery protection card is thecentral element in the VM600 series machineryprotection system (MPS), from Meggitt’sVibro-Meter® product line. This very versatile cardis capable of measuring and monitoring up tofour dynamic signal inputs and up to two speedinputs simultaneously. The dynamic signal inputs are fully programmableand can accept signals representingacceleration, velocity and displacement(proximity), among others. On-board multichannel processing allows measurement ofvarious physical parameters, including relativeand absolute vibration, Smax, eccentricity, thrustposition, absolute and differential housingexpansion, displacement and dynamic pressure. Digital processing includes digital filtering,integration or differentiation (if required),rectification (RMS, mean value, true peak or truepeak-to-peak), order tracking (amplitude andphase) and measurement of the sensor-targetgap. The speed (tachometer) inputs accept signalsfrom a variety of speed sensors, including systemsbased on proximity probes, magnetic pulse pickup sensors or TTL signals. Fractional tachometerratios are also supported.
The configuration can be expressed in metric orimperial units. Alert and Danger set points are fullyprogrammable, as are alarm time delay,hysteresis and latching. The Alert and Dangerlevels can also be adapted as a function of thespeed or any external information. A digital output is available internally (on thecorresponding IOC4T input/output card) for eachalarm level. These alarm signals can drive fourlocal relays on the IOC4T card and/or can berouted using the VM600 rack’s Raw bus or OpenCollector (OC) bus to drive relays on optionalrelay cards such as the RLC16 or IRC4. The processed dynamic (vibration) signals andspeed signals are available at the rear of the rack(on the front panel of the IOC4T) as analogoutput signals. Voltage-based (0 to 10 V) andcurrent-based (4 to 20 mA) signals are provided.The MPC4 performs a self-test and diagnosticroutine on power-up. In addition, the card’s builtin “OK system” continuously monitors the level ofsignals provided by a measurement chain (sensorand/or signal conditioner) and indicates anyproblem due to a broken transmission line, faultysensor or signal conditioner. An LED indicator on the MPC4 front panelindicates whether a processing or hardware errorhas occurred. Six additional LEDs (one per inputchannel) indicate whether the OK System hasdetected a fault and whether an alarm hasoccurred on the channel.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
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