VM600-CMC16|Vibrometer VM 600 series condition monitoring system
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 sianal inputs are fully programmableand can accept signals represenfingacceleration,velocity and displacement(proximityl.amona others.On-poard multi-channel 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 filteringintegration or differentiation (if reguired),rectification (RMS,mean valve, true peak or truepeak-to-peak),ordertracking(amplitude andDhase)and measurement of the sensor-fargetgaD.
The speed (tachometer) inputs accept signalsfrom a varety of speed sensors,including systemsbased on proximity probes,magnetic pulse pickup sensors or TL 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 extemal informafion.
A digital output is available internally (on thecoresponding lOC4T input/output card) for eachalarm level.These alarm signals can drive fourlocal relays on the lOC4T card and /or can berouted using the yM600 rack’s Raw bus or OpenCollector(OC) bus to drive relays on opfionalrelay cards such as the RLCló orlRC4.
The processed dynamic (vibration) signals andspeed signals are available at the rear of the rack(on the front panel of the lOC4T) as analogoutput signals.Voltage-based (0 to 10 V) andcurrent-based(4 to 20 mA) signals are provided.
An LED indicator on the MPC4 front panelindicates whether a processing or hardware erolhas occurred.Six additional LEDs (one per inputchannel) indicate whether the OK System hasdetected a fault and whether an alamm hasoccurred on the channel.
The MPC4 card is available in three versions: a”standard” version,a”separate circuits” versionand a “safety”(SlL) version, all of which functionas a card pair using a corresponding lOC4T input,output card.
Different versions of the MPC4 card
The MPC4 card is available in different versionsincluding “standard”,“separate circuits” and“safety” (SlL) versions.In addition, some versionsare available with a conformal coating appliecto the circuitry of the card for additionalenvironmental protection against chemicalsdust,moisture and temperature extremes.
Both the ‘standard’version and the “safety”(SlL]versions of the MPC4 card are certified tolEC 61508 and lSO 13849, for use in functionalsafety contexts,such as SlL lin accordance withEC 61508 and PL c in accordance with
ISO 13849-1.
The “standard” MPC4 card is the original versionand supports all features and processing modesThe”standard” MPC4is intended for safetysystems using a VM600 rack with a limited rangeof cards,that is,”standard”MPC4/OC4T cardpairs and RLCl6 relay cards. lt has a VME.compatible slave interface so it is softwareconfigurable via VME when there is a CPUx cardacting as a rack controller in the VM600 rack. lt isalso software configurable via RS-232 (on the frontpanel of the card).
VM600 IOC4T |
VM600 RPS6U |
VM600-204-040-100-012 |
VM600-ABE040 |
VM600-ABE042 |
VM600-AMC8 |
VM600-ASPS |
VM600-CMC16 |
VM600-CPUM |