Vibro-Meter VM600 MPC4 Mechanical Protection Card Description

Description

MPC4 Card

The MPC4 Machine Protection Card is the centerpiece of the VM600 series of Machine

Protection Systems (MPS) from Meggitt's Vibrometer® product line.

The card is extremely versatile, capable of measuring and monitoring up to four dynamic signal inputs and two velocity inputs simultaneously.

The dynamic signal inputs are fully programmable and can accept the following signals

acceleration, velocity and displacement (proximity) signals.

On-board multi-channel processing allows measurement of a wide range of physical

parameters including relative and absolute vibration, Smax, eccentricity, thrust position,

absolute and differential case expansion, displacement and dynamic pressure.

Digital processing includes digital filtering, integration or differentiation (if required),

rectification (RMS, average, true peak, or true peak-to-peak), order tracking (amplitude and phase),

and measurement of transducer-to-target clearance.

The speed (tachometer) input accepts signals from a variety of speed sensors,

including systems based on proximity probes, magnetic pulse pickup sensors, or TTL signals.

Fractional tachometer ratios are also supported.

Configurations can be expressed in metric or imperial units.

Alarm and hazard setpoints are fully programmable Alarm time delay, hysteresis and latching,

hysteresis and latching. Alarm and hazard levels can also be adjusted based on speed or any external information.

The alarm and hazard levels can also be adjusted based on speed or any external information.

Each alarm level has an internal digital output (on the appropriate IOC4T I/O card).

These alarm signals can drive the four local relays on the IOC4T card,

and/or relays on optional relay cards such as the RLC16 or IRC4 via the VM600 rack's raw bus or open collector (OC) bus.