Product Short Description
Product Series
VIBRO-METER MPC4 Modular Multi-Channel Machinery Safety Monitoring Platform
Product Brief
Factory pre-configured 4-channel universal protection controller variant optimized for high-speed steam turbine and generator bearing monitoring; equipped with extended high-frequency vibration measurement bandwidth, full SIL 2 safety relay set and dual Ethernet Modbus TCP communication interfaces.
Description
Technical Specifications
- Measurement Channel Quantity: 4 universal multi-type sensor input channels
- Extended Vibration Bandwidth: 0.5 Hz to 20 kHz high-frequency bearing fault signal capture
- Supported Transducers: Eddy current shaft probes, high-frequency accelerometers, Pt100 RTD temperature sensors, magnetic tachometer pickups
- Safety Relay Configuration: 8 SIL 2 certified isolated trip relay contact outputs
- Communication Interfaces: Dual redundant Ethernet Modbus TCP + RS485 Modbus RTU
- Power Supply Input: Dual redundant DC 24 V with reverse polarity and surge protection
- Analog Retransmission Outputs: 4 x isolated 4–20 mA analog signal outputs
- Operating Temperature Range: 0 °C to +65 °C
- Rack Form Factor: 4U 19-inch plug-in rack module
Functional Features
- Extended 20 kHz vibration bandwidth for early detection of high-frequency rolling element bearing fault signatures
- Dual redundant Ethernet communication ports eliminating single communication link failure risk
- Full set of SIL 2 safety certified hardwired shutdown relays independent of digital bus communication
- High-capacity onboard data logging storage for long-duration vibration waveform snapshot recording
- Per-channel independent warning and emergency shutdown threshold logic with configurable time delay filtering
- Built-in sensor wire break and short-circuit fault diagnostic with dedicated alarm state indication
Structural Characteristics
- Enclosure: EMI-shielded extruded aluminum alloy housing with passive convection cooling
- Internal circuit isolation: Full galvanic separation between sensor analog inputs, power supply and communication subsystems
- Front panel: High-resolution color touch LCD display for live value monitoring and system configuration
- Backplane interface: Proprietary MPC series rack bus connector for multi-module rack synchronization
Working Principle
High-bandwidth analog front-end amplifies and filters raw high-frequency vibration sensor signals; dedicated digital signal processors extract bearing fault frequency components and compute standard vibration magnitude metrics; measured parameters are cross-compared against safety threshold limits to activate SIL 2 rated trip relays, while measurement data streams are transmitted simultaneously over dual redundant Ethernet communication links to plant DCS/SCADA control systems.
Advantage Highlights
- Extended 20 kHz bandwidth enables predictive early bearing fault detection unavailable on standard MPC4 variants
- Dual redundant Ethernet communication provides fully fault-tolerant digital data transmission
- Complete 8 SIL 2 safety relays meet full turbomachinery emergency shutdown safety loop requirements
- Passive fanless cooling eliminates moving part wear and scheduled fan replacement maintenance
- Unified universal channel design supports mixed vibration, temperature and speed sensor installation without hardware modification
Applicable Industries
Large utility steam power turbine generator sets, industrial high-speed turbo-generators, combined cycle power plant gas turbine bearing monitoring, large synchronous generator rotor condition surveillance
Installation Requirements
- Install module in dedicated climate-controlled 19-inch industrial control rack with unobstructed vertical ventilation space
- Separate all vibration sensor signal cables from high-voltage power wiring with minimum 35 cm physical separation
- Hardwire SIL 2 safety trip relay contacts directly into machinery emergency shutdown safety interlock circuit
- Deploy dual independent Ethernet network cabling to two separate plant control network switches for communication redundancy
Operation Precautions
- Perform complete channel threshold and relay trip functional testing every three calendar months
- Do not exceed cabinet ambient operating temperature upper limit of +65 °C during continuous operation
- Only utilize VIBRO-METER factory calibrated shielded sensor cable assemblies for all transducer connections
- Download and archive onboard vibration event log data monthly for long-term machinery health trending analysis
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