SHINKAWA MP-2S – Dual-channel speed/phase conditioning for rotating machinery protection

The SHINKAWA MP-2S is widely used in turbomachinery panels as a compact speed/phase conditioning module. In many cases it sits between a magnetic pickup or proximity probe and your DCS/PLC or overspeed trip, delivering clean, reliable speed and phase signals with alarm handling. From my experience, plants choose the MP-2S when they want straightforward setup, stable signal tracking across a wide speed range, and robust alarm contacts without adding a full-blown rack monitor.

You might notice that it typically pairs well with gear-tooth wheels or keyphasor targets on compressors, steam or gas turbines, and large pumps. One thing I appreciate is the clean analog output and simple relay logic—it’s easy to integrate and even easier to maintain.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery time: 1 week for in‑stock; no more than one month at the latest
• Payment: 50% advance payment, full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Dual-channel speed/phase inputs – Accepts typical magnetic pickup or eddy-current proximity probe signals for flexible machine setups.
• Stable speed computation – Clean conditioning for tooth/marker signals helps reduce jitter at low rpm and during run-up.
• Analog and relay outputs – 4–20 mA or voltage output for monitoring, plus alarm and OK relays for basic protection logic.
• Simple integration – Screw terminals and common 24 VDC supply make cabinet wiring straightforward.
• Rugged design – Designed for industrial cabinets; typically holds up well against noise and vibration in control rooms.
• Clear status indication – Front indicators (typically RUN/ALM/OK) let technicians diagnose at a glance.

Technical Specifications

Note: The following reflects typical specifications for the SHINKAWA MP series speed/phase conditioner used with magnetic pickup or proximity probes. Exact values may vary by manufacturing revision.

Application Fields

• Turbomachinery – Speed and phase reference for steam/gas turbines, centrifugal compressors, and expanders.
• Power generation – Speed feedback for generators and turbine governors; overspeed trip interfacing.
• Oil & gas and petrochemical – Skid-mounted compressor panels where compact speed conditioning is preferred.
• Pulp & paper / Steel – Critical pumps and fans needing dependable speed feedback into the PLC or DCS.
• OEM machinery – Package machines requiring a reliable, field-proven speed/phase module without a full rack.

Advantages & Value

• Reliability – Shinkawa speed conditioning seems to handle electrical noise well, reducing nuisance trips.
• Compatibility – Works with common magnetic pickups and eddy-current probes, easing spares management.
• Cost efficiency – Delivers protection-grade I/O without the cost or footprint of a large monitoring rack.
• Integration support – Clear terminal labeling and typical 24 VDC power simplify retrofit projects.

A maintenance lead from a gas compression site told us the MP-series module “dropped right into the panel, calibrated quickly, and the relays behaved exactly as expected during overspeed tests.” That matches what we usually see during SAT/FAT witness runs.

Installation & Maintenance

• Cabinet environment – Install in a clean, dry control cabinet; allow ventilation around the unit and avoid mounting beside high-heat drives.
• Wiring – Use shielded twisted-pair for sensor inputs; ground at a single point to limit ground loops. Keep sensor wiring separate from power cabling.
• Power – Stable 24 VDC supply with proper grounding; include a dedicated circuit breaker or fuse.
• Sensor placement – Magnetic pickup gap and target material/teeth must follow probe recommendations for reliable pulses.
• Checks and calibration – Verify scaling (teeth per rev) and alarm setpoints during commissioning; re-check during planned outages.
• Cleaning – Periodic dust removal in the cabinet helps thermal performance; inspect terminal tightness annually.
• Firmware/config – If your revision supports configurable parameters, keep a record of setpoints and update only during controlled maintenance windows.

Quality & Certifications

• Certifications – Typically CE and RoHS compliant; manufacturer operates under ISO 9001 quality systems.
• Warranty – 365-day warranty.

If you’re upgrading an existing panel, share the sensor type (magnetic pickup or proximity probe), tooth count, and your required output (4–20 mA, relay logic). That speeds up configuration and FAT planning.