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Shinkawa VM-3D2 axial displacement (thrust) monitoring module
| Brand: Shinkawa VM-3 series |
| Item NO: VM-3D2 |
| Effect: Collecting eddy current approaching probe signals |
| Condition: In stock, brand new/Used |
| Warranty: 365 days |
| Payment:T/T 50% deposit, 50% balance |
| www.szcxdcs.com |
+86 15359298293
Shinkawa VM-3D2 axial displacement (thrust) monitoring module
VM-3D2 is a TSI axial displacement (thrust) monitoring module from the Shinkawa VM-3 series in Japan. It belongs to the early rack mounted card insertion monitoring unit and is compatible with the VM-3 series standard chassis. It receives eddy current probe signals to measure the axial thrust displacement of the rotor.
Function: VM-3D2 collects eddy current approaching probe signals and monitors real-time axial displacement (thrust shaft displacement) of the rotating unit rotor; Complete signal conditioning and range conversion; Provide warning and danger level relay alarm contacts, and output interlocking signals to the ETS protection system when exceeding the limit; Output 4-20mA analog signal to DCS to display axial displacement value; VM-3D2 is equipped with probe breakage fault detection, providing key measurement basis for thrust protection of turbine and compressor bearing shells, and preventing equipment accidents caused by thrust bearing burnout.
————————Shenzhen Changxin Automation Equipment Co Ltd -————————
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Shinkawa VM-3D2 axial displacement (thrust) monitoring module
Parameter Specifications
| Parameter | Value |
|---|---|
| Model | VM‑3D2 |
| Product family | VM‑3 Series TSI monitoring system |
| Module type | Axial thrust / displacement monitor module |
| Sensor input | Eddy‑current proximity probe |
| Measuring range | ±2 mm (standard) |
| Accuracy | ±1% full scale |
| Analog output | 4‑20 mA |
| Dynamic signal output | BNC interface |
| Relay output | Alert / Danger dry contact relay |
| Contact rating | 250 V AC / 30 V DC, 2 A |
| Sensor fault detection | Probe break / short‑circuit detection |
| Power supply | 24 V DC ±10% |
| Mounting | Plug‑in card for VM‑3 series chassis |
| Operating temperature range | 0 ~ +60 ℃ |
| Storage temperature range | ‑20 ~ +70 ℃ |
| Relative humidity | 5‑95% non‑condensing |
| Weight | 1.1 kg |
| Origin | Japan |
Product Recommendation:
Shinkawa VM-701B VM-7 Series Vibration/Displacement Monitoring Module
Shinkawa VM-742B1-5 upper network communication module
Product features
- Single channel axial displacement (thrust) measurement, specifically designed for monitoring rotor axial displacement, supports standard eddy current probes, hardware adjustable range, and adapts to the thrust stroke requirements of different units.
- Equipped with sensor disconnection and short circuit fault detection, triggering module fault alarm when probe circuit is abnormal, to avoid invalid measurement.
- Two level alarm output: warning Alert, hazard Danger relay dry contact, can be connected to the unit ETS trip circuit to achieve thrust over limit interlock protection
- 4-20mA standard analog output, equipped with BNC dynamic signal interface, can be externally connected to read the original displacement waveform for easy maintenance and fault analysis.
- Plug in rack installation, installed on VM-3 series chassis; The panel status indicator light intuitively displays the measurement, alarm, and sensor fault status.
- Hardware potentiometers complete zero and range calibration without software configuration; It belongs to the early analog TSI module and does not have a digital communication bus.
- Old generation TSI hardware, no longer selected for new projects, only used for in-situ replacement of existing VM-3 system spare parts.
Usage Scenarios
- TSI system for steam turbine units in thermal and gas-fired power plants, rotor axial thrust displacement monitoring, and thrust tile protection.
- Petrochemical turbine centrifugal compressor unit, steam driven equipment shaft displacement protection monitoring.
- Large rotating equipment in oil refining and coal chemical plants collects axial displacement signals to participate in unit interlocking logic.
- Replacement of old equipment spare parts for stock Shinkawa VM-3 series chassis, direct replacement of damaged VM-3D2, reuse of original probes and wiring.
- Unit maintenance and debugging, using BNC interface external testing instruments to read the original displacement waveform and analyze the rotor thrust status.
