Vibro-Meter I/O interface card – IOCR
I/O interface card – IOCR
Vibro-Meter IOCR / IOC4T series Input/Output Interface Card is a rack-mounted backend interface module designed for Meggitt’s VM600 machinery protection and condition monitoring systems.
Installed at the rear of standard 19-inch VM600 racks (such as ABE04x), the IOCR/IOC4T card operates in tandem with front-mounted processing cards (e.g., MPC4 or CPUR) to route sensor field signals, process analog/digital outputs, and provide onboard relay contacts for automated equipment protection
Product Introduction / Overview
Primary Role: Acts as the physical signal interface between field vibration sensors (proximity probes, accelerometers, velocity transducers) and VM600 processing modules.
Signal Conditioning: Receives raw dynamic vibration and speed signals, passing processed data to rear terminal strips for DCS/PLC integration.
System Protection: Features built-in surge protection, EMI/EMC suppression, and local relay outputs for system alert, danger, and sensor health status.
Hot-Swappable: Supports live rack insertion and removal during continuous plant operation.
Technical Table
| Parameter | Specification |
| Manufacturer | Meggitt / Vibro-Meter |
| System Family | VM600 Machinery Protection System (MPS) / Condition Monitoring System (CMS) |
| Dynamic Channel Inputs | 4 channels (Vibration/Dynamic Pressure/Proximity) |
| Tachometer Inputs | 2 speed/phase reference channels |
| Analog Outputs | 4 channels; jumper-configurable 0–10 V or 4–20 mA |
| Relay Outputs | 4 software-configurable relays (250 VAC / 5 A AC) |
| Open Collector Outputs | Up to 32 programmable channels (for RLC16 / IRC4 relay expansion) |
| Backplane Power Supply | +5 VDC, ±12 VDC supplied via VM600 rack backplane |
| Form Factor / Dimensions | 6U Eurocard rear module; approx. 163 × 38 × 58 mm (approx. 0.4 kg) |
Environmental Tolerance Conditions
Operating Temperature: -25°C to +65°C (-13°F to +149°F)
Storage Temperature: -40°C to +85°C (-40°F to +185°F)
Relative Humidity: 0% to 95% non-condensing
Vibration & Shock: Meets IEC 60068 standards for harsh industrial, power plant, and offshore machinery environments.
Electromagnetic Compatibility: Fully compliant with IEC/EN 61000-6-2 (Immunity) and IEC/EN 61000-6-4 (Emissions).
Operating Instructions
Rack Slot Alignment: Ensure the IOCR/IOC4T card is installed in the exact rear slot position directly corresponding to its front-panel companion card (e.g., MPC4 or CPUR).
Terminal Wiring: Connect sensor field cables (shielded twisted pair) to the screw-terminal blocks according to channel pinouts. Keep shield grounding strictly connected at one designated point to prevent ground loops.
Jumper Configuration: Set output jumpers on the card PCB prior to power-up for required analog signal formats (0–10 V voltage vs. 4–20 mA current).
Software Configuration: Use VM600 MPSx or VibroSight software to map alarm relay trip points, trip delays, and signal processing parameters.
Fault Diagnosis
No Analog Output Signal: Check onboard DAC jumper configuration, confirm power rail status from backplane, and verify front-card signal processing.
Channel Sensor OK Fault: Inspect field wiring terminal screws for loose connections, verify transducer power supply voltage, and check cable integrity.
Relay Non-Responsive: Verify software alarm configuration settings and ensure relay contact limits (250 VAC / 5 A max) have not been exceeded.
Signal Interference / Noise: Verify cable shield terminations at the rear terminal block and confirm ambient EMI sources are properly isolated.
Related Models of the Same Series
VM600 IOC4T (200-560-000-113): Standard I/O interface module for MPC4 machinery protection cards.
VM600 IOCR (200-560-101-017): Communications and control I/O card pair for CPUR rack controllers.
VM600 IOC8T: Input/Output module designed for AMC8 analog process monitoring cards.
VM600 IOCN / IOCNMk2: Communication interface card for CPUM/CPUMMk2 rack controller modules.
VM600 XIO16T: Input/Output module supporting 16 dynamic channels for XMx16 condition monitoring cards.
Storage Conditions
Environment: Store in a clean, dry, climate-controlled indoor space free from corrosive gases, solvent vapors, or direct sunlight.
Packaging: Keep inside anti-static ESD protective packaging until final installation.
Storage Temperature: Maintain within -40°C to +85°C.
Humidity: Keep relative humidity under 95% (non-condensing); use desiccant packs in humid environments.