VIBRO METER VM600 Modules: VM600 CPU M 200-595-100-032

Technical Dossier

Product Details And Specifications

VIBRO METER VM600 Series: Comprehensive Module Range and Technical Overview

The VIBRO-METER VM600 is a modular, rack-based machinery protection and condition monitoring system manufactured by Meggitt SA (formerly Vibro-Meter SA), headquartered in Fribourg, Switzerland. It is deployed across critical rotating machinery applications in petrochemical plants, nuclear power stations, offshore platforms, LNG terminals, and refineries worldwide. The VM600 system complies with API 670 (5th Edition) for machinery protection and is certified for use in safety-instrumented systems (SIS) environments. Its distributed architecture supports continuous monitoring of vibration, speed, position, temperature, and process variables across large turbomachinery trains including gas turbines, steam turbines, compressors, and pumps.

The Evolution of VM600 Architecture

The VM600 platform was introduced in the late 1990s as a successor to the VM500 series, addressing the need for higher channel density, digital communication, and integration with plant-level DCS and SCADA systems. The original VM600 rack accommodated up to six I/O module slots plus a dedicated CPU/communications slot, using a proprietary backplane bus for inter-module data exchange.

Early deployments used the MPC4 (Machinery Protection Card) and AMC8 (Analog Monitoring Card) as primary signal conditioning modules, paired with the CPU M 200-595-100-032 for rack-level processing and Modbus RTU/TCP communications. Subsequent hardware revisions introduced the RPS6 redundant power supply architecture and expanded the communications interface to support PROFIBUS DP and OPC-DA/UA protocols.

As the VM600 entered its mature lifecycle phase (post-2015), Meggitt introduced the eMx series as the next-generation platform. However, the VM600 remains the dominant installed base in brownfield facilities, and full spare parts support is maintained for all VM600 sub-assemblies. Compatibility between early-revision and late-revision VM600 modules requires verification of firmware version and backplane revision level before substitution.

VM600 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked VM600 series components. Each module is classified by functional category.

CPU & Communications Modules

• VM600 CPU M 200-595-100-032: Rack CPU with Modbus TCP/RTU and PROFIBUS DP communications interface — the primary rack controller for VM600 chassis.
• VM600 CPU M 200-595-100-031: Earlier CPU revision with Modbus RTU only; no Ethernet port; used in pre-2005 installations.
• VM600 CPU M 200-595-100-033: Latest CPU revision supporting OPC-UA and dual Ethernet with redundancy failover.

Machinery Protection Cards (MPC)

• VM600 MPC4 200-580-000-012: 4-channel machinery protection card; monitors radial vibration, axial position, and speed.
• VM600 MPC4E 200-580-000-014: Enhanced MPC4 with extended frequency range (0–20 kHz) for high-speed machinery.
• VM600 MPC4 200-580-000-011: Standard MPC4, earlier revision; compatible with VM600 racks up to backplane rev. B.

Analog Monitoring Cards (AMC)

• VM600 AMC8 200-581-000-021: 8-channel analog input card for process variable monitoring (4–20 mA, ±10 V).
• VM600 AMC8E 200-581-000-023: Extended AMC8 with HART protocol support for smart transmitter integration.

Digital I/O Modules

• VM600 IOC4T 200-582-000-041: 4-channel relay output card; configurable for latching or non-latching trip outputs.
• VM600 IOC4T 200-582-000-042: Revised IOC4T with enhanced contact rating (250 VAC / 5 A).
• VM600 DIO16 200-583-000-051: 16-channel digital I/O module; supports discrete alarm and interlock logic.

Power Supply Modules

• VM600 RPS6 200-590-000-061: Redundant power supply module; dual-input 24 VDC with automatic switchover.
• VM600 PSU 200-590-000-060: Single-input power supply; used in non-redundant configurations.

Rack & Chassis

• VM600 RACK6 200-600-000-001: 6-slot 19-inch rack chassis; standard VM600 mounting frame.
• VM600 RACK12 200-600-000-002: 12-slot extended rack chassis for high-channel-count installations.

Speed & Keyphasor Modules

• VM600 TDM 200-584-000-071: Tachometer/Keyphasor interface module; supports magnetic and proximity probe inputs.

Sourcing Hard-to-Find & Obsolete VM600 Parts

DriveKNMS maintains a dedicated inventory program for VM600 series components that have been discontinued or placed on extended lead time by Meggitt. The VM600 CPU M 200-595-100-031 and early-revision MPC4 cards (suffix -011 and -012) are no longer manufactured but remain in active service at numerous facilities operating under long-term maintenance contracts.

DriveKNMS sources these components through certified secondary-market channels, performs incoming inspection against original Meggitt technical specifications, and provides traceability documentation for each unit. For facilities requiring lifecycle extension beyond OEM support windows, DriveKNMS offers exchange programs, repair-and-return services, and consignment stocking agreements. All VM600 modules are stored in ESD-controlled environments with climate regulation to preserve backplane connector integrity and onboard battery-backed SRAM.

Quality Control for the VM600 Range

VM600 modules present specific test challenges due to their proprietary backplane communication protocol and multi-channel signal conditioning architecture. DriveKNMS applies the following verification procedures to all VM600 units prior to dispatch:

• Backplane Bus Integrity Test: Each module is seated in a reference VM600 rack and subjected to full backplane communication verification using a VM600 CPU M reference unit. Data exchange across all register maps is confirmed.
• Channel-Level Signal Injection: For MPC4 and AMC8 cards, calibrated signal sources are applied to each input channel. Output values are compared against Meggitt factory calibration tolerances (±0.5% full scale).
• Relay Output Verification: IOC4T relay contacts are cycled under rated load. Contact resistance is measured before and after cycling to confirm no degradation.
• Power Supply Load Test: RPS6 and PSU modules are tested under 100% rated load for a minimum of 30 minutes. Output voltage ripple and switchover time (for RPS6) are recorded.
• Firmware Version Audit: CPU M modules are connected via RS-232 service port. Firmware version is read and documented. Downgrade or upgrade is performed on request to match target rack configuration.
• Final Functional Test Report: A signed test report is issued with each unit, recording all measured parameters and the test equipment calibration certificates used.