Description
Meggitt Vibro-Meter VM600 RLC16 Product Description
Product Overview
Meggitt Vibro-Meter VM600 RLC16 is a high-reliability relay expansion card designed for the VM600 Machinery Protection System (MPS) and Condition Monitoring System (CMS). Manufactured by Meggitt Sensing Systems under the Vibro-Meter product family, Meggitt Vibro-Meter VM600 RLC16 provides additional relay output capability for applications where the standard relay outputs available on IOC4T or IOC8T interface modules are insufficient. It is mainly used to expand alarm, trip, and status output functions in critical machinery monitoring installations.
The Meggitt Vibro-Meter VM600 RLC16 contains 16 independent SPDT (Single Pole Double Throw) relay channels with change-over contacts. The module receives relay control signals from VM600 MPC4 machinery protection cards and/or AMC8 monitoring cards through the system backplane, allowing operators to implement flexible alarm logic, shutdown interlocks, and external annunciation functions. The relay contacts are available through rear screw-terminal connectors, simplifying integration with plant control and protection systems.
As an important output expansion component of the VM600 architecture, Meggitt Vibro-Meter VM600 RLC16 improves the flexibility and reliability of machinery protection systems used for turbines, compressors, generators, pumps, and other high-value rotating equipment. Its modular rack installation design enables easy integration into existing VM600 ABE04x and ABE056 racks, supporting long-term operation in demanding industrial environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | VM600 RLC16 |
| Manufacturer | Meggitt Vibro-Meter |
| Product Series | VM600 Machinery Protection System |
| Product Type | Relay Expansion Card |
| Main Function | Additional alarm and trip relay outputs |
| Relay Quantity | 16 independent relays |
| Relay Type | SPDT change-over contacts |
| Contact Configuration | 3 terminals per relay |
| Relay Logic | Normally Energized (NE) / Normally De-Energized (NDE) selectable |
| Control Method | Software-controlled open collector relay drivers |
| Installation Location | Rear side of VM600 rack |
| Compatible Rack | VM600 ABE040 / ABE042 / ABE056 |
| Compatible Modules | MPC4, AMC8, IOC4T, IOC8T systems |
| Connection Interface | VM600 backplane connector |
| Terminal Type | Rear screw-terminal strip |
| Hot Swap Capability | Supported |
| Operating Temperature | Industrial VM600 rack environment |
| Weight | Approx. 0.3 kg |
Main Features and Advantages
High-density relay expansion capability:
The primary advantage of Meggitt Vibro-Meter VM600 RLC16 is its ability to provide 16 additional relay outputs within the VM600 machinery monitoring platform. When the four integrated relays available on IOC4T or IOC8T cards cannot satisfy complex protection requirements, Meggitt Vibro-Meter VM600 RLC16 provides an efficient expansion solution without requiring additional standalone relay hardware.
Flexible alarm and protection logic:
Meggitt Vibro-Meter VM600 RLC16 allows relay outputs to be controlled by protection signals generated from MPC4 and AMC8 cards. This enables implementation of multiple protection strategies, including vibration alarm indication, machine shutdown commands, emergency interlocks, and remote status notification. The relay configuration can be selected as normally energized or normally de-energized according to system safety requirements.

RLC16
Reliable industrial switching performance:
Designed for critical machinery protection applications, Meggitt Vibro-Meter VM600 RLC16 uses high-quality relay components with low contact resistance and high switching reliability. This ensures stable operation when controlling external alarms, annunciators, shutdown circuits, and plant protection equipment.
Seamless VM600 system integration:
Meggitt Vibro-Meter VM600 RLC16 is designed specifically for the VM600 rack-based architecture. It connects directly to the rack backplane and communicates with protection processing modules without additional external controllers, simplifying system design and reducing installation complexity.
Enhanced machinery protection availability:
In power plants and process industries, rapid response to abnormal machine conditions is essential. Meggitt Vibro-Meter VM600 RLC16 improves system availability by providing additional dedicated relay channels for critical alarms and protective actions.
Convenient maintenance and replacement:
The modular plug-in structure of Meggitt Vibro-Meter VM600 RLC16 allows fast installation, replacement, and troubleshooting. Existing VM600 users can maintain spare relay cards to minimize downtime during maintenance activities.
Application Areas
Meggitt Vibro-Meter VM600 RLC16 is widely used in industrial machinery protection systems requiring multiple relay outputs for alarm handling, equipment protection, and process integration. It is commonly installed in VM600 monitoring racks deployed in critical industrial facilities.
In power generation plants, Meggitt Vibro-Meter VM600 RLC16 is used with VM600 vibration monitoring systems protecting steam turbines, gas turbines, generators, and auxiliary equipment. The relay outputs can be connected to plant alarm systems, turbine protection logic, and emergency shutdown circuits.
In oil and gas facilities, Meggitt Vibro-Meter VM600 RLC16 supports protection systems for centrifugal compressors, pumps, expanders, and large motors. It enables reliable transmission of vibration-related alarms and trip signals to control systems, helping reduce the risk of catastrophic equipment failure.
In petrochemical and chemical processing plants, Meggitt Vibro-Meter VM600 RLC16 provides additional relay capacity for complex machinery monitoring applications. Multiple alarm levels and protection actions can be configured to match different operating conditions.
In marine propulsion, offshore platforms, mining, and heavy industrial applications, Meggitt Vibro-Meter VM600 RLC16 improves machinery safety by providing dependable relay outputs for rotating equipment protection systems. Its compact rack-mounted design makes it suitable for applications where cabinet space and reliability are important.
Related Products
- Meggitt Vibro-Meter VM600 MPC4: Machinery protection processing card that generates vibration alarms and controls VM600 RLC16 relay outputs.
- Meggitt Vibro-Meter VM600 AMC8: Analog monitoring card that can provide control signals for VM600 RLC16.
- Meggitt Vibro-Meter VM600 IOC4T: Input/output card with integrated relays; VM600 RLC16 expands its relay capability.
- Meggitt Vibro-Meter VM600 IOC8T: Interface module with additional signal processing functions compatible with relay expansion.
- Meggitt Vibro-Meter VM600 CPUM: Rack controller and communication module for VM600 systems.
- Meggitt Vibro-Meter VM600 IOCN: Communication interface module used in VM600 rack architectures.
- Meggitt Vibro-Meter VM600 ABE040 Rack: Standard rack platform supporting VM600 RLC16 installation.
- Meggitt Vibro-Meter VM600 RLC16Mk2: Updated second-generation relay module for VM600 Mk2 systems.
