Wärtsilä Valves Remote Control System

Wärtsilä Valve Remote Control System (VRCS) interfaces with the IAS (Integrated Automation System), with Mimic Diagram and with Emergency Shut Down (ESD) System.
E-ACT-VCU technology has been developed for both Cruise and Mercantile Vessels. This technology is suitable for controlling electro-hydraulic actuated valves systems.
This innovative technology and many years of successful experience enable us to provide turnkey solutions.

    Key Benefits
    • Redundant power supply
    • Redundant digital communication with the IAS
    • Hot-swappable cards
    • Compatible with any IAS
    • Easy configuration and maintenance
    • Self diagnostic
    • Cost effective
    • Full monitoring of valves and actuators
    • All data available to the automation system
    • Distributed architecture over main fire zones (MVZ)
    Key Elements

    E-ACT-MB Motherboard 

    E-ACT-MB Motherboard can hold up to 8 E-ACT-VCU cards, thus controlling up to 8 valves.
    Each E-ACT-MB is equipped with following connections: redundant power Supply 24Vdc, redundant communication bus RS 485 and 230Vac power supply for E-ACT power.

    E-ACT-VCU digital valve control cards

    Each E-ACT-VCU card controls one single valve and its feedbacks and interconnects with the IAS via communication cards or, optionally, directly through a Hardwire Interface.

    A number of LEDs on the Front Panel and others visible sideways, report the operating status of the card.

    Every card can be controlled locally via 3 simple push-buttons.

    • Local/Remote push-button - Is used for set in control the E-ACT-VCU. This push-button enables Close and Open push-buttons.
    • Close push-button - Is used for a full close command on E-ACT-VCU (if local/remote led is lit)
    • Open push-button - Is used for a full open command on E-ACT-VCU (if local/remote led is lit)


    The SMART-PMD is a portable device, for maintenance purposes only, developed to operate during maintenance on WAPSS systems without cables connections.
    The SMART-PMD will connect wireless to VRCS cabinets under bulkhead deck, and can control all valves in cabinets installed in the same MVZ.

    Figure - Detailed Valve Page
    Data Available

    Alarm List:

    • Two feedbacks
    • E-ACT Failure
    • Calibration Failure
    • No feedback
    • Closing fly-time
    • Opening fly-time
    • Feedback lost
    • Feedback over 100%
    • Feedback under 0%


    • 230 VAC missing
    • 24 VDC Main missing
    • 24 VDC Backup missing
    • ESD loop failure
    • Valve locked
    • DataBase Error
    • Program CRC error
    • ESD disabled

    Warning List:

    • Too many repositionings
    • Two commands from mimic
    • Two commands from ESD
    Technical Details

    Power Supply: Redundant 18-32 Vdc

    Consumption: 5 W

    Operating Temperature: 0-70 °C

    Serial Interface: Redundant RS485

    Digital output (Hardware Interface): Free Contact 150 mA 250 V

    Approvals: Marine Application

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    Contact us

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    Find your local Wärtsilä office here

    Contact our 24/7 customer support at +49 180 600 8553 for assistance with automation, navigation or communication equipment.
    You can also contact us by email at voyageservices@wartsila.com for general requests, or voyagespares@wartsila.com for spare parts requests.

    Please email us with the Equipment Serial Number or the name of the vessel. Equipment Serial Number is taken from the equipment nameplate and includes all letters and numbers as given on the equipment nameplate.
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