Product Overview
The Fisher LCP100 is a local control panel designed for use in conjunction with the Fisher FIELDVUE DVC6200 SIS digital valve controller. This panel provides a means for operators to manually open, close, or perform partial stroke tests on safety shutdown valves (SIS). The Fisher LCP100 enhances the safety and operational capabilities of automated safety valves by allowing for direct manual intervention and testing. It features three protected pushbuttons for OPEN, CLOSE, and TEST functions, along with three indicator lights that visually display the valve’s status: OPEN, CLOSED, and READY-TO-RESET (after a safety trip). The rugged enclosure of the Fisher LCP100, with encapsulated electronics, pushbuttons, and lights, is built to withstand harsh industrial environments. This local control panel provides a critical interface for ensuring the reliable and safe operation of safety shutdown valves, allowing for both manual override and online diagnostic testing. The Fisher LCP100 can be loop-powered or independently powered by a 24 VDC source, offering installation flexibility.
Technical Specifications
Main Features and Advantages
The Fisher LCP100 local control panel offers several key features and advantages for managing safety shutdown valves:
Reliability: The Fisher LCP100 features a rugged filled polyester enclosure and encapsulated electronics, pushbuttons, and lights, ensuring durability and reliable operation in demanding industrial environments.
Manual Override: The panel provides dedicated pushbuttons for manually opening and closing the safety valve, allowing for direct operator intervention when needed, regardless of the control signal from the logic solver.
Partial Stroke Testing: The Fisher LCP100 includes a dedicated button to initiate an online partial stroke test. This feature, in conjunction with the DVC6200 SIS, helps improve the diagnostic coverage factor of the safety instrumented system without requiring a full shutdown.
Manual Reset: After a safety demand (valve trip), the Fisher LCP100 provides a manual reset function. The green OPEN button will only command the valve to its normal position after the control current is restored, giving the user control over when the valve returns to service.
Lockable Pushbutton Covers: Each of the three pushbuttons on the Fisher LCP100 can be locked using optional covers. This prevents unauthorized access and accidental operation of the safety valve, enhancing safety and security.
Visual Indication: The three indicator lights on the Fisher LCP100 provide clear visual feedback on the valve’s current state (OPEN, CLOSED) and whether it is latched in the trip position and ready for reset (READY-TO-RESET). The red CLOSED light also flashes if the valve is not in the fail-safe state when the loop current is tripped.
Installation Flexibility: The Fisher LCP100 can be powered either by the same loop as the DVC6200 SIS or by an independent 24 VDC source, offering flexibility in wiring and power options depending on the application requirements.
Safety Certification: The Fisher LCP100 contributes to the overall safety integrity of the safety instrumented system and often carries relevant safety certifications (refer to specific product documentation for details).
Application Field
The Fisher LCP100 local control panel is primarily used in safety instrumented systems (SIS) across various process industries that rely on safety shutdown valves to protect personnel, equipment, and the environment. These industries include:
Oil and Gas: Onshore and offshore platforms, refineries, and pipelines utilize the Fisher LCP100 for local manual control and testing of critical safety valves.
Chemical Processing: Chemical plants employ the Fisher LCP100 for managing emergency shutdown valves in processes involving hazardous materials.
Power Generation: In power plants, the Fisher LCP100 can be used with safety valves in boiler systems and other critical areas.
Pharmaceutical: Drug manufacturing facilities utilize safety shutdown systems with local control panels like the Fisher LCP100 to ensure process safety.
