Description
Fisher LCP100 | Local Control Panel for Safety Valves
Product Introduction
When a safety shutdown valve needs local operator access, the Fisher LCP100 provides a dedicated interface without requiring the operator to work directly at the valve-mounted digital controller. It is designed to work with Fisher FIELDVUE SIS digital valve controllers, allowing personnel to manually open or close the valve, initiate testing, and reset the system when permitted by the configured safety logic.
The Fisher LCP100 includes three protected pushbuttons and three status lights. Emerson documents both external 24 VDC and loop-powered configurations, along with an IP66 enclosure intended for industrial environments. The panel is a safety-system accessory—not a standalone safety logic solver or valve actuator.
For replacement procurement, confirm the connected DVC model, firmware compatibility, wiring method, power-selector setting, and hazardous-area approval requirements. A panel that powers up is not necessarily validated for the installed SIS application.
LCP100
Key Technical Specifications
- Model: LCP100
- OEM: Fisher / Emerson
- Product Family: FIELDVUE valve accessories
- Function: Local control and testing interface for safety shutdown valves
- Supported Controller: DVC6200 SIS with firmware revision 3 or later
- Additional Documented Compatibility: DVC6000 SIS with firmware revision 7 or later
- External Power: 24 VDC ±10%
- External Power Consumption: 50 mA maximum continuous current; 100 mA maximum inrush
- Loop-Powered Operation: 8–20 mA for the LCP100 and DVC6200 SIS combined
- Maximum Cable Capacitance: 100,000 pF between the LCP100 and DVC6200 SIS
- Typical Cable Distance: 314 m (1,030 ft) using 18 AWG shielded instrumentation cable, subject to cable-capacitance limits
- Wiring Range: 14–26 AWG
- Conduit Entry: 3/4 NPT or M20, depending on configuration
- Enclosure Protection: IP66
- Ambient Temperature: −40 to +65°C
- Housing Material: Filled polyester
- Approximate Dimensions: 253.1 × 109.5 × 127.8 mm (10.0 × 4.3 × 5.0 in.)
- Approximate Weight: 2.2 kg (4.9 lb)
- Operator Interface: Three protected pushbuttons and three status lights
Specifications are from Fisher/Emerson product documentation. Confirm the actual unit’s nameplate, wiring arrangement, and approval markings before installation.
Global Sourcing & Live-Test SOP
1. Inbound Verification
- Photograph the complete nameplate and enclosure.
- Confirm the model marking and record serial number and available revision information.
- Inspect the housing, cover, pushbutton guards, indicator lenses, conduit entries, and mounting points.
- Check for cracks, impact damage, corrosion, missing screws, or evidence of water ingress.
- Photograph the internal terminal area only if inspection is authorized and can be performed safely.
- Record the seller’s stated condition and any included documentation.
2. Configuration and Compatibility Review
- Confirm the connected FIELDVUE controller model: DVC6200 SIS or DVC6000 SIS.
- Verify the controller firmware requirement against Emerson documentation.
- Confirm whether the intended setup uses external 24 VDC or loop power.
- Check the power-selector switch position before energizing.
- Verify the wiring diagram, polarity, cable capacitance, and applicable hazardous-area installation requirements.
- Confirm that the unit’s approval markings match the intended installation area.
3. Controlled Functional Testing
Testing must follow Emerson’s instructions and the site’s approved SIS maintenance procedure.
- Verify the supply and wiring configuration before applying power.
- Confirm startup behavior and status-light operation.
- Check the open, close, and test pushbuttons using an approved test setup.
- Verify manual reset behavior under the proper controller conditions.
- Confirm that the connected DVC recognizes and responds to the commands.
- Record any abnormal indication, intermittent response, or fault message.
Do not initiate valve movement or a partial-stroke test on an operating process without the required authorization and safeguards.
4. Extended Run and Diagnostics
Where an approved test setup is available, conduct an extended functional test with a compatible controller.
Record:
- Test date and duration
- serial number
- DVC model and firmware revision
- Power source and selector-switch setting
- Wiring configuration
- Pushbutton and indicator results
- Diagnostic messages or abnormal behavior
- Functions not tested
A standalone power-up is not proof of correct SIS operation or validated safety performance.
5. Final Preparation
- Preserve the nameplate and approval markings.
- Photograph the complete enclosure and terminal area.
- Record all test results and known limitations.
- Protect the enclosure and pushbuttons against impact during shipment.
- Use suitable packaging to prevent moisture exposure and connector damage.
- Do not represent the unit as safety-certified, refurbished, or fully tested unless the supporting records establish that condition.
Field Engineer’s Pitfall Guide
❗ Firmware compatibility is part of the replacement check
Emerson documents compatibility with DVC6200 SIS firmware revision 3 or later and DVC6000 SIS firmware revision 7 or later. Confirm the installed controller and firmware before commissioning the .
❗ The power-selector switch must match the wiring
The supports external 24 VDC and loop-powered configurations. An incorrect selector setting or wiring arrangement can prevent correct operation or affect the connected loop. Follow the applicable Emerson wiring diagram rather than relying on the previous installation’s appearance.
❗ Do not treat a successful button test as SIS validation
The is part of a larger safety shutdown valve arrangement. Functional testing of the panel alone does not establish correct valve response, safety logic, proof-test coverage, or overall SIS performance. Follow the site’s approved safety-system validation procedure.
Intent-Driven FAQ
What is the Fisher ?
The Fisher is a local control panel used with FIELDVUE SIS digital valve controllers to provide local valve operation, reset, and testing functions.
Which controllers are compatible with the ?
Emerson documents use with DVC6200 SIS firmware revision 3 or later and DVC6000 SIS firmware revision 7 or later. Verify the exact controller and firmware before installation.
Does the require a separate 24 VDC power supply?
Not in every configuration. It supports switch-selectable external 24 VDC power or loop-powered operation. The correct method depends on the system wiring and available loop current.
What functions does the provide?
It provides local valve open, close, partial-stroke-test, and manual-reset functions, along with visual status indication.
Is the suitable for hazardous areas?
The has documented hazardous-area approvals, but the exact approval and wiring method must match the nameplate and installation requirements. Do not assume every unit or wiring configuration is approved for every hazardous location.
Is the Fisher hot-swappable?
Do not assume it is. Treat replacement as a controlled maintenance activity under the site’s approved SIS procedure. Confirm process impact, isolation requirements, and the applicable Emerson instructions before disconnecting or replacing the panel.
What should I verify before buying a used ?
Request clear nameplate and enclosure photographs, serial number, condition details, power-selector setting, available test records, and confirmation of the included components. Match the panel to the installed DVC controller, firmware, wiring, and hazardous-area requirements.
Bottom Line for Buyers
The is a dedicated local control panel for FIELDVUE SIS valve applications. Its value as a replacement depends on controller compatibility, wiring and power configuration, hazardous-area approval, and successful functional testing.
For procurement, request the complete nameplate, verify the connected DVC model and firmware, and establish exactly what is included in the sale. For an SIS installation, prioritize documented compatibility and controlled validation—not simply a matching enclosure or a successful power-up.
