Description
The Woodward Overspeed Protection 8200-210 is an advanced electronic two-out-of-three (2oo3) ProTech system engineered to safeguard critical industrial prime movers against hazardous overspeed and over-acceleration conditions. Designed for robust operation in demanding plant environments, this unit features a 220 Vac input power supply, comprehensive CPU and MPU (Magnetic Pickup Unit) failure indication for enhanced diagnostic transparency, and a remote reset functionality that allows operators to clear trip conditions safely from a distance.
⚙️ Product Datasheet & Technical Parameters
• Brand: Woodward (ProTech Series)
• Model Number: 8200-210
• Series: ProTech Safety Systems Series
• Product Name: Digital Overspeed Trip Device
• Origin: United States
• Production Status: Active / Industrial Standard
• Dimensions: Standard Panel Mount Enclosure Configuration
• Weight: Approximately 1.6 kg
• Country of Origin: United States
• Power Consumption: 220 VAC (Nominal Input)
🔌 Operating Guidelines and Usage Methods
The 8200-210 is designed for secure panel integration within central control rooms or local turbine enclosures. Installation requires connecting redundant MPU speed sensors using properly shielded and grounded cables to prevent electrical noise and electromagnetic interference from corrupting speed calculations. Operators configure trip setpoints, voting parameters, and communication options via the local interface or dedicated software tools. The remote reset terminal must be wired to an approved, secure pushbutton interlock to allow authorized remote resetting of the system following a verified trip event.
🔄 Power-On and Power-Off Sequence
Power-On Sequence: First, verify all external sensor wiring, input power connections, and safety interlocks. Next, energize the 220 VAC primary power supply. Allow the dual internal processors to complete their automatic self-diagnostic boot sequence and verify that CPU and MPU status indicators show healthy operation. Once system readiness is confirmed, arm the primary safety output relay logic.
Power-Off Sequence: First, inhibit or bypass the external trip output control signals to prevent nuisance tripping of the turbine shutdown valves during scheduled maintenance. Next, disconnect the sensor input lines if servicing local hardware. Finally, cut off the 220 VAC power supply to the unit.
📝 Product Description and Operation Manual
The device continuously processes frequency inputs from three separate speed sensors utilizing a reliable 2oo3 (two-out-of-three) voting architecture. This voting logic ensures that a single sensor failure or channel anomaly will not cause an unwanted false shutdown, while guaranteeing that a genuine overspeed condition detected by at least two channels instantly initiates a trip command. Integrated diagnostic LEDs provide immediate visual feedback regarding CPU health, sensor integrity, and alarm or trip states. In the event of a fault, detailed status information is captured for analysis by plant safety personnel.
💡 Frequently Asked Questions (Q&A)
Q: What does the CPU and MPU Failure Indication signify?
A: This diagnostic feature continuously monitors the internal processing units and the external magnetic pickup sensors. If a processor error or an open/shorted MPU circuit occurs, the unit triggers a specific failure indication to alert operators before it compromises safety.
Q: How does the remote reset functionality operate?
A: The remote reset feature allows an operator to clear a latched trip condition from a remote control desk by applying a discrete signal to the designated remote reset terminals, provided all safety criteria and speed parameters have returned to normal.
Q: Are configuration settings preserved during a total power loss?
A: Yes, all safety setpoints, calibration parameters, and event logs are stored in non-volatile memory, ensuring that data is fully preserved when power is interrupted.
Q: Why is a 2oo3 voting architecture utilized in this model?
A: The 2-out-of-3 architecture provides high system availability and fault tolerance, preventing single-point failures from causing either nuisance trips or failure-to-trip scenarios.
🚀 Recommended Woodward ProTech Series Models
- 8200-200
- 8200-201
- 8200-202
- 8200-203
- 8200-204
- 8200-205
- 8200-206
- 8200-207
- 8200-208
- 8200-209
