Description
The ProTech 203 Model 8200-206 is an advanced digital overspeed trip device featuring an Energize-to-Trip configuration, operating on a 24 VDC power supply. Housed in a secure, lockable enclosure, it is engineered for critical industrial rotating machinery to provide reliable overspeed protection. The unit is equipped with comprehensive trip alarms and status LEDs, ensuring clear visual indication of operational safety and immediate fault identification in demanding industrial environments.
⚙️ Product Datasheet & Technical Parameters
• Brand: Woodward (ProTech 203)
• Model Number: 8200-206
• Series: ProTech Series Safety Systems
• Product Name: Digital Overspeed Trip Device (Energize-to-Trip)
• Origin: United States
• Production Status: Active / Industrial Standard
• Dimensions: Standard Lockable Enclosure Configuration
• Weight: Approximately 1.6 kg
• Country of Origin: United States
• Power Consumption: 24 VDC (Nominal)
🔌 Operating Guidelines and Usage Methods
The ProTech 203 Model 8200-206 is designed for secure panel mounting or local enclosure installation near prime movers. Proper installation requires wiring independent magnetic pickup (MPU) speed sensors using shielded cables that are grounded correctly to eliminate electrical interference. Because this unit utilizes an Energize-to-Trip configuration, control loops and power inputs must be continuously monitored to ensure the trip circuit remains active and ready to energize the shutdown mechanism upon an overspeed event. Security keys for the lockable enclosure should be managed strictly by authorized personnel.
🔄 Power-On and Power-Off Sequence
Power-On Sequence: First, verify all external sensor connections, enclosure security, and safety interlocks. Next, energize the primary 24 VDC power supply to the unit. Allow the internal processor to complete its automatic self-diagnostic boot sequence. Once normal system status and healthy LED indicators are confirmed, enable the external trip output control circuitry.
Power-Off Sequence: First, inhibit or bypass the trip output signals if maintenance requires powering down while the turbine is offline, or perform the procedure during a scheduled outage. Next, disconnect external sensor input lines if servicing local hardware. Finally, cut off the 24 VDC power supply to the unit.
📝 Product Description and Operation Manual
The device continuously monitors rotational speed frequency inputs from multiple speed sensors to detect hazardous overspeed conditions. Operating under an Energize-to-Trip philosophy, the unit applies power to the trip mechanism when an overspeed threshold is breached, initiating immediate prime mover shutdown. The integrated LED indicators and local display provide real-time status updates on system health, alarm conditions, and trip events. The lockable enclosure prevents unauthorized tampering with critical safety setpoints and configuration parameters.
💡 Frequently Asked Questions (Q&A)
Q: What is the specific function of the Energize-to-Trip configuration?
A: In an Energize-to-Trip architecture, the output relay or solenoid is commanded to energize (apply voltage/current) to actuate the shutdown valve when an overspeed trip condition is confirmed by the logic.
Q: Why is the enclosure lockable on this specific model?
A: The lockable enclosure prevents unauthorized access to internal wiring, terminal blocks, and configuration switches, ensuring that critical overspeed trip setpoints cannot be accidentally or maliciously altered.
Q: Are configuration settings preserved during a power outage?
A: Yes, all safety parameters, setpoints, and calibration configurations are stored in non-volatile memory, ensuring they are retained safely when power is interrupted.
Q: How can I verify that the 24Vdc power supply is functioning properly?
A: Check the front-panel status LEDs to confirm that the power indicator is lit, and use a digital multimeter to measure the input voltage directly at the power supply terminals if troubleshooting is required.
🚀 Recommended Woodward ProTech Series Models
- 8200-200
- 8200-201
- 8200-202
- 8200-203
- 8200-204
- 8200-205
- 8200-207
- 8200-208
- 8200-209
- 8200-210
