Bently Nevada 3701/55 289761-01 ADAPT ESD Overspeed Safety Device

Bently Nevada 3701/55 289761-01 is an ADAPT series triple redundant emergency shutdown safety controller, specially designed for rotating machinery overspeed protection. It collects speed signals from proximity probes and executes safety trip logic to prevent turbine and compressor overspeed damage.

This SIL3 certified safety PLC supports graphical logic configuration, built-in comprehensive self-diagnosis and Modbus TCP communication. It is widely used in power, petrochemical and oil & gas plants for critical rotating equipment safety protection and spare replacement.

Data Parameters

• 1. Brand: Bently Nevada (Baker Hughes).

• 2. Model: 3701/55 289761-01.

• 3. Product Type: ADAPT ESD Overspeed Safety Controller.

• 4. Application: Turbine, compressor and rotating machinery overspeed protection.

• 5. Feature: TMR triple modular redundant architecture, SIL3 certified.

• 6. Characteristic: Integrated speed detection, configurable safety trip logic.

• 7. Communication: Modbus TCP / Ethernet interface.

• 8. Power Supply: 24VDC.

• 9. Mounting: Rack-mounted safety unit in protection cabinet.

• 10. Operating Temperature: -20℃ ~ +65℃.

Core Functions

• 1. Real-time speed signal acquisition from eddy current proximity probes.

• 2. Overspeed judgment and emergency shutdown trip output with TMR voting.

• 3. Full channel self-diagnosis for probe, circuit and internal hardware fault.

• 4. Support graphical safety logic editing and parameter configuration.

• 5. Transmit running status and alarm data to DCS via Ethernet.

Application Scenarios

• 1. Steam turbine, gas turbine and hydro turbine overspeed protection cabinet.

• 2. Petrochemical centrifugal compressor and expander safety interlock system.

• 3. Power plant generator set critical machinery safety control.

• 4. Bently ADAPT overspeed ESD system maintenance and spare replacement project.

• 5. SIL3 overspeed safety spare inventory backup for hazardous process industry.

FAQ

• 1. Q: What is Bently Nevada 3701/55 289761-01?
      A: It is an ADAPT TMR overspeed ESD safety controller for rotating machinery protection.

• 2. Q: What safety level does it reach?
      A: It is SIL3 certified, meeting high safety integrity requirements.

• 3. Q: Can it communicate with DCS?
      A: Yes, it supports Modbus TCP Ethernet communication for status uploading.