Brief Product Description

Emerson 5X00226G02 (ex-Westinghouse) is an 8-channel analog output AO module for the Ovation DCS distributed control system. It receives digital control commands from the Ovation controller and converts them into 4-20mA analog current signals for field transmitters, valve positioners and regulating actuators. It adopts 16-bit high-resolution D/A conversion, supports HART protocol communication, each channel has electrical isolation and channel-level fault diagnosis. The module supports redundant configuration, single-slot plug-in installation on Ovation I/O rack backplane, designed for continuous long-running critical process control in power and chemical industries. Fully tested surplus and refurbished Emerson 5X00226G02 modules are available for legacy Ovation DCS maintenance, analog output module replacement and plant control system retrofit projects.

Core Product Functions

• 8 analog output channels, output 4-20mA current signal for field control equipment
• 16-bit D/A high precision conversion, stable and accurate analog control output
• Built-in HART function, can communicate with HART smart field instruments
• Per-channel isolation design, reduce cross-channel interference
• Channel self-diagnosis, detect open circuit, short circuit and loop fault
• Supports redundant module configuration to improve system reliability
• Transmit DCS control setpoint to valve positioners and process regulators
• Single-slot plug-in design for Ovation I/O chassis backplane
• LED status indicators for power, run and channel fault alarm for field inspection

Application Scenarios

• Legacy Emerson Ovation DCS analog regulating control loops
• Thermal power plant boiler feedwater, steam temperature, pressure control valve command output
• Petrochemical, refinery flow, liquid level, pressure continuous regulation control
• Oil & gas, pulp & paper industry 4-20mA actuator and smart instrument driving
• Metallurgy, water treatment process analog closed-loop adjustment system
• Legacy Ovation analog output module replacement, maintenance and plant retrofits

FAQ (Frequently Asked Questions)

• Q: 4-20mA output drifting or no current after installing 5X00226G02?
  A: Check field loop wiring and load resistance, verify 24VDC loop power supply, inspect backplane contact, confirm DCS configuration and grounding shielding anti-interference.
• Q: Does Emerson 5X00226G02 support hot-swap replacement?
  A: Hot swap is supported, but evaluate process risk and bypass the control loop, perform lockout-tagout before online replacement to prevent process disturbance.
• Q: What system platform is 5X00226G02 used for?
  A: It belongs to Emerson Ovation DCS distributed control system, 5X series I/O module.
• Q: What is the signal range and resolution?
  A: 4-20mA analog current output, 16-bit high resolution, supports HART communication.
• Q: Is Emerson 5X00226G02 available for new control projects?
  A: This legacy Ovation analog output module is end-of-life for new installations. Only fully tested surplus and refurbished units are supplied for existing DCS system maintenance and retrofits.