Description
Emerson SP9414
Technical Specifications
- Input Voltage Range: 85VAC ~ 264VAC wide AC input
- Multiple DC output channels for I/O modules
- Redundant parallel hot backup function
- Built‑in overvoltage, undervoltage, overcurrent and overtemperature hardware protection
- Operating Ambient Temperature: 0℃ ~ 60℃
- Storage Temperature: -40℃ ~ 85℃
- Relative Humidity: 5% ~ 95%, non‑condensing
- Rack plug‑in installation
- Front panel LED indicators for power and fault status
Functional Features
Wide AC input adapts to unstable power grid environment of field workshop. Multiple DC outputs supply power for digital input, digital output, analog input and analog output modules separately. Redundant parallel design guarantees uninterrupted power supply of remote I/O rack when single power module fails. Hardware protection circuit cuts off output rapidly under fault conditions. Front panel LED indicators display real‑time running state and fault alarm. Plug‑in mechanical structure supports hot swap under non‑critical process operating conditions.
Application Scenarios
Ovation remote I/O racks in thermal power plants, chemical factories and pulp & paper industries. It supplies power for all I/O modules in distributed field I/O cabinets.
Performance Parameters
Power conversion circuit maintains stable DC output under full I/O rack load within rated temperature range. Redundant power switchover completes instantly without interruption of I/O signal acquisition and output. Protection circuit responds quickly once electrical parameters exceed safety threshold. Low output ripple reduces interference to analog signal collection of I/O modules.
Material Composition
Metal housing with anti‑corrosion coating. Multi‑layer flame‑retardant glass fiber epoxy PCB. High‑frequency transformer, rectifier diodes, filter capacitors, power switching tubes and sampling chips. Gold plated copper alloy backplane connector. Flame‑retardant plastic front panel fitted with LED indicators.
Structural Features
Standard plug‑in module for Ovation I/O rack power slot. Front panel equipped with power running LED and fault alarm LED. Internal metal shielding shell reduces electromagnetic radiation. Rear gold plated connector mates with I/O rack backplane. Air inlet and outlet vents on housing for heat dissipation.
Working Principle
AC power enters module through rack backplane connector. AC‑DC conversion circuit converts alternating current into stable direct current after rectification, filtering and voltage regulation. DC power transmits to each I/O module slot through I/O rack backplane. Sampling circuit continuously monitors output voltage, current and internal temperature. When parameters exceed preset limit, hardware protection circuit activates and triggers fault alarm signal. Two redundant modules share load in normal working state, and healthy module undertakes full load when the other module fails.
Installation Requirements
Cut off rack AC power before installation. Insert module along rack guide rail into power slot and lock mechanical latch. Confirm AC wiring meets power specification. Ensure air inlet and outlet vents stay unblocked. Configure redundant power function on DCS engineering station when two power modules are installed.
Precautions for Use
Apply anti‑static protection during module handling. Do not block cooling vents on module housing. Inspect AC input cable tightness regularly. Do not disassemble metal housing of power module. Replace module immediately once fault alarm lights up.
