Description
Emerson PSM-E01
Technical Specifications: Power supply: 24 VDC Monitoring signal: voltage, current, temperature Relay contact rating: 250 VAC, 2 A Operating temperature: 0 ℃ to 60 ℃ Storage temperature: -40 ℃ to 85 ℃ Relative humidity: 5% to 95% non-condensing Communication: RS485
Functional Features: Real-time monitoring of power supply voltage, current and temperature. Hardware threshold judgment for power fault. Dry contact relay alarm output. LED indicators for power status and fault. Built-in self-diagnosis for internal circuit. Digital communication uploads power operating data. Parameter configuration for alarm threshold.
Application Scenarios: DCS control cabinet power health monitoring, machinery protection rack power monitoring, industrial server cabinet power monitoring, water treatment control system power monitoring, petrochemical control cabinet power condition monitoring.
Performance Parameters: Voltage measurement accuracy: ±0.5% full scale Vibration resistance: 10 Hz to 150 Hz, 0.5 g Shock resistance: 10 g peak acceleration, 11 ms duration MTBF value: 224000 hours
Material Composition: Module housing: UL94-V0 flame-retardant thermoplastic. Main PCB: FR-4 glass fiber epoxy substrate. Backplane connector pins: gold-plated copper alloy. Terminal blocks: nickel-plated brass. Side locking latches: reinforced engineering plastic.
Structural Features: Standard rack plug-in module. Two side locking latches fix module to rack backplane. Front panel has LED indicators and wiring terminals. Rear multi-pin gold-plated connector connects rack backplane. Vent slots for passive heat dissipation. Internal sampling circuit for power parameter collection.
Working Principle: The module samples voltage, current and temperature signal from rack power supply. Internal processing unit compares measured value with preset threshold. When power parameter exceeds limit, relay contact changes state to trigger alarm. Monitoring data transmits to upper system via RS485 bus. Self-diagnosis circuit checks internal sampling circuit continuously.
Installation Requirements: Insert module into dedicated slot of control rack and lock latches. Use shielded cable for communication wiring. Separate sampling signal cable and high-power cable. Cut off rack power before module installation or removal. Set alarm threshold after power on.
Precautions for Use: Do not exceed rated contact load of relay. Wear anti-static wristband during maintenance. Check sampling wiring connection regularly. Keep vent slots free of dust. Do not install in environment with oil mist.
