أصلي 100%. أكثر من 100,000 قطعة متوفرة. جاهزة للشحن.

  • ar

YOKOGAWA NFPW444-50 Power Supply Module

Configured for signal amplification and regulated DC power generation in CENTUM VP control nodes, the YOKOGAWA NFPW444-50 (NFPW444 Power Supply Module) provides direct physical/electrical execution.

Hardware Specifications

Parameter Specification
Model NFPW444-50
Brand YOKOGAWA
Origin Japan / China
Weight 0.6 kg
Dimensions 146.5 x 49.7 x 130.0 mm
Operating Temp -20 deg C to +60 deg C
Power Consumption 24 VDC input, up to 7.8 A output capacity
Input Voltage 24 VDC +/-10% (range: 21.6 to 31.2 VDC)
Output Voltage +5.1 VDC regulated
Protection Rating IP56
Supported Protocols Modbus, PROFIBUS, FOUNDATION Fieldbus, HART, Vnet/IP
Signal Distance Extension Up to 2 km
Redundancy Dual-redundant configuration with hot-swap capability

Channel-to-Channel Isolation & Fieldbus Power Conditioning

The module integrates internal signal amplification and isolation barriers designed to condition primary power rails and extend system communications up to 2 km. By decoupling internal regulated +5.1 VDC logic power from incoming 24 VDC lines, the unit suppresses cross-talk and transient noise interference. This isolation protects connected 4-20 mA HART loop protocol instruments and fieldbus sub-networks during severe voltage fluctuations or ground potential shifts.

Frequently Asked Questions

Q: How does the module handle maintenance replacement without system interruption?

A: The module supports hot-swappable installation within dual-redundant rack configurations, allowing field technicians to replace an active unit while secondary hardware maintains system bus power and signal transmission.

Q: What power input tolerances are permitted during operational supply fluctuations?

A: The unit accepts a nominal 24 VDC supply with an operating input envelope between 21.6 VDC and 31.2 VDC while generating a regulated +5.1 VDC output for local bus logic.

Field Installation Guidelines

  • Mount the module securely in designated rack slots, verifying that all physical card guide mechanisms engage completely.
  • Verify ground connection integrity by terminating cabinet ground leads to dedicated earth studs, preventing stray ground loops across fieldbus cable shields.
  • Maintain clear thermal boundary clearances around the IP56 enclosure to facilitate adequate convection cooling across the full operating range of -20 deg C to +60 deg C.
  • Inspect field power wiring terminals to confirm correct wire gauge selection and apply recommended terminal screw tightening torque to prevent loose connections.

ماذا يقول عملاؤنا عنا؟

Translation missing: ar.general.search.loading