Description
OMRON CJ1W‑PD025‑SF
Technical Specifications: Input voltage range DC19.2‑28.8V; total maximum output power 25W; DC5V backplane output current 5.0A; auxiliary DC24V output current 0.8A; maximum power consumption 50W; cold‑start inrush current 30A / 20ms maximum; operating temperature 0‑55°C; storage temperature ‑20‑75°C; operating humidity 10‑90%RH without condensation; dielectric strength 1000V AC for 1 minute between DC external terminals and ground; insulation resistance ≥20MΩ at 500V DC; weight 335g; rack slot installation; power status LED indicator; compliant with CE and cULus industrial standardsOMRON Indu….
Functional Features: Provides stable DC bus power for the entire CJ‑series main rack; built‑in hardware overload and short‑circuit protection to cut off backplane output under fault conditions; LED power indicator directly reflects real‑time working state; complete electromagnetic interference suppression circuit resists industrial power‑line noise; rack‑slot structure realizes fast mechanical connection with backplane bus; no extra external service‑supply terminals; compatible with all standard CJ‑series CPU and I/O hardware.
Application Scenarios: DC‑powered CJ‑series PLC main rack power supply; industrial automation control cabinets with 24V DC field power infrastructure; machinery equipment control systems; spare‑part replacement for legacy CJ‑series automation installations; mobile automation equipment powered by DC power sources.
Performance Parameters: Meets IEC61000‑4‑4 noise immunity standard with 2kV surge resistance on power lines; vibration resistance complies with IEC60068‑2‑6; shock resistance complies with IEC60068‑2‑27; supports continuous 24‑hour cabinet‑internal operation; protection mechanism triggers rapidly under overload and short‑circuit fault conditions.
Material Composition: Housing made of black V0 flame‑retardant engineering plastic; internal FR‑4 flame‑retardant glass‑fiber power PCB board; brass nickel‑plated screw terminals; gold‑plated spring contact strips for backplane connection; high‑efficiency switching power components; high‑brightness LED status indicator.
Structural Features: Standard CJ‑rack slot form factor; screw‑type DC input terminals arranged on front side; power status LED on front panel; gold‑plated elastic contacts on rear face interface with rack backplane bus; locking latches on both sides secure module into rack slots; top housing equipped with heat‑dissipation grille openings.
Working Principle: External DC24V power feeds into the module’s input terminals. Input voltage passes through EMI filter circuit and DC‑DC conversion circuit to generate regulated DC5V and auxiliary DC24V power. Electric power is distributed to all rack‑mounted modules through rear gold‑plated spring contacts. Internal current‑detection circuit continuously monitors output load status. When overload or short‑circuit events occur, hardware protection activates to limit or shut down backplane output to protect downstream PLC hardware.
Installation Requirements: Must be mounted on the leftmost slot of CJ‑series CPU main rack; secure the main rack to standard cabinet DIN rail; reserve sufficient heat‑dissipation clearance around module and never block top ventilation grilles; select input power cables with appropriate wire gauge; implement reliable protective cabinet grounding with grounding resistance below 100Ω; separate power input cables from high‑power motor and inverter cables.
Usage Notes: Total power consumption of all modules on the main rack shall not exceed 25W rated output capacity; hot‑swap of this power unit is prohibited; confirm input DC voltage level before power‑on; cannot be used for CJ‑series expansion I/O racks; operate only in environments free of corrosive gas and condensation; inspect terminal screw tightness periodically.
