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YOKOGAWA F3LP02-ON
Product Introduction:
The F3LP02-ON is a redundant power supply module for the Yokogawa F3 Series Programmable Logic Controller (PLC). The “LP” designation indicates Line Power (AC input), “02” specifies the output configuration (24 V DC, 2 A per unit), and “ON” indicates the operational status indicator/variant. This module provides dual redundant 24 V DC power to the PLC CPU and I/O racks, ensuring zero-downtime power continuity in critical process control applications.
Detailed content
Technical Specifications:
- Input Voltage: 100 to 240 V AC, 50/60 Hz (universal input)
- Output Voltage: 24 V DC (regulated)
- Output Current: 2 A per module (4 A total in redundant pair)
- Redundancy: Dual module redundant configuration (automatic switchover < 10 ms)
- Efficiency: ≥85% at full load
- Protection: Overcurrent, overvoltage, short-circuit, overtemperature
- Operating Temperature: 0°C to +55°C
- MTBF: ≥100,000 hours
- Compliance: UL 508, CE, CSA C22.2 No. 142
Functional Features:
- Hot-swappable — modules can be replaced without PLC shutdown (in redundant configuration)
- Built-in OR-ing diodes for seamless automatic switchover between primary and secondary
- LED indicators: Power OK (green), Fault (red), Redundancy Status (yellow)
- Input fuse: 5 A slow-blow (replaceable)
- Output fuse: 3 A fast-acting (replaceable)
Performance Parameters:
| Parameter | Value |
|---|---|
| Output Ripple | ≤50 mV peak-to-peak |
| Line Regulation | ±0.5% (100–240 V AC input) |
| Load Regulation | ±1% (0 to 2 A output) |
| Switchover Time | <10 ms (typical) |
| Isolation | 1500 V DC between input and output |
| Inrush Current | ≤30 A peak (at 100 V AC, cold start) |
Material Composition:
- Housing: Flame-retardant ABS plastic (UL 94 V-0 rated)
- PCB: FR-4 with conformal coating
- Terminals: Phosphor bronze with tin plating, screw-type (M3.5)
- Heat Sink: Aluminum extrusion with anodized finish
Structural Characteristics:
- Form Factor: F3 Series standard module (fits F3 PLC rack)
- Dimensions: 98 mm (W) × 130 mm (H) × 90 mm (D)
- Weight: Approximately 0.45 kg per module
- Mounting: DIN rail or direct rack mounting with captive screws
Working Principle:
The F3LP02-ON accepts 100–240 V AC input, rectifies it through a bridge rectifier and PFC (Power Factor Correction) stage, then regulates the DC bus to 24 V DC using a high-frequency switch-mode DC-DC converter (typically 100 kHz PWM). In redundant mode, two modules operate in parallel with OR-ing diodes — if one module fails, the other takes over the full load within <10 ms, with no interruption to the PLC.
Key Advantages:
- <10 ms switchover time — ensures zero PLC disruption during power supply failure
- Universal AC input (100–240 V) — deployable worldwide without transformer
- Hot-swappable — maintenance without process shutdown
- UL 508 and CE certified — meets global industrial safety standards
Applicable Industries:
- Oil and gas pipeline SCADA
- Chemical batch process control
- Water treatment plant automation
- Manufacturing assembly lines
- Power substation automation
Installation Requirements:
- Install two modules in redundant pair in adjacent F3 PLC rack slots
- Connect AC input to dedicated circuit breaker (rated 10 A, C-curve)
- Bond the DC output ground to the PLC chassis ground at a single point
- Ensure minimum 50 mm clearance above and below the module for airflow
Usage Precautions:
- Never operate a single module without its redundant partner in a safety-critical application
- Replace fuses only with Yokogawa-specified ratings (5 A input, 3 A output)
- Do not block ventilation slots — overtemperature will trigger shutdown
- Verify AC input voltage is within 100–240 V range before energizing
