1. Product Overview

Product Name: Power Supply Unit
Model: POW‑AD22
Series: F&eIT Power Supply Series
Article Number: POW‑AD22GY
Manufacturer: CONTEC CO., LTD. (Japan)

The CONTEC POW‑AD22 is an industrial‑grade AC‑DC power supply designed specifically for the F&eIT (Factory and Enterprise IT) Series of distributed monitoring and control systems. It provides a regulated 5 V DC output at up to 3 A from a wide‑range AC input of 85 – 264 V AC. The unit is optimized for powering microcontrollers, I/O controllers, assist servers, monitoring servers, and other F&eIT modules that operate on a 5 V DC bus. Its compact DIN‑rail‑mountable form factor and robust electrical design make it suitable for industrial automation, embedded control, and distributed I/O applications.

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2. Key Features

- Wide Input Range: Accepts 85 – 264 V AC, supporting both 100 V and 240 V mains environments without manual switching.
- Stable 5 V DC Output: Provides a regulated 5 V DC output with ±5 % tolerance, rated at 3.0 A maximum continuous current.
- Compact DIN‑Rail Design: 25.2 mm (W) × 64.7 mm (D) × 94.0 mm (H) housing enables installation in confined control panels.
- Optimized for F&eIT Systems: Designed to power CONTEC’s F&eIT microcontrollers, I/O controllers, servers, and device modules.
- Industrial Reliability: Built to withstand industrial noise levels (IEC 1000‑4‑4 Level 3 / EN 61000‑4‑4 Level 3) and environmental conditions typical of factory automation.
- Lightweight Construction: Weighs only 110 g, minimizing load on DIN rails and simplifying integration in distributed systems.
- High Efficiency and Low Heat: Fanless operation with natural convection cooling ensures silent, maintenance‑free performance.
- Safety and Compliance: Meets CE and FCC Class A standards for industrial electronic equipment.
- Plug‑and‑Play Integration: Compatible with all F&eIT modules through standardized 5 V DC connectors and stackable bus architecture.
- Extended Operating Range: Operates reliably from 0 °C to 50 °C and 10 – 90 % RH (non‑condensing).

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3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Model | POW‑AD22GY |
| Input Voltage Range | 85 – 264 V AC (50/60 Hz) |
| Output Voltage | 5.0 V DC ± 5 % |
| Output Current | 3.0 A (max.) |
| Rated Output Power | 15 W (max.) |
| Efficiency | Approx. 80 % (typical, depending on load) |
| Operating Temperature | 0 °C – 50 °C |
| Storage Temperature | –10 °C – 60 °C |
| Operating Humidity | 10 – 90 % RH (no condensation) |
| Cooling Method | Natural air convection (fanless) |
| Noise Immunity | AC line / 2 kV, signal line / 1 kV (IEC 1000‑4‑4 Level 3, EN 61000‑4‑4 Level 3) |
| Ground Classification | D‑type (former Class 3) |
| Dimensions | 25.2 (W) × 64.7 (D) × 94.0 (H) mm (excluding protrusions) |
| Weight | 110 g (main unit only) |
| Mounting Method | 35 mm DIN rail |
| Output Connector Type | 2‑piece removable terminal block |
| Case Material | Industrial‑grade resin enclosure |
| Color | Gray (GY) |
| Compliance | CE, FCC Class A |
| Manufacturer | CONTEC CO., LTD., Japan |

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4. Functionality

The POW‑AD22 functions as a compact AC‑DC converter that supplies regulated 5 V DC power to F&eIT system components. It converts standard AC mains input (85 – 264 V AC) into a stable low‑voltage DC output suitable for powering microcontrollers, I/O controllers, assist servers, and device modules. The unit is designed for continuous operation in industrial environments and can be mounted directly onto a 35 mm DIN rail inside control panels or distributed I/O enclosures.

Typical Use Cases:
- Powering F&eIT microcontrollers (CPU‑SBxx(FIT)GY series) used for embedded control.
- Supplying I/O controllers (CPU‑CAxx(FIT)GY) and assist servers (SVR‑IOA(FIT)GY) in distributed monitoring networks.
- Providing regulated DC power to monitoring and control servers (SVR‑MMF(FIT)GY) and security servers (SVR‑SEC(FIT)GY).
- Supporting device modules such as digital I/O, analog I/O, counter, relay, and communication modules.
- Acting as a general‑purpose 5 V DC supply for other low‑voltage industrial electronics.

Compatibility:
Fully compatible with all F&eIT Series modules and accessories, including microcontrollers, I/O controllers, assist servers, monitoring servers, and device modules. It can also be used with third‑party 5 V DC devices requiring up to 3 A current, provided they meet the same electrical specifications.

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5. Components & Accessories

Included Items:
- POW‑AD22 main power supply unit
- Removable 2‑piece terminal connector for input/output wiring
- User documentation (specification sheet)

Optional Accessories:
- POA‑AD22 AC Adapter (1.4 m cable): External adapter version providing 5 V DC / 2 A output from 90 – 264 V AC input.
- FAN‑FIT Cooling Fan: Optional 5 V DC fan module (0.18 A, 0.1 m³/min airflow) for raising allowable operating temperature to 60 °C.
- DIN‑Rail Mounting Hardware: Standard 35 mm rail clips integrated; optional replacement clips available.
- Device Modules: Compatible with all F&eIT device modules (digital, analog, counter, relay, serial, and GPIB).
- Cabling: Standard industrial‑grade power cables and connectors (not included).

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6. Installation & Setup

Mounting Requirements:
- Mount on a standard 35 mm DIN rail using the integrated clip mechanism.
- Ensure adequate ventilation for natural convection cooling.
- Maintain clearance of at least 10 mm above and below the unit for heat dissipation.
- Install in an environment free from excessive dust, corrosive gases, or vibration.

Electrical Connections:
- Input: Connect 85 – 264 V AC mains to the input terminals using appropriate gauge wire (AWG 24 – 16).
- Output: Connect the 5 V DC output terminals to the load (F&eIT modules or other devices).
- Observe correct polarity and ensure total load current does not exceed 3 A.
- Ground the unit using the FG terminal to reduce electrical noise.

Configuration:
- No software configuration required.
- The unit automatically adjusts to input voltage within the specified range.
- Verify output voltage with a multimeter before connecting sensitive devices.

Safety Precautions:
- Disconnect AC power before wiring or maintenance.
- Use only in dry, indoor industrial environments.
- Follow local electrical codes and safety standards.

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7. Performance & Capabilities

- Output Stability: Maintains ±5 % voltage regulation under varying load and input conditions.
- Load Capacity: Supports up to 3 A continuous current, sufficient for powering multiple F&eIT modules (total consumption ≤ 3 A).
- Efficiency: High conversion efficiency minimizes heat generation and power loss.
- Ripple & Noise: Low output ripple ensures stable operation of sensitive digital and analog circuits.
- Thermal Performance: Operates fanlessly up to 50 °C ambient; optional fan extends range to 60 °C.
- Reliability: Designed for 24/7 continuous operation in industrial automation systems.
- Protection Features: Internal over‑current and over‑voltage protection circuits safeguard connected devices.
- Limitations: Not intended for outdoor use or environments with condensation, corrosive gases, or explosive atmospheres.

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8. Standards & Compliance

The POW‑AD22 meets international standards for industrial electronic equipment:

- EMC Compliance:
- IEC 1000‑4‑4 Level 3 / EN 61000‑4‑4 Level 3 (Electrical Fast Transient/Burst immunity)
- FCC Class A (Industrial environment)
- Safety Compliance:
- CE Marking (Low Voltage Directive and EMC Directive)
- Ground classification: D‑type (former Class 3)
- Environmental Compliance:
- RoHS‑compliant (lead‑free design)
- Designed for operation in 0 – 50 °C, 10 – 90 % RH environments
- Quality Assurance:
- Manufactured under CONTEC’s ISO‑certified quality management system
- Factory‑tested for electrical performance and insulation resistance

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9. Additional Information

Warranty:
One‑year limited warranty from the date of purchase. CONTEC provides free repair or replacement within the warranty period under normal operating conditions, in accordance with its product warranty policy.

Technical Support:
- Global support network with offices in Japan, USA, Europe, Korea, China, and Taiwan.
- Technical documentation, drivers, and updates available at [www.contec.com](http://www.contec.com).
- Email and phone support for installation, configuration, and troubleshooting.

Maintenance:
- Periodically inspect wiring and terminal connections for looseness or corrosion.
- Clean the unit with dry air or a soft brush; avoid solvents or moisture.
- Replace the unit if physical damage or abnormal heating occurs.
- Optional fan (FAN‑FIT) may be replaced after 30,000 – 50,000 hours of operation.

Firmware/Software Updates:
Not applicable; the POW‑AD22 is a hardware‑only power supply with no firmware.

Service Life:
Designed for long‑term industrial use with MTBF exceeding 100,000 hours under nominal load and temperature conditions.

Environmental Considerations:
- Lead‑free, RoHS‑compliant construction.
- Recyclable materials used in casing and packaging.
- Dispose of according to local electronic waste regulations.

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### Summary

The CONTEC POW‑AD22 is a compact, high‑reliability AC‑DC power supply engineered for the F&eIT Series of distributed industrial automation systems. With its wide 85 – 264 V AC input range, regulated 5 V DC / 3 A output, and DIN‑rail‑mountable design, it provides a stable and efficient power source for microcontrollers, I/O controllers, assist servers, and device modules. The unit’s robust electrical noise immunity, fanless operation, and lightweight construction make it ideal for factory automation, embedded control, and remote monitoring applications. Fully compliant with CE, FCC Class A, and IEC 1000‑4‑4 standards, the POW‑AD22 ensures reliable performance in demanding industrial environments while maintaining ease of installation and maintenance.