Yokogawa AEP7D-25 Power Supply Bus Unit

The Yokogawa AEP7D-25 Power Supply Bus Unit is an advanced power distribution component designed for use in Yokogawa’s distributed control systems (DCS). It provides stable, high-capacity DC power to multiple control and I/O modules, ensuring uninterrupted system operation in demanding industrial applications.

This model represents one of the most robust units in the AEP7D series, engineered to support large-scale process automation systems that require redundancy, high output current, and stable performance. With built-in protective mechanisms such as overcurrent and short-circuit protection, the AEP7D-25 guarantees the reliability and safety of critical operations in industries like oil & gas, petrochemical, power generation, and large-scale manufacturing.

Product Specifications

Product Applications

The AEP7D-25 is designed for industries and systems where reliable power delivery is essential. Key applications include:

• Process Automation Systems – Powers both analog and digital I/O modules for large DCS installations.

• Power Generation – Ensures stable power for turbine and generator control systems.

• Oil & Gas Industry – Provides uninterrupted power for offshore and onshore control environments.

• Chemical & Petrochemical Plants – Delivers stable, low-noise power for sensitive instrumentation.

• Pharmaceutical Manufacturing – Supports clean, regulated power for precise control processes.

• Heavy Industrial Automation – Maintains reliable operation for high-density rack configurations.

Product Advantages

• High Current Output – Supports up to 20 A, making it suitable for demanding process environments.

• Dual Voltage Capability – Provides both 5 V DC and 24 V DC to support a variety of modules.

• Low Ripple Design – Ensures reliable performance for sensitive analog and digital circuits.

• Integrated Protection – Includes per-channel overcurrent and short-circuit safeguards.

• Redundancy Ready – Can be paired with another unit for high-availability systems.

• Rugged Industrial Build – Optimized for harsh process plant conditions.

• Seamless DCS Integration – Fully compatible with Yokogawa system racks and modules.

• International Compliance – Conforms to global EMC and electrical safety regulations.

FAQ

1. What is the maximum output current of the AEP7D-25?

   It supports up to 20 A per bus line.

2. Does the unit support redundant configurations?

   Yes, it can operate in dual redundant power supply setups.

3. What are the available output voltages?

   It provides 5 V DC and 24 V DC outputs.

4. How is voltage ripple controlled in this unit?

   Ripple is maintained below 40 mV peak-to-peak for stable power delivery.

5. Does it include short-circuit protection?

   Yes, automatic short-circuit cutoff and recovery are included.

6. Can the AEP7D-25 power both analog and digital I/O modules simultaneously?

   Yes, it can supply power to multiple module types through the backplane.

7. What is the supported input voltage range?

   100–240 V AC, 50/60 Hz.

8. Is overcurrent protection channel-specific?

   Yes, each channel has independent overcurrent protection.

9. Can multiple AEP7D-25 units be installed in parallel?

   Yes, parallel operation is supported for high-availability applications.

10. What international standards does the AEP7D-25 comply with?

    It complies with IEC/EN EMC and electrical safety standards.