Yokogawa AEP7D-15 Power Supply Bus Unit

The Yokogawa AEP7D-15 Power Supply Bus Unit is a high-capacity, reliable power distribution unit designed for Yokogawa’s distributed control systems (DCS). It provides stable, regulated DC power to multiple I/O and processor modules, ensuring continuous operation of critical control functions.

This unit is engineered for industrial environments where reliability, performance, and redundancy are essential. The AEP7D-15 supports high-current loads, includes built-in overcurrent protection, and minimizes voltage ripple, enabling consistent operation of connected modules. It is widely used in power generation, chemical processing, oil and gas, and large-scale manufacturing facilities.

Product Specifications

Product Applications

The AEP7D-15 Power Supply Bus Unit is essential for reliable power management in industrial automation:

• Distributed Control Systems (DCS) – Provides regulated DC power to analog and digital modules.

• Process Control Plants – Powers pressure, temperature, flow, and level monitoring modules.

• Power Generation Facilities – Supports turbine, generator, and auxiliary control systems.

• Petrochemical and Chemical Plants – Maintains stable operation for critical process instrumentation.

• Oil & Gas Operations – Provides robust power for field signal acquisition and control modules.

• Large-Scale Industrial Automation – Supplies reliable power to multiple modules in high-density racks.

Product Advantages

• High Current Capacity – Supports up to 10 A per bus line for large module racks.

• Stable Voltage Supply – Maintains minimal ripple (<50 mV) for accurate module operation.

• Overcurrent Protection – Protects modules from electrical faults.

• Redundant Power Capability – Can be configured in parallel with other units for high availability.

• Modular Integration – Fits Yokogawa DCS racks for plug-and-play operation.

• Flexible Voltage Support – Supplies multiple DC voltages for different module types.

• Compact Design – Efficient rack-mount form factor saves space.

• Standard Compliance – Meets IEC/EN EMC and safety standards for industrial environments.

FAQ

1. What output voltages does the AEP7D-15 provide?

   It provides regulated 5 V DC and 24 V DC, depending on system configuration.

2. What is the maximum output current per bus line?

   Up to 10 A per module bus line.

3. Is overcurrent protection included?

   Yes, each output channel has built-in overcurrent protection.

4. Can it power both analog and digital modules simultaneously?

   Yes, it distributes power to all connected modules through the DCS backplane.

5. What input voltage range is supported?

   100–240 V AC, 50/60 Hz.

6. How is voltage ripple managed?

   The unit maintains ripple below 50 mV peak-to-peak through regulated circuitry.

7. Is the unit hot-swappable?

   Hot-swap capability depends on the rack design; refer to Yokogawa documentation for safe procedures.

8. What is the operating temperature range?

   0–55 °C for normal operation.

9. Can multiple units be used in parallel for redundancy?

   Yes, parallel configurations support high-availability setups.

10. Does the unit meet international EMC and safety standards?

    Yes, it complies with IEC/EN EMC and electrical safety standards.