Description

Yokogawa AEP7D-10 Primary Power Supply Bus Unit

Configured for power distribution and source segregation in Yokogawa DCS cabinet infrastructure, the Yokogawa AEP7D-10 (AEP7D Primary Power Supply Bus Unit) provides direct electrical power routing from dual AC input lines to multiple downstream system loads. The unit supports independent Line A and Line B power paths and distributes incoming AC power through dedicated output circuits within compatible Yokogawa control system architectures.

Suffix Breakdown & Model Matrix

Code	Description
AEP7D	Primary Power Supply Bus Unit (Horizontal Rack-Mount Type)
-1	100 to 120 VAC input power supply
0	Configuration for Yokogawa standard cabinet (AFV40x / ACB51 application)
Full Model	AEP7D-10

Hardware Specifications

Parameter	Specification
Model	AEP7D-10
Brand	Yokogawa
Origin	Japan
Product Type	Primary Power Supply Bus Unit
Input Voltage Range	100 to 120 VAC
Frequency	50/60 Hz
Maximum Input Current (Total Unit)	20 A
Maximum Input Current (Per Port)	6 A
Output Configuration	7 outputs (Line A) + 7 outputs (Line B)
Parallel Output Configuration	Up to 14 outputs when Line A and Line B are interconnected
Withstanding Voltage	1500 VAC
Mounting Method	19-inch Rack Mount, Horizontal Type
Weight	Approx. 1.8 kg
Explosion Protection	Basic type, no dedicated explosion-protection designation

DCS Power Distribution and Channel Isolation Characteristics

Within Yokogawa distributed control system installations, the AEP7D-10 functions as a cabinet-level AC power distribution component. Line A and Line B are physically and electrically separated, allowing independent maintenance procedures without requiring complete shutdown of connected system assemblies.

The unit supports dual-source power architectures commonly implemented in DCS environments. Electrical isolation between incoming power paths reduces the possibility of unintended interaction between redundant supply sources and allows individual branch distribution to associated control hardware.

Frequently Asked Questions

Q: Does the AEP7D-10 support dual incoming power sources?
A: Yes. The unit accepts two independent AC input sources identified as Line A and Line B, with separate distribution outputs for each line.

Q: How many output distribution circuits are available?
A: The standard configuration provides seven outputs for Line A and seven outputs for Line B. When both input lines are connected in parallel, up to fourteen outputs can be supplied from a single source.

Q: Is hot replacement of power wiring supported during operation?
A: Available documentation specifies electrical separation of Line A and Line B for maintenance purposes. Specific hot-swap procedures should follow the applicable Yokogawa cabinet and site maintenance documentation.

Field Installation Guidelines

• Verify incoming supply voltage is within the specified 100 to 120 VAC range before energizing the unit.
• Maintain separation between Line A and Line B wiring according to cabinet design documentation.
• Confirm branch circuit loading does not exceed 6 A per output port or 20 A total unit input current.
• Use cabinet grounding practices consistent with plant electrical standards and Yokogawa installation requirements.
• Route power conductors separately from low-level signal wiring to minimize electromagnetic coupling.
• Inspect terminal tightness during commissioning and scheduled maintenance intervals.
• Confirm rack mounting hardware is properly secured before connecting field power circuits.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems