AEP7D-20 Yokogawa Power Module | New & Original Stock

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Yokogawa AEP7D-20 Duplexed Safety Control Unit Configured for power regulation and distribution in CENTUM VP / CS 3000 Field Control...

رمز المنتج: AEP7D-20

Manufacturer: Yokogawa
Product No.: AEP7D-20
Product Type: Power Supply Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 1800g
Shipping port: Xiamen
Warranty: 12 months

وصف التقييمات

Yokogawa AEP7D-20 Duplexed Safety Control Unit

Configured for power regulation and distribution in CENTUM VP / CS 3000 Field Control Station systems, the Yokogawa AEP7D-20 (Yokogawa AEP7D Power Supply Module) provides direct physical/electrical execution.

Hardware Specifications

Parameter	Specification
Model	AEP7D-20
Brand	Yokogawa
Origin	Japan
Weight	1.8 kg (Gross package baseline) / 0.4 kg module nominal
Dimensions	130 mm x 107.5 mm x 32.8 mm
Operating Temp	0 to +55 deg C
Power Consumption	Internal conversion loss dependent (~50-70 W typical output)
Input Supply Voltage	220 to 240 VAC primary input options / 24 VDC nominal internal split
Input Voltage Range	21.6-26.4 VDC baseline limits
Max Input Current	20 A primary / 6 A port distribution
Withstanding Voltage	1500 VAC dielectric limit
Protection Features	Over-current, over-voltage, short-circuit, thermal shutdown
Cooling Framework	Natural convection, fanless chassis dissipation
Storage Temperature	-20 to +70 deg C
Relative Humidity	5-95% RH, non-condensing

Process Control and DCS Power System Integrity

The power distribution hardware steps down and regulates input currents to drive internal station microprocessors and communication buses. The electrical assembly maintains strict channel-to-channel isolation with a verified 1500 VAC withstanding voltage threshold, suppressing common-mode noise transfer into sensitive 4-20 mA HART loop protocol networks. This unit functions with fixed electrical tolerances independent of external firmware flash updates, utilizing integrated over-current circuits to clamp voltage ripples. Its dual-bus architecture facilitates direct hot-swap field replacement, ensuring continuous backplane potential during maintenance cycles without dropping active process control parameters.

Frequently Asked Questions

Q: How does the AEP7D-20 handle input power spikes or over-voltage anomalies on the primary AC side?

A: The module contains internal surge filters and over-voltage protection circuits. When a transient power surge crosses the maximum input voltage threshold, the input stage safely limits the downstream potential and absorbs the energy up to its 1500 VAC withstanding voltage rating to insulate running FCS components from damage.

Q: What are the backplane loading considerations when integrating this power module into a duplexed architecture?

A: In a duplexed safety control configuration, two power modules share the total active rack current load. If one power unit drops offline, the remaining module instantly captures the full 6 A port requirement without causing backplane voltage drops or interruption to running control processors.

Field Installation Guidelines

Chassis Engagement and Mechanical Securing: Slot the power module assembly into its dedicated card bay within the Field Control Station cabinet frame. Push firmly along the internal guide tracks until the rear power distribution headers mate fully with the backplane, then lock the retention fasteners.
AC Input and Port Power Cable Separation: Route all primary 220 to 240 VAC supply conductors away from low-voltage analog signal lines and digital bus links. Place input power wiring inside separate, grounded steel wire ways to ensure maximum cross-talk suppression.
Enclosure Safety Earth Ground Connection: Bolt a low-impedance copper ground strap from the module's primary chassis ground terminal directly to the main cabinet instrumentation earth bar. Proper grounding is essential to validate the 1500 VAC dielectric isolation barrier and drain electromagnetic interference.

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