EB401-50 Yokogawa CENTUM VP Datasheet & Technical Manual

EB401-50 Yokogawa | Power Supply Modules

EB401-50 Yokogawa | Power Supply Modules

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Yokogawa EB401-50 ER Bus Interface Master Module Configured for power distribution and regulation in distributed control networks, the Yokogawa EB401-50...

SKU: EB401-50

Manufacturer: Yokogawa
Product No.: EB401-50
Product Type: Power Supply Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 600g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa EB401-50 ER Bus Interface Master Module

Configured for power distribution and regulation in distributed control networks, the Yokogawa EB401-50 (EB401-50 Power Supply Module) provides direct physical/electrical execution of stable DC voltage delivery for FCS backplanes.

Hardware Specifications

Parameter	Specification
Model	EB401-50
Brand	Yokogawa
Origin	Not Specified
Weight	0.6 kg
Dimensions	125 x 130 x 40 mm
Operating Temp	0 deg C to 55 deg C
Power Consumption	250 W
Output Voltage	5 V DC (Regulated)
Output Current	50 A

Process Control and DCS Connectivity

The EB401-50 serves as the primary energy source for CENTUM VP and CS 3000 platform components, ensuring consistent backplane potential. It maintains operation through a 4-20 mA HART loop protocol environment by isolating power rails from logic circuits, which aids in preserving channel-to-channel isolation across sensitive DCS I/O modules. The module supports parallel dual-redundant power configurations to prevent system-wide downtime during individual unit failure. Its active diagnostic circuitry monitors output health, providing automated feedback to the controller regarding over-voltage or thermal stress conditions to ensure process continuity.

Frequently Asked Questions (FAQ)

Q: Does the unit support hot-swapping during normal system operation?

A: Yes, you can replace a redundant power module while the system is online, provided you have configured the second module to assume the full load before removing the faulty unit.

Q: How does the system handle dual-redundant power distribution?

A: You must install two modules in parallel slots within the FCS cabinet. The modules synchronize their output voltages automatically to share the total current demand of the backplane.

Field Installation Guidelines

Mounting Protocols: Secure the power module into the designated rack slot of the FCS cabinet. Ensure the mounting screws seat firmly to establish a low-impedance common ground with the chassis.
Input Power Wiring: Connect the 100-240 V AC supply using dedicated circuit protection. Route input power wiring through separate conduits from communication and signal cables to minimize electromagnetic coupling.
Redundancy Configuration: Verify that both redundant units exhibit identical voltage output settings prior to connecting them in parallel to avoid circulating currents between modules.
Thermal Management: Install the unit in a well-ventilated cabinet. If the ambient temperature nears 55 deg C, you must maintain clear airflow paths around the heat sinks to prevent thermal-induced output derating or premature protection shutdowns.

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