PW484-11 Yokogawa Power Supply Module

Configured for 24 V DC input power distribution in Yokogawa control system units, the Yokogawa PW484-11 (PW484 Power Supply Module) provides a 24 V DC supply interface with a rated current of 5.5 A. The module uses an exclusive connector and supports installation in P1-P2 power supply slots. Yokogawa documentation identifies PW484 as the 24 V DC input power supply model for applicable FCU, FIO Node Unit, and Optical ESB Bus Repeater Unit configurations.

Suffix Breakdown & Model Matrix

The supplied ordering information identifies PW484 as the base model and lists separate suffix options. However, the supplied data does not explicitly define PW484-11 as a combined "-1" and "1" suffix configuration. Therefore, this page does not assign an unverified suffix interpretation to the full model.

Yokogawa documentation confirms that PW484 is the 24 V DC input version and that PW481, PW482, and PW484 occupy the power supply module position in the applicable system units.

Hardware Specifications

Yokogawa specifies 24 V DC and 5.5 A for the PW484 power supply option, corresponding to approximately 120 W input power. The manufacturer also specifies dual-module installation for redundant configurations.

Yokogawa DCS Power Supply and Redundancy

The PW484 operates as a power supply module within the Yokogawa DCS hardware architecture. It accepts 24 V DC input and supplies power through the module's dedicated interface.

For redundant installations, Yokogawa specifies two identical power supply modules. The modules install in slots P1 and P2; for a single configuration, the power supply module installs in P1.

Furthermore, Yokogawa lists PW484 for FCU, FIO Node Unit, Optical ESB Bus Repeater Unit, and associated base-plate configurations. Therefore, installation must match the hardware configuration specified for the target unit.

The Yokogawa documentation also identifies PW484 as the 24 V DC power supply module and specifies 5.5 A power consumption for the 24 V DC configuration.

Frequently Asked Questions

Q: What input voltage does the PW484 use?
A: The PW484 uses a 24 V DC input supply with a specified tolerance of +/- 10%.

Q: Can the PW484 operate in a redundant configuration?
A: Yes. Yokogawa specifies two identical power supply modules for dual-redundant operation, installed in slots P1 and P2.

Q: What is the specified current and power level for the PW484?
A: The specified 24 V DC input current is 5.5 A, corresponding to approximately 120 W.

Field Installation Guidelines

• Verify the installed module model before applying DC input power.
• Confirm that the source provides 24 V DC within the specified +/- 10% input range.
• Install the module only in the applicable Yokogawa hardware unit.
• For dual redundancy, install two identical power supply modules in P1 and P2.
• For a single power supply configuration, Yokogawa specifies slot P1.
• Connect the dedicated power interface using the specified exclusive connector.
• Verify connector engagement before energizing the system.
• Route DC power wiring separately from sensitive analog and communication wiring where practical.
• Observe the equipment grounding and shielding requirements defined by the applicable Yokogawa installation documentation.
• Check supply polarity before energization.
• Verify the downstream system load against the specified 5.5 A power supply requirement.
• Do not infer explosion-protection or G3 environmental characteristics from the base PW484 model alone; confirm the complete ordering suffix before installation.