YOKOGAWA PW484-50 is a 24 V DC input power supply module for designated Yokogawa system units. The PW484 family is used with Field Control Units, FIO Node Units and Optical ESB Bus Repeater Units. The -50 configuration is the standard type with no explosion protection.
FCU / FIO Node Unit / Optical ESB Bus Repeater Unit
Power redundancy
2 identical modules for dual-redundant configuration
Configuration point: PW484-50 is an exclusive module for designated Yokogawa equipment. Its output voltage and current are not specified as general-purpose supply ratings because the PW48 series is not intended to function as a generic standalone power supply.
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System Integration & Installation
PW484-50 can be installed in designated FCU, FIO Node Unit and Optical ESB Bus Repeater Unit configurations. The applicable unit groups include:
FCU
AFV30D / AFV30S
A2FV50D / A2FV50S
A2FV70D / A2FV70S
FIO Node Unit
ANB10D / ANB10S
ANB11D / ANB11S
Optical ESB
ANT10U
Base Plate: A2BE1D / A2BE2D
Power supply modules are installed in slots P1–P2. In a single-module configuration, the module is installed in P1. A dual-redundant arrangement requires two identical modules carrying the same model code.
PW48 SERIES
Same-Series Selection
The PW48 family is divided by input power type. Matching the input voltage and suffix configuration is essential when selecting a replacement module.
PW481
100–120 V AC input
-50 / -51 / -E0 / -E1
PW482
220–240 V AC input
-50 / -51 / -E0 / -E1
PW484
24 V DC input
-50 / -51 / -E0 / -E1
PW484-50 is specifically the 24 V DC / no explosion protection configuration. The PW484-51 adds the G3 option, while PW484-E0 and PW484-E1 are explosion-protection configurations.
CHECK YOUR PW484-50 REQUIREMENT
Need a 24 V DC replacement module?
For a quotation, please provide the Part Number, Quantity, Destination, Required Date, and Machine/System. This allows the requested model and system configuration to be checked before the order is arranged.
01 / Is YOKOGAWA PW484-50 suitable for a system requiring a 24 V DC PW48 power module?
PW484-50 is the 24 V DC input member of the PW48 family. Its specified input is 24 V DC ±10%. It is intended for designated Yokogawa FCU, FIO Node Unit and Optical ESB Bus Repeater Unit configurations, so the host unit and module position should also match the required system configuration.
02 / What is the practical difference between YOKOGAWA PW484-50 and PW484-51 when ordering a replacement?
Both are 24 V DC PW484 configurations, but the suffix defines the configuration. PW484-50 is the standard type with no explosion protection, while PW484-51 is the no-explosion-protection configuration with the ISA Standard G3 option and temperature range of -20°C to 70°C. The suffix should therefore be matched rather than treating the two model codes as interchangeable.
03 / Can YOKOGAWA PW484-50 replace another PW48 module simply because the connector is the same?
No. The PW48 family uses different input-power classes: PW481 is for 100–120 V AC, PW482 is for 220–240 V AC, and PW484 is for 24 V DC. A replacement decision should therefore verify the existing model, input power class, suffix configuration and host equipment instead of relying only on physical interface compatibility.
04 / Can YOKOGAWA PW484-50 be used as a standalone 24 V DC power supply for other equipment?
PW484-50 is not specified as a generic 24 V DC power supply. Yokogawa specifies the PW48 series as an exclusive module for FCU, FIO Node Unit and Optical ESB Bus Repeater Unit applications, and does not specify a generic output-voltage or output-current rating for independent use.
05 / What should be matched when replacing YOKOGAWA PW484-50 in a redundant power configuration?
For dual-redundant operation, Yokogawa specifies installation of two identical modules with the same model code. Therefore, when PW484-50 is used in a redundant pair, the replacement should carry the same PW484-50 model code rather than combining different PW484 suffixes.
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Need PW484-50 or another automation component?
Send the part number, quantity, destination, required date and machine/system for a quotation.
After-Sales Return & Replacement
If you have any question after receiving the items, please contact us within 7 days. Returned items should remain in their original condition and include the specific reason for the return. Once the returned items are received, we will arrange the applicable return or replacement process. The buyer is responsible for all shipping costs incurred during the return or replacement process.
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YOKOGAWA PW484-50
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