The Yokogawa PW481-50 serves as the primary power source for Field network I/O (FIO) components. Specifically, this module converts standard AC line voltage into regulated power for the system backplane and all installed I/O modules. As a "Standard Type" without explosion protection, it provides a cost-effective solution for safe-zone control room environments. Furthermore, the unit features an exclusive connector interface at the rear. This design ensures a robust, vibration-resistant connection to the motherboard, which significantly improves overall system reliability.
In terms of electrical specifications, the module manages a specific input range of 100 to 120 V AC with a ±10% tolerance. Specifically, the internal circuitry filters frequency fluctuations of 50/60 Hz ± 3 Hz to maintain steady downstream voltage. Meanwhile, the module supports a maximum power consumption of 200 VA, providing sufficient energy for fully populated I/O nodes. Therefore, even when high-draw communication modules are present in the same chassis, the PW481-50 maintains consistent performance without overheating.
Specifically, the Yokogawa PW481-50 weighs approximately 1 kg, making it a manageable and sturdy component for industrial racks. The module is the "Basic Type" (Suffix 0), focusing on foundational power regulation without unnecessary complex configurations. Moreover, the lack of explosion protection (Suffix 5) indicates that maintenance teams should install this unit in safe industrial areas or within appropriately rated enclosures. Because of its standard weight and dimensions, it integrates seamlessly into the power slots of existing FIO node units.
First, verify that the local input voltage matches the 100-120 V AC requirement before connecting the power source. Next, slide the Yokogawa PW481-50 into the designated power supply slot of the FIO node unit until the exclusive connector seats firmly. After that, tighten the front panel retaining screws to ensure a solid mechanical lock and proper electrical grounding. Finally, apply power to the unit and check the status indicator LEDs. These lights confirm that the module is correctly outputting regulated voltage to the system backplane.
1 x Yokogawa PW481-50 Power Supply Module
Factory-Sealed Anti-Static Protective Wrap
Shipping Carrier: Fedex, UPS, DHL
Q: What is the maximum power consumption of the PW481-50? The module consumes a maximum of 200 VA when the connected node unit operates at its full I/O capacity.
Q: Can I use this module with 220V AC input? No, the Yokogawa PW481-50 is strictly for 100-120V AC; for 220V applications, you must use the PW482 model instead.
Q: Does the module require a special cable for connection? Specifically, the module uses an exclusive connector on its rear face to mate directly with the FIO node backplane.
Q: Is this module suitable for hazardous locations? No, the Suffix 5 indicates that this is a standard type with no explosion protection, designed for use in safe locations.
Q: Can I install two of these for redundancy? Yes, most Yokogawa FIO node units allow for two Yokogawa PW481-50 modules to provide 1+1 power redundancy.
| Brand Name | Yokogawa Electric |
| Model No. | PW481-50 |
| Product Type | Power Supply Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
