YOKOGAWA PW502 Power Supply Module
Configured for high-availability power distribution in CENTUM VP and CENTUM CS 3000 network platforms, the YOKOGAWA PW502-S1 (PW502 Power Supply Unit) provides direct physical and electrical execution of regulated 24 VDC power delivery.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PW502-S1 |
| Brand | YOKOGAWA |
| Origin | Japan |
| Weight | 0.8 kg |
| Dimensions | 2.5 x 12.7 x 20.3 cm |
| Operating Temp | 0 deg C to +60 deg C |
| Power Consumption | Not specified |
| Output Voltage | 24 VDC |
| Output Current | 5.0 A continuous |
Process Control Connectivity and Isolation
The module manages power regulation within the Field Control Station (FCS), interfacing directly with the backplane to deliver stable voltage to processors and I/O modules. To maintain system uptime, the design supports 1:1 dual-redundant configurations, allowing parallel load sharing and bumpless failover in the event of an input voltage loss or internal fault. The unit incorporates integrated protection circuits against overvoltage, overcurrent, and thermal-induced shutdown. Galvanic isolation between the AC input and DC output stages ensures that input transients do not propagate to the sensitive control circuitry, maintaining deterministic operation in demanding industrial electrical environments.
Frequently Asked Questions (FAQ)
Q: Does the PW502-S1 support hot-swapping in a redundant configuration?
A: Yes, the module is engineered for hot-replacement when deployed in a 1:1 redundant setup. Personnel must verify that the secondary power supply has assumed the load via the system diagnostics before removing the faulty unit to ensure continuous operation of the control bus.
Q: Are there any specific requirements for cabinet ventilation given the cooling method?
A: The PW502 relies on natural convection cooling. While it eliminates the mechanical failure risks associated with moving fans, it requires sufficient vertical clearance around the module to allow for proper airflow; avoid installing high-heat dissipation components directly below the unit.
Field Installation Guidelines
- Mounting: Ensure the power supply rack is securely grounded. Align the PW502 with the baseplate guide rails and insert the module until the rear backplane connectors are fully engaged. Secure the module using the integrated locking mechanism to prevent movement.
- Input Wiring: Connect the 100–240 VAC supply to the module terminals. Ensure that a properly sized circuit breaker or fuse is installed upstream to protect against line-side faults. Use shielded power leads if required by local electrical safety standards to reduce electromagnetic emission.
- Redundant Setup: When installing two units in a redundant pair, ensure both modules are connected to independent AC power sources where possible to mitigate the risk of a single power circuit failure resulting in a total system trip.
What's clients say about us
Excellent Emergency Support!
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Mark Thompson
Maintenance Manager, USAReliable Source for New Spares
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
Robert Hoffmann
Engineering Lead, GermanyTop-tier Service and Quality
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.
Lucas Müller
Operations Director, GermanyRelated Products
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Guide
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