Product Description

The PW482-10 S2 is a mission-critical power supply module designed for Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). This variant is specifically used in Field Control Units (FCU), FIO Node Units, and Optical ESB Bus Repeater Units, providing high-stability regulated power.

Part of the PW482 series, it is optimized for high-voltage AC environments, converting input power into precise DC voltages for internal processor logic and field-side transmitter excitation.

Technical Specifications

• Model / Suffix: PW482 (PW482-10 S2)

• Input Voltage Range: 220–240 V AC (±10%)

• Input Frequency: 50/60 Hz (±3 Hz)

• Power Consumption: 230 VA (approx. 120 W)

• Output Voltages:

• System Logic: 5.1 V DC at 7.8 A

• Field / Transmitter Power: 24 V DC at 1.7 A

• Redundancy: Supports dual-redundant configuration when two identical modules are installed in slots P1 and P2

• Physical Protection: Style S2 indicates updated components and refined electrical characteristics over previous revisions

• Mounting Interface: Exclusive backplane connector; not for generic DIN-rail use

• Wiring: M4 screw terminals for grounding and stable power connections

System Integration & Reliability

• Ensures clean, isolated 24 V power to field instruments (transmitters, transducers, meters)

• Heavy-duty design for harsh industrial environments, including oil & gas and chemical plants

• Duplexed (redundant) operation: Modules share load and allow hot-swapping, enabling maintenance without interrupting Field Control Station (FCS) operation

Technical FAQ

Q: What does the "S2" style code signify?
A: It represents a specific hardware revision. While functionally compatible with other PW482 modules, Yokogawa recommends using identical style codes in a dual-redundant pair for perfectly matched load-sharing.

Q: Can this module be used with 110 V AC supply?
A: No. The PW482-10 S2 is rated for 220–240 V AC. For 110 V AC systems, the PW481 model should be used instead.