Yokogawa PW482-50 Power Supply Module

The Yokogawa PW482-50, also cataloged as the PW482 Power Supply Module, operates as a dedicated hardware component for 220-240 V AC power distribution and internal rail voltage regulation within Yokogawa CENTUM VP node units.

Suffix Breakdown & Model Matrix

• PW482: Base model designating 220-240 V AC input power supply module with extended temperature capability (-20 to 70 deg C).
• -5: Explosion protection code designating standard type with no explosion protection.
• 0: System configuration code designating basic type specification.

Hardware Specifications

Yokogawa Power Distribution & DCS Channel-to-Channel Isolation

The power supply module converts wide-range AC utility voltage into regulated low-voltage DC backplane rails to energize local control components. Integrated galvanic isolation suppresses line transients and prevents ground loops between primary mains and downstream signal channels, supporting field I/O modules utilizing 4-20 mA HART loop protocol pairs and FOUNDATION Fieldbus communications.

Frequently Asked Questions

Q: What primary AC supply input parameters does the PW482-50 accept?

A: The module operates on a nominal input range of 220-240 V AC at 50/60 Hz to generate internal regulated DC backplane voltages.

Q: What environmental temperature limits apply to the PW482-50 hardware option?

A: This specific variant includes the extended temperature hardware build rated for operation between -20 deg C and 70 deg C.

Field Installation Guidelines

Slide the PW482-50 module into the designated power supply slot of the CENTUM node chassis until the rear connector fully seats into the backplane bus. Fasten top and bottom retaining screws to ensure proper grounding pin contact and prevent module dislodgement under physical vibration. Connect the incoming 220-240 V AC power leads to the designated terminal block, ensuring single-point protective earth (PE) grounding is maintained at the cabinet ground bar.