Power Supply Module | Yokogawa PS-502-01

Product Description

Configured for converting 24 VDC field supply into isolated regulated logic power, the Yokogawa PS-502-01 (PS-502 Power Supply Module) provides direct electrical execution within Yokogawa industrial control hardware platforms.

Hardware Specifications

Process Control Power Conversion and Isolation

The Yokogawa PS-502-01 performs DC power conversion by separating field supply voltage from logic supply circuits through galvanic isolation. The module accepts an unstabilized 24 VDC field input and generates a regulated 20 VDC logic output for connected control electronics.

Furthermore, the output circuit integrates serial diode configuration for parallel operation. This design allows multiple power supply modules to support increased current demand or redundant power arrangements. Load sharing can be adjusted through the front-panel voltage trimmer.

The module also provides an additional unregulated 24 VDC output. This output receives protection from the input fuse and supports external field power requirements. Two red LEDs indicate input voltage presence and regulated output voltage status.

For Yokogawa process control installations, the module maintains separated power domains with channel-to-channel isolation characteristics. The isolated architecture supports stable DC distribution for control cabinets using Yokogawa DCS hardware where electrical separation between field circuits and logic circuits is required.

Frequently Asked Questions

Q: Does the PS-502-01 support parallel connection for redundancy?

A: Yes. The PS-502-01 output includes a serial diode arrangement that allows parallel connection for current increase and redundant power configurations.

Q: What protection functions are included on the regulated 20 VDC output?

A: The regulated output provides electronic overcurrent protection using current fold-back and overvoltage protection using a crowbar circuit.

Q: Can the regulated output voltage be adjusted?

A: Yes. The 20 VDC regulated output can be fine adjusted through the front-panel trimmer.

Field Installation Guidelines

• Install the PS-502-01 inside an appropriate control cabinet with proper mechanical support for the single euro 6TE format.
• Verify that the 24 VDC field supply polarity matches the module input terminals before energizing the circuit.
• Maintain separation between field power wiring and sensitive signal wiring to reduce electrical interference.
• Connect cabinet grounding according to industrial control panel grounding practices and EMC requirements.
• Confirm LED status indicators after installation to verify input voltage presence and regulated output operation.
• When installing multiple modules in parallel, adjust output voltage settings according to the required load-sharing configuration.
• Use suitable wiring practices for DC power circuits, including correct conductor sizing and secure terminal connections.

Other Attributes

• Country of Origin: Japan/Singapore
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of YOKOGAWA

Our Competitive Brands

• - ABB Advant-800xA，Advant OCS，Bailey Infi 90 and Net 90，H&B Freelance 2000，DSQC Robots，IGCT / IGBT
• - GE General Electric Field Control, Genius I/O, QuickPanel, RX3i PacSystem, Series 90, Series 90, Series VersaMax
• - Allen Bradley Allen-Bradley SLC500, MicroLogix, CompactLogix, ControlLogix, PLC-5, Panel View,
• - Bently Nevada 3300 System, 3500 System
• - Honeywell 7800 Series, FSC, IPC, Mxopen, TDC 2000, TDC 3000, Experion PKS(C200,C300)
• - Yokogawa Centum CS - Centum VP, Centum XL - micro XL, FA-M3, ProSafe-PLC
• - Ovation, Foxboro, EPRO, Emerson DeltaV, Fuji, Siemens, HIMA, Prosoft, Invensys Triconex, ICS TRIPLEX, Woodward, Bachmann, Schneider

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