Yokogawa PW301 Power Module

Supports hot-swappable redundant configuration. The backup module automatically switches in when the main power supply fails, with a short switching time (millisecond-level) to ensure continuous system operation.

Adopts low-ripple and low-noise design, with high output voltage stability, suitable for precision equipment sensitive to power quality.

Overload Protection: Real-time monitors load power, automatically limiting current or cutting off power when exceeding the rated value to prevent equipment damage.

Short-Circuit Protection: Immediately cuts off output when detecting output short-circuit to avoid burning the power module and backend equipment.

OverTemperature Protection: Equipped with a high-precision temperature sensor, automatically derating operation or alarming when overheated to prevent component aging.

Under-Voltage/Over-Voltage Protection: Adapts to power grid fluctuations, protecting internal circuits during abnormal input voltage.

Supports wide-voltage input of AC 85-264V (compatible with global power grids) or DC input such as DC 24V/48V (optional for specific models).

Conversion efficiency exceeds 90%, reducing energy loss and heat dissipation requirements, suitable for long-term full-load operation.

Equipped with multi-status LED indicators (power normal, fault, redundancy status, etc.) to intuitively display working status.

Supports communication interfaces such as RS-485 and Modbus, enabling upload of power status (voltage, current, temperature, fault information) to PLC or DCS systems for remote monitoring and early warning.

Supports 19-inch rack installation or DIN rail installation, adapting to standard industrial control cabinets for convenient installation and maintenance.

Wide temperature working range (-20℃~+60℃ for some models), adapting to harsh industrial environments, with built-in dust-proof design to extend service life.

The AC input type converts AC to DC through a rectifier bridge, eliminating interference via EMI filtering; the DC input type directly stabilizes and filters the input voltage to ensure stable input.

Adopts PWM (Pulse Width Modulation) technology, converting DC voltage into high-frequency pulses (typically over 100kHz) via MOSFET or IGBT switching tubes. After step-down/step-up by a high-frequency transformer, smooth DC output is obtained through Schottky diode rectification and LC filter circuit.

The output voltage is sampled by resistive voltage division, compared with the reference voltage, and the error signal adjusts the duty cycle of the switching tube via a PI controller to achieve precise stabilization of the output voltage (accuracy up to ±1%).

Redundancy Control: When multiple PW301 modules are connected in parallel, "main-backup current sharing" is achieved through redundant diodes or a dedicated controller, allowing the backup module to take over seamlessly when the main module fails.

Protection Logic: Sensors (current, temperature, voltage) real-time monitor status. In case of abnormalities, the control chip triggers the protection circuit to cut off output and send alarm signals via communication interfaces.

Built-in microprocessor real-time calculates power efficiency, load rate, and temperature trends, supporting parameter configuration (such as output voltage threshold, alarm delay time, etc.) via communication interfaces to enhance system management flexibility.