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Guaranteed power source availability: Yokogawa ST3*D AS S9181AQ-0 Power source model for industrial control systems

Guaranteed power source availability: Yokogawa ST3*D AS S9181AQ-0 Power source model for industrial control systems

July 04,2025

Introduction

In the current industrial environment, the availability of highly efficient power supply and security system is extremely important. Yokogawa ST3*D AS S9181AQ-0 power supply module provides distributed control system (DCS), power control system (PLC) and other key devices to support the power supply. The model is equipped with an advanced electric power protection system, which has a solid construction design and is a perfect fit for the Yokogawa system.


Demandable power supply capacity for heavy touring

ST3*D AS S9181AQ-0 Capable of determining AC or DC input power supply, convenient output power source, and full control system construction requirements. It can be converted to a high-efficiency electric power source with low power consumption and heat consumption, and is suitable for petroleum, natural gas, chemical industry, electric power, water engineering, and other interconnected production areas.


After the module is assembled, automatic electric power control, flow protection, short path protection, etc. functions are established, and the situation of changing the situation is also maintained. This will reduce the wear and tear and failure rate, and also improve the overall performance of the system. If the module continues to support you, please contact us for further design, and in the event of an immediate change or failure, we will be able to provide uninterrupted power.


Solid construction, long-term security

ST3*D AS S9181AQ-0 Features a large number of industrial specifications such as vibration, vibration, temperature, electromagnetic compatibility (EMC), etc. As a result, the structure is equipped with an internal heating system, which can be operated under high-temperature environments.


The quality of the selected equipment is excellent, the product has a long service life, and its resistance to adverse conditions in the outside world. The status indicator light on the side panel, convenient for daily inspection and fault diagnosis, and the fact that it has low efficiency and low performance (TCO).


Yokogawa's collective ability to adapt and coordinate activities

The electric source module is designed with Yokogawa control system (like CENTUM VP and ProSafe-RS) without any combination. Its immediate connection method allows for a significant reduction in departmental time and standardization of the communication process, making it easier to test and change the process.


Designed to imitate the equipment, it has a unique expansion property, and the ability to use the resource is concentrated or distributed, and the structure of the structure is uneven demand. In addition, the original Yokogawa system was used in the early edition, and the old system was kept for convenience, but there was no demand for large-scale remodeling.


Technical Parameters：
Operating Voltage: 12V DC
Contact Input: OFF signal >100 kΩ, ON signal ≤200 Ω
Voltage Input: OFF signal 4.5–25 V DC, ON signal ±1 V DC, 200 Ω or lower
Input Channels: 32 isolated channels
Input Contact Rating: 5 V DC, 20 mA or more
Input Response Time: 8 ms (for status input)
Minimum ON Detection Time: 20 ms (for pushbutton input)
Minimum ON/OFF Period: 40 ms (25 Hz) (for pushbutton input)
Current Consumption: 170 mA (24 V DC)
Communication Interface: RS-485
Data Transmission Rate: 9600 bps
Relay Outputs: 2
Operating Temperature: –20°C to +70°C
Storage Temperature: –40°C to +85°C
Humidity: 0% to 90% RH
Insulation Resistance: 88 MΩ

Summary

Yokogawa ST3*D AS S9181AQ-0 power supply module is actually a high performance, core part of the power supply and control system. Due to its outstanding electrical protection ability, industrial flexibility, Yokogawa's production system is a perfect combination, and the imitation of the operating system provides constant performance guarantee. In order to improve the system availability, power management ability, and practical business terms, this model is a reliable and practical solution.

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