Product Overview

The Yokogawa ST4*D module is a high-density digital output module designed by Yokogawa Electric Corporation. This module’s primary function is to receive binary control signals from a Distributed Control System (DCS) and transmit them as electrical signals to field devices. It is ST4-compatible, making it a widely used form factor for high-density DCS output modules. With isolated channels, the ST4*D helps protect the control system from field-side electrical interference, ensuring stable and safe operation in industrial environments.

Application and Connectivity

The Yokogawa ST4*D module is primarily used to control discrete field devices in the plant, including actions like opening or closing solenoid valves, starting or stopping motor starters, and illuminating indicator lights. The module connects via the KS2 dedicated cable, which simplifies the wiring process between the module and terminal board, ensuring proper signal routing and termination.

Frequently Asked Questions (FAQ)

Q: Is the Yokogawa ST4*D module a digital input or output card?
A: The ST4*D is a Digital Output Module, typically 32-channel, designed to send control signals to field equipment.

Q: What is the maximum load current per channel for the ST4*D?
A: The output contact rating specifies a maximum load current of 100 mA at 30 V DC for both inductive and resistive loads.

Q: What is the typical lead time for shipping this module?
A: We generally ship from our stock within 3 days to 2 weeks, depending on the size and complexity of your order.

Q: What is the benefit of the isolated channels on the ST4*D?
A: The 32 isolated channels provide electrical separation, protecting the DCS control electronics from high voltages and noise generated on the field side.

Q: Is the Yokogawa ST4*D module brand new and original?
A: Yes, we guarantee the Yokogawa ST4*D module is brand new, original factory-sealed stock, ensuring authenticity and adherence to Yokogawa standards.

Q: What is your return policy if I encounter a quality issue?
A: We offer a 30-day return window if the product has any quality-related issues, using reliable logistics partners such as DHL for shipping.