Schneider Electric TSXASY800C Modicon Premium Analog Output Module

Description

Managing multiple analog field actuators in harsh environments is the primary function of the Schneider Electric TSXASY800C, a high-density analog output module designed for the Modicon Premium automation platform. This module features 8 non-isolated analog output channels that support both current and voltage configurations, making it highly versatile for variable speed drive control, positioners, and valve actuators. Featuring a conformal coating (signified by the "C" suffix), this module is engineered to resist corrosion and moisture in demanding industrial environments. It delivers high-accuracy signal conversion with a 13-bit resolution for current loops and a 13-bit + sign resolution for voltage signals.

Key Features

• 8 Analog Channels: Independently configurable for current or voltage modes.
• Conformal Coating: Specialized protective treatment of the printed circuit board assembly (PCBA) to withstand corrosive atmospheres and chemical exposure.
• Flexible Signal Ranges: Compatible with +/-10V voltage outputs and 0-20mA or 4-20mA current loops.
• High Resolution: Configured for 13-bit resolution on current outputs and 13-bit + sign on voltage outputs to ensure precise process adjustments.
• Modicon Premium Compatibility: Designed for seamless integration into standard Premium rack systems under PL7 Pro or EcoStruxure Control Expert (Unity Pro) software.

Applications

• Proportional control valve positioning in chemical processing plants.
• Speed reference distribution to variable frequency drives (VFDs) in water/wastewater systems.
• Modulated damper control in industrial HVAC and furnace air supply lines.
• Analog signal transmission to external data acquisition systems and chart recorders.

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

The TSXASY800C is the direct, conformally coated equivalent of the standard TSXASY800. In critical process sectors like petrochemicals or wastewater, the coated model must be deployed to avoid atmospheric electrochemical migration across fine traces. Both models occupy a single slot in the TSXRKY rack and utilize identical software configuration tables in EcoStruxure Control Expert.

Application Pitfalls & Engineering Notes

When configuring channels for 4-20mA loop outputs, verify that the total load impedance on any individual channel does not exceed 600 Ohms. Exceeding this limit will cause loop voltage saturation, preventing the channel from driving the full 20mA. Ensure that the external 24V DC auxiliary power supply supplying the loops is fully stabilized and free of high-frequency noise.

Commissioning & Wiring Tips

Always secure the SUB-D 25 mating connector with its integrated fastening screws to ensure mechanical stability. It is essential to use shielded twisted-pair (STP) cable for all analog signals. The cable shield must be connected to the functional earth (FE) ground terminal at the rack end only; grounding both ends can create ground loops that induce control signal oscillations.

Installation Guidelines