Safety Modules | Schneider Electric TSXPAY262

The Schneider Electric TSXPAY262 is a standard-format Preventa safety module engineered for integration into the Modicon Premium automation platform. Operating on a 24 VDC nominal supply voltage, the module serves as a central safety interface for emergency stop and machine interlock monitoring. It combines dedicated discrete safety inputs, logic acquisition, and robust volt-free safety relay outputs to ensure high-integrity functional safety compliance up to SIL 3 and ISO 13849-1 Category 4.

Safety Input Architecture and Circuit Monitoring

The module accommodates 12 discrete inputs for emergency stop buttons or limit switches conforming to IEC 61131 Type 1, operating on positive logic. Auxiliary input channels are dedicated to single/double contact selection, feedback loop reading, and reset push-button monitoring. Internal safety acquisition continuously validates enable inputs, output control states, and 24 VDC external supply health to ensure immediate fault detection.

Relay Output Performance and Switching Capacity

Output execution is handled by four normally open (NO) gold-plated, volt-free safety relay contacts designed for high switching reliability. These outputs support operating voltages up to 250 VAC or 127 VDC, delivering a conventional thermal current of 2.5 A and rapid response times under 12 ms. Protection requires external 4 A gG fuses on the safety relay circuits, alongside 1 A gG fuses on the module power supply.

Electrical Connections and System Diagnostics

Physical interfacing utilizes a 44-pin SUB-D connector for safety circuit signals and a removable 6-pin screw terminal block for safety output wiring (supporting wire cross-sections up to 2.5 mm²). Real-time status evaluation is facilitated by 28 local LED indicators covering safety loop diagnostic states. System power consumption remains low, taking under 150 mA at 5 VDC from the backplane and no more than 200 mA from the 24 VDC external supply.

Parameter | Specification

Functional Safety Standards and Certifications

• Safety Standards Compliance: ISO 13849-1 Category 4, IEC 61508 SIL 3, EN/IEC 60204-1, ISO 13850, EN 954
• Product Certifications: CSA, UL, BG

Frequently Asked Questions

Q: What size external fuses are required to protect the TSXPAY262 safety output circuits? A: The safety relay outputs require external short-circuit protection using 4 A gG fuses conforming to IEC 947-5-1.

Q: What are the wire cross-section requirements for the safety output terminal block? A: The removable 6-pin terminal block supports conductors from 0.2 to 2.5 mm² without cable ends, or up to 1.5 mm² with cable ends.

Q: Can the TSXPAY262 operate in high-temperature environments above 40 deg C? A: Yes, while the standard operating temperature range is 0 to 40 deg C without external cooling, it can operate up to 60 deg C when installed with a fan module.