Product Overview

The Flexem SD32T3 is a 32-channel digital input module. It accepts 24 V DC signals from field devices. This module is a core part of the Flexem remote I/O system. It offers reliable signal acquisition for industrial automation. The module uses standard backplane bus communication.

Each channel provides electrical isolation for safety. The SD32T3 supports sink or source input wiring. It is designed for high-density signal collection. This reduces cabinet space and wiring costs. The module is hot-swappable for easy maintenance.

LED indicators show channel status clearly. The module has a compact and rugged housing. It operates in a wide temperature range. The SD32T3 is a cost-effective solution for digital input applications.

Application Scenarios

The Flexem SD32T3 is used in various industrial environments. It monitors limit switches and proximity sensors. It also reads pushbutton and selector switch states. The module is ideal for conveyor system control. It works well in packaging and material handling.

Automotive assembly lines use this module for sensor feedback. It is suitable for machine tool monitoring. The SD32T3 can be deployed in water treatment plants. It is also used in building automation systems. The module fits into standard control cabinets.

Remote terminal units (RTUs) benefit from this module. It is compatible with Flexem bus couplers. The module supports distributed I/O architectures. It is a reliable choice for harsh industrial settings.

Technical Specifications

• Input channels: 32
• Input type: 24 V DC, sink/source
• Input voltage range: 20.4 to 28.8 V DC
• Input current: typ. 3 mA per channel
• Isolation: 500 V AC between channels and bus
• Power supply: 24 V DC via backplane
• Operating temperature: -20 to +60 °C
• Storage temperature: -40 to +85 °C
• Relative humidity: 5% to 95% (non-condensing)
• Dimensions: approx. 100 x 70 x 60 mm
• Weight: approx. 0.15 kg
• Protection class: IP20

Installation & Maintenance Guide

Mount the module on a standard DIN rail. Ensure the backplane connector is clean. Push the module onto the rail until it clicks. Connect the field wiring to the terminal block. Use copper wire with a cross-section of 0.5 to 1.5 mm².

Torque terminal screws to 0.5 Nm. Do not exceed the specified voltage range. The module can be replaced without powering down the system. Pull the release lever to remove the module. Insert a new module and verify LED status.

Regularly inspect wiring for loose connections. Keep the module free from dust and moisture. Do not use solvents for cleaning. Use a dry cloth or compressed air. Follow local safety regulations during installation.

Frequently Asked Questions (FAQ)

What is the primary function of the Flexem SD32T3?

The SD32T3 is a 24 V DC digital input module. It reads on/off signals from field devices. It sends the data to a controller via the backplane bus.

Is the SD32T3 compatible with other Flexem bus couplers?

Yes, the module is designed for Flexem remote I/O systems. It works with standard Flexem bus couplers. Always check the specific coupler documentation for compatibility.

What is the maximum cable length for input signals?

The maximum cable length depends on the signal type and environment. For standard 24 V DC signals, 100 meters is typical. Use shielded cable for longer runs in noisy areas.

Can the SD32T3 be used in safety-related applications?

No, this is a standard digital input module. It is not certified for functional safety. For safety applications, use dedicated safety I/O modules.

What does the LED status indicator show?

Each channel has a green LED. The LED lights when the input signal is active. A flashing LED may indicate a wiring fault. The module also has a power LED.