Product Summary
The Flexem FR-D0808N delivers a compact digital mixed I/O solution. This module combines 8 bidirectional input points with 8 NPN output channels. Engineers gain a space-saving unit that handles diverse sensor and actuator signals. Its slim 18mm width fits perfectly into tight cabinet layouts. The module operates reliably on a standard 24VDC power supply.
Theme Option A: Product Procurement & Buyer Guide
Procurement managers value the Flexem FR-D0808N for its unified I/O design. This module simplifies your BOM by combining input and output functions. You eliminate the need for separate input and output cards. The unit supports both NPN and PNP sensors on its input side. This flexibility allows you to standardize one module across different machine types. The rated input voltage spans from 0 to 28.8V DC. This wide range ensures compatibility with various industrial sensor outputs. Each input channel draws a consistent 7mA current. This low draw reduces overall power supply loading in your system.
The output stage features eight NPN sink outputs for direct actuator control. Each output channel handles a rated current of 0.5A. The module groups outputs with a total of 0.5A per group. You must consider this grouping when wiring multiple high-current loads. The output voltage range operates from 19.2 to 28.8V DC. This tight tolerance guarantees stable switching for your solenoids and relays. The entire module weighs only 65 grams. Its dimensions measure 111mm high, 18mm wide, and 76mm deep. This lightweight profile reduces strain on DIN rail mounting brackets.
You should compare the FR-D0808N against the FR-D0808P variant. The key difference lies in the output transistor type. The N model uses NPN sinking outputs for common industrial loads. The P model uses PNP sourcing outputs for specific applications. Choose the NPN version for standard sink-logic control systems. This selection aligns with most PLC input modules and legacy wiring practices. The bidirectional input feature on both models simplifies wiring. You connect any NPN or PNP sensor without changing the module hardware.
Theme Option B: Step-by-Step User & Installation Guide
Begin your installation by mounting the Flexem FR-D0808N onto a standard DIN rail. Align the module's rear groove with the rail top edge. Push the bottom until you hear a firm click. Secure the module by tightening the end bracket screws. The 18mm width allows you to place multiple units side by side. Leave 10mm clearance above and below for airflow.
Next, connect the 24VDC power supply to the module's input terminals. Verify the voltage stays within the 19.2 to 28.8V DC range. Use a multimeter to confirm the supply voltage before powering the module. Wire your NPN or PNP sensors to the eight input channels. Each input accepts a 7mA current draw at 24VDC. The bidirectional design automatically detects the sensor type. You do not need to set any jumpers for sensor compatibility.
Wire your actuator loads to the eight NPN output channels. Each output sinks a maximum of 0.5A continuously. Remember the 0.5A per group limitation when wiring multiple outputs. Connect the common ground wire to the module's output return terminal. Use a fuse or circuit breaker rated for 0.5A per group for protection. Secure all wires with the module's screw terminals. Torque each screw to 0.5 Nm for reliable connections.
Power on the system and check the module's status LED. A steady green light indicates normal operation. Test each input channel by activating your connected sensors. Verify the corresponding output channel switches correctly. Use a logic analyzer to confirm timing if needed. The module requires no software configuration for basic operation. Your PLC or controller handles all I/O mapping through the backplane bus.
