Lauer P090b/L033/01 Interface Module
The Lauer P090b/L033/01 is a multifunctional interface module that serves as a power distribution and signal conditioning unit within Lauer automation architectures. It is designed to supply stable 24 V DC to connected field devices while also providing galvanic isolation for digital and analog signals, enhancing system reliability and noise immunity.
Technical Specifications
Input Voltage: 24 V DC (18–30 V DC), protected against reverse polarity.
Outputs: 4 x isolated 24 V DC outputs, each up to 0.5 A, total 2 A.
Signal Conditioning: 8 x digital inputs (24 V DC, sink/source selectable), 8 x digital outputs (0.5 A, short-circuit protected).
Analog Interface: 2 x 0–10 V or 4–20 mA inputs, 12-bit resolution.
Communication: 1 x RS485 for Modbus RTU, 1 x CAN interface.
Dimensions: 120 x 90 x 60 mm (H x W x D), DIN rail mounting.
Operating Temperature: -10 °C to 55 °C.
Protection: IP20.
Weight: 0.45 kg.
Functional Features
This module provides diagnostic LEDs for each output channel and communication status. It includes overvoltage and overtemperature protection, as well as fuse-less electronic short-circuit protection. The CAN interface supports CANopen protocol for integration with higher-level controllers. The module can be configured using DIP switches or via software, allowing flexible mapping of inputs to outputs.
Installation Guidelines
Mount the P090b/L033/01 on a standard 35 mm DIN rail in a control cabinet. Ensure adequate spacing between modules for heat dissipation. Connect the power supply via screw terminals (1.5 mm² wire). Use shielded cables for analog signals and CAN bus, with the shield grounded at one end. Configure the address and baud rate using the rotary switches on the front panel.
Operating Conditions
The module is intended for indoor use in non-hazardous environments. Ambient temperature should remain between -10 and 55 °C. Relative humidity up to 95 % non-condensing. The unit is resistant to vibration up to 0.5 g (10–150 Hz) and shock up to 15 g (11 ms). The internal power supply efficiency is greater than 85 %.
Applications
Common applications include interfacing sensors and actuators with a central PLC, distributing power to remote I/O stations, and providing isolated signal conversion for legacy equipment. It is particularly useful in small to medium-sized automation projects where space and cost are constraints.
Compliance and Certifications
The P090b/L033/01 is CE compliant and meets EN 61131-2 requirements for programmable controllers. It also carries UL 508 certification. RoHS and REACH compliant.
Ordering Variants
Variants include models with higher output current ratings, additional analog channels, or different fieldbus interfaces such as Profibus DP and DeviceNet.
