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IO-LC3 – Unitronics 3 Loadcells,2 output exp. module
Unitronics IO-LC3 load cell expansion module featuring 3 load cell inputs, 1 digital input, 2 digital outputs and 24-bit Sigma-Delta conversion for industrial weighing and force measurement applications.
£324.28
Why Choose the Unitronics IO-LC3 Load Cell Expansion Module?
The Unitronics IO-LC3 is a high-precision load cell and strain gauge I/O expansion module designed to provide advanced weighing and force measurement functionality for compatible Unitronics Vision and OPLC controllers. Featuring 3 independent load cell inputs, 1 digital input and 2 digital outputs, the module is ideal for multi-channel weighing systems, batching equipment, filling machines and industrial process control applications.
Designed specifically for industrial weighing applications, the IO-LC3 delivers exceptional measurement accuracy through its 24-bit Sigma-Delta A/D conversion technology. The module supports both load cells and strain gauge sensors, enabling reliable monitoring of weight, force and tension across multiple measurement points within a single automation system.
With support for up to 3 load cell channels, integrated digital I/O, configurable setpoint functionality and DIN rail mounting, the IO-LC3 provides a complete weighing solution that integrates seamlessly into Unitronics PLC platforms.
Key Advantages
- Provides 3 independent load cell inputs for multi-channel weighing applications.
- Features a 24-bit Sigma-Delta A/D converter for highly accurate measurements.
- Includes 1 PNP digital input and 2 PNP digital outputs.
- Supports load cell and strain gauge sensors.
- Configurable software-based setpoint control functionality.
- Suitable for weighing, batching, filling and force measurement systems.
- Compact DIN rail-mounted design simplifies installation.
Key Features
- Unitronics IO-LC3 load cell expansion module.
- 3 load cell / strain gauge inputs.
- 1 PNP digital input.
- 2 short-circuit protected PNP digital outputs.
- 24-bit Sigma-Delta analogue conversion.
- Software-selectable AC or DC excitation.
- Support for multiple 350Ω load cells.
- Integrated communication and I/O status LEDs.
- DIN rail or panel mounting options.
Advanced Multi-Channel Weighing and Measurement
The IO-LC3 is engineered for applications requiring simultaneous monitoring of multiple load cells. Its three independent load cell channels allow automation engineers to build sophisticated weighing systems for tanks, silos, batching stations and material handling equipment while maintaining exceptional measurement accuracy.
The integrated digital input and outputs enable local process control functions, including programmable setpoint actions and automation responses. This makes the module particularly effective in filling, dosing and batching systems where measurement and control must operate together seamlessly.
Typical Applications
- Multi-scale weighing systems.
- Batching and dosing equipment.
- Tank and hopper weighing.
- Filling and packaging machinery.
- Force and tension measurement.
- Material handling systems.
- Process control applications.
- OEM machine building projects.
Technical Specifications
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| Signal Type / Function | Load Cell / Strain Gauge | |
|---|---|---|
| Product Series | Unitronics Vision I/O Expansion | |
| Coil / Supply Voltage | 10.2–28.8 V DC | |
| Digital Inputs | 1 | |
| Digital Outputs | 2 | |
| Output Type | Transistor | |
| IP Rating | IP20 | |
| Product type | Load cell I/O expansion module | |
| Load cell inputs | 3 | |
| Digital inputs | 1 PNP input | |
| Digital outputs | 2 short-circuit protected PNP outputs | |
| A/D conversion | 24-bit Sigma-Delta | |
| Conversion period | 12.5 ms (80 Hz) | |
| Signal range | -20 mV to +20 mV nominal | |
| Offset compensation | ±77.5 mV adjustable | |
| Excitation voltage | 5 V nominal | |
| Excitation current | Up to 200 mA | |
| Supply voltage | 10.2-28.8 V DC | |
| Nominal operating voltage | 12 / 24 V DC | |
| Maximum internal power dissipation | 1.2 W | |
| Protection rating | IP20 / NEMA 1 | |
| Operating temperature | 0°C to +50°C | |
| Dimensions (W × H × D) | 80 × 93 × 60 mm | |
| Weight | Approximately 300 g | |
| Mounting type | DIN rail or panel mounting |
Frequently Asked Questions
What is the Unitronics IO-LC3 used for?
The IO-LC3 is a load cell expansion module used to connect up to three load cells or strain gauge sensors to compatible Unitronics PLC systems for weighing and force measurement applications.
How many load cell inputs does the module provide?
The IO-LC3 provides three independent load cell inputs for multi-channel weighing and measurement systems.
What resolution does the module offer?
The module uses a 24-bit Sigma-Delta A/D converter to deliver highly accurate weight and force measurements.
Does the IO-LC3 include digital I/O?
Yes, the module includes 1 PNP digital input and 2 short-circuit protected PNP digital outputs with optional software-configurable setpoint actions.
How is the module installed?
The IO-LC3 can be mounted on a standard 35mm DIN rail or directly onto a control panel using screw mounting.
Trusted by Weighing and Automation Professionals
Unitronics load cell expansion modules are widely used in industrial weighing, batching and process control systems where accurate measurement, reliable control and seamless PLC integration are essential for operational efficiency.
