Overview
The I20 Double Sheet Detection system is designed for use in flexible manufacturing systems within the sheet processing industry. It aims to prevent damage to presses and other machinery by detecting multiple sheets being fed simultaneously. The system is suitable for magnetic feeder systems and features a calibration process via a Teach-In procedure, a digital display for sheet thickness and operational parameters, and an integrated fieldbus interface.

Specifications
The I20 system is based on the R1000 platform and includes a control unit, a pair of sensors (transmitter and receiver), and sensor cables. It supports up to four pairs of sensors depending on the application requirements. The system operates on a 24 V DC power supply with a power consumption of less than 20 W and is protected under IP65 standards.

Functionality
The system uses eddy current measurement principles to detect sheet thickness. The transmitter generates an electromagnetic field that induces eddy currents in the target sheet, which are then measured by the receiver to determine thickness. The system can monitor over-gauge and under-gauge limits and operating voltage sensor gaps.

Sensor Options
Several sensor pairs are available for different applications, including IS/IE20-30GS, IS/IE42-30GS, and ISQ42S/IEQ42S. These sensors vary in their applicable sheet thickness ranges and nominal sensor distances. All sensors are protected under IP54 standards and are available with quick disconnect cables.

Installation and Configuration
The I20 system can be mounted as a wall enclosure or front panel. It features an opto coupler interface and supports various fieldbus interfaces such as Profibus-DP, ControlNet, DeviceNet, and others. The system's control unit displays LED functions, pushbutton functions, program numbers, material types, nominal thickness, and measurement states.

Technical Data
The I20 system operates within an ambient temperature range of 0°C to 50°C and weighs approximately 1.6 kg. It includes potential-free signal inputs and opto coupler switching outputs with a maximum switching capacity of 50 VAC, 0.15 A, and 0.15 W.

Conclusion
The I20 Double Sheet Detection system is a robust solution for preventing damage in sheet processing applications. Its flexible configuration options and reliable detection capabilities make it suitable for various industrial environments.