Erhardt Leimer RK 4080 for KR 60 Control Card

The Erhardt+Leimer RK 4080 is a control board specifically designed for use with the KR 60 actuator in web guiding and tension control applications. Erhardt+Leimer (E+L) is a well-known manufacturer of web guiding, web tension, and web inspection systems, primarily for the textile, film, paper, and nonwovens industries.

Here's a breakdown of what the RK 4080 for KR 60 control card entails:

Key Features and Functionality:

* Digital Control: The RK 4080 leverages digital technology to provide precise control for the KR 60 actuator. This includes a high-resolution infrared edge sensor (such as the FR series, e.g., FR 5503) to ensure exact positioning with minimal over-pinning.

* Position Control: It integrates a position controller that continuously compares target and actual values (e.g., web edge position) and adjusts the KR 60 actuator accordingly. This ensures the web or material is precisely guided.

* Integration with KR 60 Actuator: The RK 4080 is specifically designed to work seamlessly with the KR 60 actuator. The KR 60 is a compact, "all-in-one" actuator with an integrated controller for direct line operation (100 V to 250 V AC). It features a maintenance-free, brushless motor combined with a planetary gearbox, offering high dynamic performance and efficiency.

* Applications: These systems (RK 4080 + KR 60 + sensor) are commonly used in:

   * Tenter guider infeed systems: To ensure textiles are accurately fed into a tenter frame for drying and heat-setting, often involving guiding the selvedge (edge) of the fabric.

   * Precise edge and center cutting: Guiding the web to ensure accurate cuts in processes like textile tube goods with drop stitches.

   * General web guiding: Maintaining consistent web position in various manufacturing processes to prevent material waste, ensure quality, and optimize production.

* Communication: The control card likely uses a CAN bus for communication with sensors and other E+L modules.

* Operation: Operation is typically done via a command device with a text display and/or digital input-output cards.

* Optimization: The system allows for optimization of tenter guider infeed, motor current (actuator dynamics and actuating force), and calibration of current symmetry on motor outputs.

Technical Aspects (referring to the KR 60 actuator and typical E+L control components):

* Nominal Voltage: 100 to 240 V AC, 50/60 Hz

* Nominal Power: Around 350 W

* Nominal Actuating Force: Typically around 1300 N

* Actuating Speed: Max. 120 mm/s

* Protection Class: IP 54

* Ambient Temperature: +10 to +60 °C

Maintenance and Support:

As with many industrial control components, repair services for the Erhardt+Leimer RK 4080 for KR 60 control card are available from specialized electronics repair companies.

In essence, the Erhardt+Leimer RK 4080 for KR 60 control card is a crucial component in E+L's advanced web guiding systems, providing the digital intelligence to precisely control the KR 60 actuator and ensure accurate material handling in industrial applications.