The Mitsubishi LE-30CTA is an automatic, high-precision tension controller designed for industrial "roll-to-roll" applications, such as unwinding and rewinding long materials like paper, metallic foil, film, and wire. This Japanese-manufactured device is widely utilized in printing machinery and plastic film production to ensure stable processing by maintaining constant material tension despite changing reel diameters. Key Technical Specifications
The manual exclusively warns about these common mistakes: | Terminal | Signal | Exclusive Warning | | :--- | :--- | :--- | | 1, 2 | AC Power (100-240V) | Do NOT share neutral with a VFD – causes ground loops. | | 3 | Earth Ground | Mandatory for noise immunity. | | 4, 5 | Load Cell Signal (+/-) | Use twisted, shielded pair. Ground shield only at controller end. | | 6, 7 | Excitation Voltage (5V/10V) | Set DIP switch inside before powering on. | | 8, 9 | Analog Output (to brake) | Output impedance: <1k ohm. Do not short to ground. | | 10, 11 | Run/Stop Input (dry contact) | Use a relay, not a solid-state switch. | mitsubishi tension controller le 30 cta manual exclusive
Step 1: Zero Calibration (No Load) With the machine stopped and no web on the rollers, the load cells should read zero. This article serves as an exclusive deep dive
This article serves as an exclusive deep dive into the LE-30CTA, acting as a functional companion to the official manual to help you master setup, wiring, and troubleshooting. 1. What is the Mitsubishi LE-30CTA? The Mitsubishi LE-30CTA is an automatic
Linear counter, ring counter, sampling, and periodic pulse functions Response Time Minimum 25 ns for ON/OFF adjustments Safety Features
This controller is widely utilized in sectors where "roll-to-roll" processing is critical: dl.mitsubishielectric.co.jp Printing & Packaging