Gradually increase the P-gain until the system reacts quickly without oscillating.
The controller receives signals from Mitsubishi’s LX-TD, LX-TD-928, or LX7-F type tension detectors and generates control outputs accordingly. It produces a for magnetic powder clutches/brakes or magnetic hysteresis clutches/brakes, as well as a 0–5 V torque command voltage for AC servo amplifiers.
To ensure proper operation of the Mitsubishi Tension Controller LE-30 CTA, it is essential to follow the installation and configuration procedures outlined in the manual. The following steps should be taken:
If the output percentage is consistently at 100%, your brake or clutch may be undersized for the application. mitsubishi tension controller le 30 cta Manual
Wire the excitation voltage (+/-) and signal lines (+/-) exactly as labeled on the terminal block.
The manual thoroughly describes the front panel components:
After March 31, 2031, Mitsubishi Electric will no longer accept repair requests. Even within the repair support period, repairs may be impossible if parts are unavailable. Users are strongly encouraged to plan for replacement with the LE7‑40GU‑L or an alternative tension control solution. Gradually increase the P-gain until the system reacts
Given that this is a discontinued product, here are the legitimate sources (as of 2025):
Complete Guide to the Mitsubishi Tension Controller LE-30CTA: Setup, Wiring, and Troubleshooting
Current Output: 0–24V DC (up to 3A) directly drives magnetic powder clutches and brakes. To ensure proper operation of the Mitsubishi Tension
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Proportional output to powder clutch/brake amplifiers. 2. Installation and Wiring
Turn off power and check sensor continuity with a multimeter. Ensure sensor wires are securely attached to terminals A1-A4 and B1-B4. Er2: Memory Fault (EEPROM Error)
Proper wiring is critical to eliminate signal noise and prevent damage to the internal circuitry. Always isolate power before wiring the unit. Power and Grounding
If you need help resolving a specific issue with your unit, please let me know: What or specific behavior are you seeing? What type of material are you processing?