12Lf Series Firmware

Firmware Update Notice – mightyZAP 12Lf Series V2.2

This is a V2.2 firmware update intended to improve performance and enhance stability for selected models in the mightyZAP 12Lf series.

Applicable Models for V2.2 Update : Selected 12Lf models only (see below):
1. 12Lf 27 mm stroke seires : 12Lf-75F-27, 12Lf-75PT-27
2. 12Lf 40 mm stroke series : 12Lf-10F-40, 12Lf-10PT-40, 12Lf-55F-40, 12Lf-55PT-40
3. 12Lf 53 mm stroke series : 12Lf-10F-53, 12Lf-10PT-53, 12Lf-55F-53, 12Lf-55PT-53
4. 12Lf 90 mm stroke series : 12Lf-10F-90, 12Lf-10PT-90
Update Version: V2.2
Key Changes: BBug fixes and stability improvements (MODBUS RTU Broadcast bug fix)
Note : All products shipped on or after Feb, 24, 2026 were delivered with the new update already applied.

Before proceeding with the update, please ensure you have the following items ready.

PC Interface: IR-USB02 or IR-USB03
Manager Software: Total Manager Software V0.9.13
- Download New Manager Software / Update Manual

Please read the following precautions carefully to ensure a safe and smooth update.

Equipment testing is required: If the firmware of an actuator already installed in your equipment is updated, the equipment must be tested again to confirm that there are no issues with its operating characteristics.
Select the correct model: Be sure to install the firmware that matches the exact model name of your actuator. If the wrong firmware is installed by mistake, simply update it again using the correct firmware.
Update one actuator at a time: Each actuator must be updated individually. Updating multiple actuators at the same time may cause errors.
Do not disturb wiring during update: During the update process, do not touch the communication or power cables between the PC, interface, and actuator. If a communication error occurs, please refer to the manual and try again.
Calibration procedure changed: For firmware version V2.0 or later, the Stroke Calibration procedure is no longer required after the update is completed.

Please check the model name of your actuator and download the appropriate V2.2 firmware from the link below.

Models not covered by this update should continue using the existing V2.1 firmware.

Resolved an issue where Min/Max Position Calibration data failed to save after a reset. (Saved Min/Max Position Calibration data is now retained even after a reset).
Fixed a save failure issue that occurred after setting the Current Limit.

Major Feature Additions and Improvements
- Expanded Communication Protocol: Added support for the MODBUS RTU protocol (selectable with IR Open Protocol).
- Additional Communication Speed Option: Added 38400 Baudrate.
- Added User Configuration Feature: Start/end points can now be set using the Min/Max Position Calibration feature.
Stability and Convenience Improvements
- Improved Boot-up Stability: Prevents drifting by immediately turning ON with Force Enable upon power-up.
- Ensured Communication Stability: Changed Return Delay to a fixed value dependent on the Baudrate.
- Enhanced System Stability: Stroke Pulse width and Center Difference parameters are now fixed and cannot be changed.
- Simplified Error Indication: The error status display has been simplified from 7 types to 2, with the LED color simplified to solid/blinking RED.
- Improved Configuration Convenience: Changed Compliance Margin to a non-volatile parameter to retain its value even after power is turned off.