Here is an expanded introduction to the described testing system in English:

The testing system under discussion is built around the Mitsubishi servo amplifier model MR-H10TN, which is part of the MR-H_ACN series and supports CC-Link communication functionality. This servo amplifier has a rated output of 0.1 kW, making it suitable for low-power applications.

The system is composed of two main components: the unit under test (UUT), which includes the servo drive and the motor, and the host computer (upper computer). The host computer transmits speed command signals to the servo drive, which then executes the commanded motion. During operation, both the host computer and dedicated data acquisition circuits collect real-time operational data from the servo system. This data is subsequently stored, analyzed, and displayed for evaluation.

A distinctive feature of this test system is that the motor operates without any load. As a result, compared to other types of servo testing systems, this configuration offers a relatively reduced physical footprint and a simpler measurement and control circuit design. However, this unloaded operation also imposes a significant limitation: the system cannot replicate the actual working conditions of the servo drive. Consequently, this type of test system is typically used only for evaluating the servo system's rotational speed and angular displacement under no-load conditions. It is not suitable for conducting comprehensive or accurate performance testing of the servo drive under real-world load scenarios.