In a Z-axis actuator, the encoder/sensor is a critical feedback component that precisely measures the linear position, speed, or displacement of the actuator's moving element along the vertical (Z) axis. It provides real-time data to the control system, enabling accurate positioning, motion control, and error correction. This component is designed for integration into machinery and equipment manufacturing applications where precise vertical motion control is required. The encoder/sensor operates by detecting changes in a physical property, such as magnetic field, optical pattern, or capacitance, as the actuator moves. These changes are converted into a digital or analog signal, such as pulses or voltage, proportional to the position or movement, which is then interpreted by a controller. The device is available with a supply voltage of 24 V DC ±10% (reverse polarity protected) and a two-wire loop-powered output signal of 4–20 mA. It offers a resolution of 0.001 mm, with higher resolution available on request, and an accuracy of ±0.01 mm over the full measuring range. The standard measuring range is 50–500 mm, with custom ranges up to 1000 mm available. The operating temperature range is -40°C to 85°C, noting that output may drift below -40°C. The protection class is IP67 per IEC 60529, indicating dust-tight and protection against immersion. The shielded cable length is 2–10 meters, with longer lengths on request. The weight depends on the measuring range and is typically 0.3–0.8 kg. Materials used include aluminum alloy, stainless steel, plastic for housing, glass/quartz for optical elements, and magnetic materials. For any specific application, it is essential to verify model-specific values and standards with the legal manufacturer or supplier, as the listed parameters are reference ranges. The encoder/sensor is a component, not a standalone product, and its performance must be validated within the context of the actuator system.
The encoder/sensor typically operates by detecting changes in a physical property (e.g., magnetic field, optical pattern, or capacitance) as the actuator moves. This change is converted into a digital or analog signal (e.g., pulses, voltage) proportional to the position or movement, which is then interpreted by a controller. The specific sensing technology may vary, but the output signal is standardized to 4–20 mA for compatibility with control systems. The device is designed to provide real-time feedback for accurate positioning and motion control.
