Configuring an axis, Selecting a scale

6.3 Configuring an axis

The NextMove ES is capable of controlling 4 stepper and 2 servo axes. This section describes the basic setup for both types of axis. Commands typed in the Command window have immediate effect - they do not need to be separately downloaded to the NextMove ES.

6.3.1 Selecting a scale

MintMT defines all positional and speed related motion keywords in terms of encoder quadrature counts (for servo motors) or steps for stepper motors. The number of quadrature counts (or steps) is divided by the SCALEFACTOR allowing you to use units more suitable for your application. The unit defined by setting a value for scale is called the user unit (uu).

Consider a servo motor with a 1000 line encoder. This provides 4000 quadrature counts for each revolution. If SCALEFACTOR is not set, a MintMT command that involves distance, speed, or acceleration may need to use a large number to specify a significant move. For example MOVER=16000 (Move Relative) would rotate the motor by 16000 quadrature counts - only four revolutions. By setting a SCALEFACTOR of 4000, the user unit becomes revolutions. The more understandable command MOVER=4 could now be used to move the motor four revolutions.

The same concept applies to stepper motors, where the scale can be set according to the number of steps per revolution. Typically, this would be 200 for a motor with a 1.8° step angle, or 400 if driven in half step mode. By setting a SCALEFACTOR of 200 (or 400 if driven in half step mode), the user unit becomes revolutions.

In applications involving linear motion a suitable value for SCALEFACTOR would allow commands to express values in linear distance, for example inches, feet or millimetres.

1.In the Toolbox, click Setup, then click the Parameters icon.

2.Click the Scale tab.

3.Click in the Axis drop down box to select the axis. Each axis can have a different scale if required.

4.Click in the Scale box and type a value.

6-6 Operation

MN1928

MN1928 specifications

The Baldor MN1928 is a highly regarded motor designed for a variety of industrial applications, known for its durability and efficiency. This motor is part of Baldor’s extensive range of products, which are engineered to meet the demands of heavy-duty operations.

One of the key features of the Baldor MN1928 is its robust construction. Built with high-quality materials, this motor is designed to withstand harsh environmental conditions often found in industrial settings. The steel frame is not only resilient, but it also enhances the motor's cooling capabilities, enabling it to perform effectively over extended periods.

The MN1928 is equipped with advanced technologies that optimize its performance. One notable technology is the use of high-efficiency induction motor design. This reduces energy consumption significantly and contributes to lower operational costs. The motor is also designed with a continuous duty rating, making it capable of running for long hours without compromising its functionality or lifespan.

In terms of characteristics, the Baldor MN1928 features a reliable ball bearing design, which minimizes friction and wear, ensuring smoother operation and increased reliability. With a horsepower rating that suits a range of applications, it provides the necessary torque and speed to power various machinery effectively. The multi-voltage design allows for versatile installation options, accommodating different electrical systems while ensuring efficient performance.

Another important characteristic of this motor is its ease of maintenance. The design allows for straightforward access to components, making it simple for technicians to perform routine checks and maintenance. This is particularly beneficial in industrial settings where downtime can be costly.

Safety is also a priority in the design of the Baldor MN1928. Equipped with thermal overload protection, it prevents overheating, reducing the risk of damage caused by excessive temperatures during operation. Additionally, the motor complies with various industry standards, ensuring safe operation within diverse environments.

In summary, the Baldor MN1928 stands out as a reliable choice for industrial applications, offering a combination of durability, efficiency, and advanced technology. Its robust construction, high-efficiency design, and safety features make it a preferred option for many enterprises seeking dependable motor solutions.