4.5 Other I/O

4.5.1 Stepper control outputs

The stepper control outputs are available across a range of pins, as shown in section 4.2.1.

There are four sets of stepper motor control outputs, operating in the range 10Hz to 1MHz. Each of the step (pulse) and direction signals from the NextMove ES is driven by a ULN2003 open collector Darlington output device.

The ULN2003 has a maximum power dissipation of 900mW at 25°C. The total combined output requirements of DIR0 - DIR2 and STEP0 - STEP2 must not exceed this limit. The maximum current limit for an individual output is 400mA if only one output is in use, reducing to 50mA if all outputs are in use. These limits are for a 100% duty cycle.

DIR3 and STEP3 are sourced from the same ULN2003 device as the DOUT8 - DOUT11 outputs (see section 4.4.2.2), so the current demands of these signals must also be considered.

It is recommended to use separate shielded cables for the step outputs. The shield should be connected at one end only.

NextMove ES

 

 

 

ULN2003

 

Step

a14

STEP0

74AHCT244

 

Output

 

 

 

GND

a3

DGND

Figure 10 - Stepper output - STEP0 output shown

MN1928

Input / Output 4-11

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Baldor MN1928 installation manual Other I/O, Stepper control outputs

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.