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4.5.2 Encoder inputs

The encoder inputs are available on pins a7-a10, b7-b10 and c7-c10. See section 4.2.1.

Two incremental encoders may be connected to NextMove ES, each with complementary A, B and Z channel inputs. Each input channel uses a MAX3095 differential line receiver with pull up resistors and terminators. Encoders must provide RS422 differential signals. The use of individually shielded twisted pair cable is recommended. See section 8.1.10 for details of the encoder power supply.

MicroFlex

 

NextMove ES

 

FlexDriveII

 

‘X7’

 

 

 

Flex+DriveII

 

 

Vcc

 

 

 

 

 

MintDriveII

 

 

 

 

 

encoder output

 

 

 

10k

 

 

 

 

 

 

CHA+

1

b7

CHA+

 

to CPU

 

 

 

 

 

 

 

 

 

120R

MAX3095

CHA-

6

b10 CHA-

 

 

 

 

Twisted pair

 

 

 

 

 

 

 

Vcc

 

 

 

 

 

10k

 

CHB+

2

a7

CHB+

 

to CPU

 

 

 

 

 

 

 

 

 

120R

MAX3095

CHB-

7

c10

CHB-

 

 

 

 

Twisted pair

 

 

 

 

 

 

 

Vcc

 

 

 

 

 

10k

 

CHZ+

3

b8

CHZ+

 

to CPU

 

 

 

 

 

 

 

 

 

120R

MAX3095

CHZ-

8

b9

CHZ-

 

 

 

 

Twisted pair

 

 

 

 

 

a11

DGND

Connect internal shield to DGND.

 

 

Do not connect other end.

 

 

 

 

 

 

a32 Shield

 

 

 

 

Connect overall shield to

 

 

 

 

 

connector backshells /

 

 

 

 

 

shield connections.

 

 

 

Figure 14 - Encoder input 0 - typical connection from a drive amplifier

(e.g. Baldor MicroFlex, FlexDriveII, Flex+DriveII or MintDriveII)

4.5.2.1Encoder input frequency

The maximum encoder input frequency is affected by the length of the encoder cables. The theoretical maximum frequency is 20 million quadrature counts per second. This is equivalent to a maximum frequency for the A and B signals of 5MHz. However, the effect of cable length is shown in Table 2:

4-14 Input / Output

MN1928

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Baldor MN1928 installation manual Encoder inputs

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.