DP640 3BHT300057R1 Rotational Speed Meter Module

The DP640 3BHT300057R1 is a tachometer module that belongs to ABB’s Bailey card family. The module

features an S600 I/O speedometer input that operates at 50 kHz and supports a ±13 mA current range and a 24 V dc or 5 V dc voltage range.

A unique feature of this tachometer module is that it can detect direction with a second speedometer input.

In addition, it has an overspeed trip logic function, which outputs the trip signal through a solid state 24 V dc and

dry contacts. It is worth noting that the speedometer input and solid state output are individually optically isolated,

which helps increase the stability and reliability of the system.

The DP640 3BHT300057R1 tachometer module is suitable for a variety of applications where the speed of rotating

equipment needs to be accurately measured and monitored. It can be seamlessly integrated with ABB’s other

industrial automation equipment and systems to provide users with a comprehensive control and monitoring solution.

DP620

The DP640 3BHT300057R1 tachometer module is a key component in ABB’s Bailey card series. The module is

designed to measure and monitor the speed of rotating equipment, providing accurate speed data to ensure the stability and safety of industrial processes.

The module has the S600 I/O speedometer input function, which can receive signals from the speed sensor and

convert them into speed data that can be processed and displayed. It operates at a frequency of 50 kHz and

supports a current range of ±13 mA and a voltage range of 24 V dc or 5 V dc, making it suitable for a variety of different application environments.

In addition, the DP640 3BHT300057R1 tachometer module has some advanced features. It can detect the

direction of rotation with a second speedometer input, which is useful for certain applications where the

direction of rotation needs to be known. In addition, the module has an overspeed trip logic function, which

outputs a trip signal via solid 24 V dc and dry contacts to cut off power or trigger other safety measures to protect equipment and personnel when overspeed is detected.

In order to ensure the stability and reliability of the system, the DP640 3BHT300057R1 tachometer module’s

speedometer input and solid state output are optically isolated. This means that the input and output signals are electrically isolated, reducing the possibility of electrical interference and failure.