ABB UAA326A04

Description

ABB UAA326A04 is a feature-rich controller motherboard or module,which is usually used in industrial areas such as power plants and steel plants.The following is a detailed analysis of ABB UAA326A04 products:

1.Product Overview

As an excitation controller board,ABB UAA326A04 has excellent performance and reliability and can meet various complex industrial control needs.It is usually used in combination with other ABB controller motherboards or modules to achieve higher levels of control and automation.

2.Main features

Frequency measurement function:

Equipped with two counters,SX and SR,to measure the number of pulses of unknown input frequency and reference frequency source.

The SX counter is used to count the number of pulses(Sx)obtained from the unknown input frequency,while the SR counter is used to count the number of pulses(Sr)from the reference frequency source with a frequency of FREF.

The calculation formula of the frequency value(Fx)is:Fx=FREF×Sx/Sr.

Counter specifications:

The SX counter is implemented by a 24-bit up/down counter(23 bits+sign).

The SR counter is implemented by a 24-bit up counter.

Measuring period:

The measuring period can be determined in two different ways:by a measuring interval timer or by a comparator function for coincidence.

The user can select a suitable filter time(integration time)according to the needs of the application,which is achieved by varying the measuring interval.

Digital output function:

It can be configured in four different ways to meet different control needs.

The digital output DO can be activated when a coincidence occurs and activated or deactivated after a configurable pulse length.

Register function:

During the measurement,the SX and SR registers remain in a”frozen”state until a freeze disable command is received from the controller.

The pulse accumulation in the SX and SR counters will continue during the period when the SX and SR registers are frozen.

Overflow detection:

The reference counter(SR)has an overflow detection function.

If no input pulses are detected within 4.3 seconds,the SR overflow will be activated and the CPU will set the frequency value to zero.

3.Application Scope

ABB UAA326A04 is widely used in various industrial automation and control fields,such as CNC machinery,metallurgy,petroleum gas,petrochemicals,chemicals,paper printing,textile printing and dyeing,machinery,electronic manufacturing,automobile manufacturing,plastic machinery,electricity,water conservancy,water treatment/environmental protection,municipal engineering,boiler heating,energy and power transmission and distribution,etc.

4.Product Advantages

High performance:It has powerful computing power and frequency measurement functions,and can respond quickly to various control instructions.

High reliability:It adopts high-standard design and manufacturing processes,with excellent protection level and anti-interference ability.

Flexibility:It supports multiple communication protocols and interfaces,which is convenient for integration and interoperability with other equipment and systems.

Easy to maintain:It provides rich fault diagnosis and alarm functions to facilitate users to find and deal with problems in time.