Section 14 • Slide Calibration

Slide Valve Troubleshooting Guide

The Analog output card of the Vission 20/20 produces a 4–20mA signal to any attached devices. However, it is not uncommon that small differences in the board components might result in small differences in the output. So this screen offers the operator the ability to fine tune the upper and lower output values, see Table 14-2. Slide Valve Troubleshooting Guide.

Table 14-2. Slide Valve Troubleshooting Guide (1 of 2)

Problem

Reason

Solution

 

Dirt or debris is blocking one or both

Clean the optocoupler slots with a

 

optocoupler slots.

cotton swab and rubbing alcohol.

 

 

Adjust the photochopper so that

 

 

the fence extends further into the

 

The photochopper fence extends

optocoupler slots. Make sure the

 

less than about half way into the

motor brake operates freely and

 

optocoupler slots.

the photochopper will not contact

 

 

the optocouplers when the shaft is

The actuator cannot be calibrated.

 

pressed down.

The white calibrate wire in the grey

Tape the end of the white wire in the

 

 

panel and make sure that it cannot

 

Turck cable is grounded.

 

touch metal.

 

 

 

Dirt and/or condensation on the

Clean the boards with an electronics

 

position sensor boards are causing it

 

cleaner or compressed air.

 

to malfunction.

 

 

The calibrate button is stuck down.

Try to free the stuck button.

 

The position sensor has failed.

Replace the actuator.

 

Push button is being held down for

Depress the button quickly and then

 

more that ¾ second when going

let go. Each ¾ second the button is

 

through the calibration procedure.

held down counts as another press.

 

The white calibrate wire in the

Tape the end of the white wire in the

The actuator goes into calibration

grey Turck cable is grounding

panel and make sure that it cannot

intermittently.

touch metal.

mode spontaneously.

 

 

A very strong source of electromag-

Increase the distance between the

 

 

EMI source and the actuator.

 

netic interference (EMI), such as a

 

Install additional metal shielding ma-

 

contactor, is in the vicinity of the

 

terial between the EMI source and

 

actuator or grey cable.

 

the actuator or cable.

 

 

 

 

 

 

The motor was manually moved

 

 

while the position sensor was not

Recalibrate.

The actuator does not transmit the

powered.

 

 

 

The motor brake is not working

Get the motor brake to where it op-

correct position after a power loss.

properly.

erates freely and then recalibrate.

 

 

 

 

 

The position sensor’s EEPROM

Replace the actuator.

 

memory has failed.

 

 

 

 

 

 

The photochopper is misaligned

Try to realign or replace the actuator.

There is a rapid clicking noise when

with the slotted optocouplers.

 

the motor is operating.

The motor brake is not working

Get the motor brake to where it op-

 

properly.

erates freely and then recalibrate.

 

 

 

Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 1.8.5153

14 – 5

Page 74 Page 76
Page 75
Image 75
Emerson 20/20 service manual Slide Valve Troubleshooting Guide 1
Page 74 Page 76

20/20 specifications

Emerson 20/20 is an advanced platform designed for real-time data analytics, visualization, and operational optimization in industrial settings. This robust solution aims to empower organizations by providing actionable insights derived from their operational data, enabling enhanced decision-making and improved efficiency.

One of the standout features of Emerson 20/20 is its ability to integrate seamlessly with various sources of data, whether structured or unstructured. It consolidates information from different systems, such as historians, control systems, and ERP software, allowing users to gain a comprehensive view of their operations. This integration capability is crucial for businesses looking to maximize their data utilization without being confined to a single data source.

The platform employs powerful analytics tools that utilize machine learning and artificial intelligence technologies. These tools are designed to automatically identify patterns, anomalies, and trends in real-time. By leveraging predictive analytics, Emerson 20/20 helps organizations forecast potential issues before they escalate, allowing for proactive maintenance and minimizing downtime.

Emerson 20/20 also features user-friendly visualization dashboards, which provide customizable views tailored to individual user roles. This means that whether you are a plant manager, a process engineer, or an executive, you can access relevant data that speaks directly to your needs. These dashboards facilitate easier understanding of complex data sets, promoting informed decision-making across the organization.

One notable characteristic of Emerson 20/20 is its adaptability and scalability. Businesses of all sizes can implement the platform and scale its features according to their needs. This flexibility ensures that both small operations and large enterprises can derive value from the solution, making it an attractive option for various industries.

Additionally, the platform is designed with cybersecurity in mind, ensuring that data integrity and confidentiality are maintained. This aspect is increasingly important as industries become more interconnected and target more sophisticated cyber threats.

In summary, Emerson 20/20 stands out as a powerful tool for organizations seeking to harness their operational data effectively. With its advanced analytics capabilities, seamless integration, customizable visualization, and scalable design, it offers a comprehensive solution to optimize industrial performance and support data-driven decision-making. As businesses continue to navigate the complexities of modern operations, Emerson 20/20 provides the insights necessary to stay competitive and responsive to changing market demands.
Top Page Image Contents