Slide Valve Actuator Trouble Shooting Guide

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This indicates a skipped state in the patterns generated by the optocouplers as the

 

motor moves. This error means that the slide valve actuator is no longer transmit-

 

ting accurate position information. The actuator should be recalibrated as soon as

 

possible. This code will not clear until the actuator is recalibrated.

 

This code can be caused by:

 

1. The motor speed exceeding the position sensors ability to measure it at some

 

time during operation. A non-functioning motor brake is usually to blame.

 

2. The actuator is being operated where strong infrared light can falsely trigger

 

the slotted optocouplers, such as direct sunlight. Shade the actuator when the

 

cover is off for service and calibration. Do not operate the actuator with the

 

cover off.

 

 

*__*__*____________

The motor has overheated. The actuator motor will not run until it cools. Once the

 

motor cools, the actuator will resume normal operation.

 

Motor overheating is sometimes a problem in hot and humid environments when

 

process conditions demand that the slide valve reposition often. Solutions are

 

available; consult your Vilter authorized distributor for details.

 

Another possible cause for this error is a stuck motor thermal switch. The ther-

 

mal switch can be tested by measuring the DC voltage with a digital multi-meter

 

between the two TS1 wire pads (see Note 2). If the switch is closed (normal opera-

 

tion) you will measure 0 Volts.

 

 

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The 24V supply is voltage is low. This will occur momentarily when the actuator is

 

powered up and on power down.

 

If the problem persists, measure the voltage using a digital multi-meter between

 

terminals 3 and 4 of the small terminal block. If the voltage is >= 24V, replace the

 

actuator.

 

 

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The EEPROM data is bad. This is usually caused by loss of 24V power before the

 

calibration procedure was completed. The actuator will not move while this error

 

code is displayed. To clear the error, calibrate the actuator. If this error has oc-

 

curred and the cause was not the loss of 24V power during calibration, possible

 

causes are:

 

1. The EEPROM memory in the micro-controller is bad.

 

2. The large blue capacitor is bad or has a cracked lead.

 

 

*****____*__________

Micro-controller program failure. Replace the actuator.

 

 

Note 1: TP1 and TP2 are plated-thru holes located close to the slotted optocouplers on the board. They are clearly marked on the board silkscreen legend.

Note 2: The TS1 wire pads are where the motor thermal switch leads solder into the circuit board. They are clearly marked on the board silkscreen legend and are oriented at a 45 degree angle.

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Emerson VSR, VSM, VSS service manual This code can be caused by
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VSS, VSM, VSR specifications

Emerson VSM, VSR, and VSS are advanced technologies designed for process automation and control, often utilized in industrial applications. These systems are part of Emerson's broader portfolio of solutions aimed at enhancing operational efficiency, safety, and reliability.

The Emerson VSM, or Valve Signature Management, focuses on the digital management of valves within a system. One of its main features includes advanced diagnostics that monitor the health and performance of control valves. This technology allows for predictive maintenance, ensuring that valves operate at peak efficiency and reducing the risk of unexpected failures. The VSM utilizes a combination of smart sensors and actuators to gather data, enabling real-time analytics that can enhance decision-making and operational strategies.

On the other hand, VSR, or Valve Status Reporting, enhances visibility into the operational state of valves in real time. This system provides operators with critical updates and alerts related to valve conditions, significantly reducing response times to potential issues. The VSR technology integrates seamlessly with existing control systems, allowing for easier implementation and minimal disruption to ongoing operations. The reporting capabilities feature user-friendly dashboards that present complex data in a straightforward manner, empowering operators to make informed decisions quickly.

The Emerson VSS, or Valve Service Solutions, complements the VSM and VSR by focusing on the maintenance and support of valve systems. This offering includes comprehensive service packages that range from routine maintenance to advanced troubleshooting and repair. The VSS is designed to improve the lifespan of valves through proactive service, ensuring reliability and minimal downtime. Emerson’s trained technicians leverage predictive analytics derived from VSM and VSR data, allowing for timely intervention before issues escalate.

In summary, Emerson’s VSM, VSR, and VSS technologies work together to create a robust ecosystem for valve management in industrial settings. The combination of advanced diagnostics, real-time reporting, and comprehensive service solutions provides operators with a powerful toolkit aimed at optimizing performance and ensuring operational reliability. With these technologies, companies can embrace digital transformation, reduce operational risks, and improve overall process efficiency, leading to a safer and more productive environment. Each component plays a crucial role in empowering industries to meet the challenges of modern automation and maintain competitive advantages in their respective markets.
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