Frequency Converter Reset Procedure

PROcision Skilled Solutions

Brandon Adams 9/23/2024

OVERVIEW & PURPOSE

This document serves as a directive as to how to reset the Solid State Frequency Converter (SSFC), should it experience a fault during operation. Please keep in mind that these are best practices/recommendations.

Please refer to the FCX Solid State Frequency Converter Manual for more detailed information.

FCX Solid State Frequency Converter Manual
QUIZ - Understanding the Purpose

What is the primary purpose of this document?

To provide reset procedures for the SSFC during fault situations
To explain how to install an SSFC
To detail the technical specifications of the FCX Systems products
To set up regular maintenance schedules for the SSFC
TOOLS NEEDED & PRESUMPTIONS

Tools Needed

No Tools Required

Presumptions

  1. The connectors have been checked and verified to be good.
  2. The switches on the outside of the PDE have been verified to be in the appropriate position.
  3. The breakers within the PDE have been set (or reset) to the appropriate positions, including the new 25A and 30A breakers located behind the PDE protective panel.
  4. The SSFC Cabinet safety switch is NOT tripped and the circuit breaker lever switches are in the closed circuit (ON) position.
FCX Internal Components
QUIZ - Tools & Presumptions

Which of the following is NOT one of the presumptions before beginning the reset procedure?

The connectors have been checked and verified to be good
The switches on the PDE have been verified to be in the appropriate position
The power source has been turned off for at least 60 minutes
The SSFC Cabinet safety switch is NOT tripped
RIOS PROCEDURE

The method of troubleshooting we are outlining is called RIOS, which stands for RESET, Input, Output, Start. This is the current baseline for troubleshooting faults at the Solid State Frequency Converter.

Procedure Steps:

  1. Examine the fault displayed on the SSFC Cabinet screen.
  2. Record any relevant data regarding the fault.
  3. Press the RESET (R) button located on the touchpad.
    SSFC Reset Button
  4. Inspect the values located on the Input page by pressing the INPUT (I) button on the touchpad.
    SSFC Input Screen
  5. Inspect the Output values located on the Output page by pressing the OUTPUT (O) button on the touchpad.
    SSFC Output Screen

    Be careful not to confuse the 'O' button, which is located below the 'I' button, with the '0' button located at the bottom of the number keypad.

  6. After verifying the voltage on the Input and Output screen, press the START button to resume activity upstream to the platform.
    SSFC Start Button

    It's a best practice to ensure that the tether breaker switch on the PDE is OFF prior to reapplying voltage upstream. Once the SSFC is providing energy, reintroduce the voltage to the system by applying tether power (switch bottom breaker switch on the side of the PDE to 'Tether').

Interactive RIOS Procedure Practice

SSFC Control Panel
QUIZ - RIOS Procedure

What does RIOS stand for in the troubleshooting procedure?

Restart, Initialize, Output, Shutdown
Reset, Input, Output, Start
Regulate, Install, Operate, Service
Review, Inspect, Observe, Solve
POWER CYCLING PROCEDURE

If the RIOS method does not fix the fault, power cycle the SSFC by following these steps:

  1. Disable (open) the Output Circuit Breaker
  2. Disable (open) the Input Circuit Breaker, located on the left and right of the SSFC cabinet
  3. The system should remain powered off for approximately 45 seconds
  4. Reintroduce power to the system by enabling (closing) the Input Circuit Breaker
  5. Enable (close) the Output Circuit Breaker
FCX Cabinet Circuit Breakers

This guide is for quick reference. Please refer to the FCX Solid State Frequency Converter Manual for more detailed information and schematics.

FINAL ASSESSMENT

Which step should be taken if the RIOS method doesn't resolve the fault?

Immediately replace the frequency converter
Press the RESET button three more times
Power cycle the SSFC by disabling and re-enabling the Input and Output Circuit Breakers
Leave the system in a faulted state and call for technical support
TRAINING COMPLETE

Congratulations!

You have successfully completed the Frequency Converter Reset Procedure training module.

Key Takeaways:

  • The RIOS method (Reset, Input, Output, Start) is the baseline for troubleshooting SSFC faults
  • Always verify input and output values before proceeding
  • Power cycling is a secondary method if RIOS doesn't resolve the issue
  • Always refer to the FCX manual for detailed information

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