VAT 612 Series User Manual (English)

Questions and Answers:

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Sandra LynchAug 27, 2025
What does error E22 mean on VAT 612 display?
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  William BeckAug 27, 2025
  If your VAT Control Unit displays 'E 22' and position '009999' (fatal error - rotation angle of valve plate limited during operation), it indicates the valve unit may be heavily contaminated or the valve plate is mechanically obstructed. You should clean the valve unit according to the maintenance procedure and resolve any obstructions. To complete the process, reset the control unit by cycling the power off and on, or send a reset command locally via the service port with CV/CPA/Service Box2.
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Michelle BaileyAug 27, 2025
What does error E21 mean on VAT 612 Control Unit display?
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  scamachoAug 27, 2025
  If your VAT Control Unit displays 'E 21' and the position '009999' (fatal error - rotation angle of valve plate limited during power up), check if the valve plate is centric adjusted, if the valve unit is heavily contaminated or if the valve plate is mechanically obstructed. Adjust the valve plate according to the maintenance procedure, clean the valve unit, and resolve any obstructions. Reset the control unit by cycling the power off and on, or send a reset command locally via the service port with CV/CPA/Service Box2.
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Laura AdamsSep 3, 2025
What does it mean if VAT 612 display shows «E 21» and position is 009999?
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  David WhiteSep 3, 2025
  If the display shows «E 21» and the position is 009999, it indicates a fatal error where the rotation angle of the valve plate is limited during power up. This could be due to the valve plate being adjusted centrally, the valve unit being heavily contaminated or the valve plate being mechanically obstructed. To resolve this: - Adjust the valve plate according to «Maintenance procedure». - Clean the valve unit according to «Maintenance procedure». - Resolve the obstruction. - Reset the control unit by cycling power (OFFàON) or sending a reset command locally via the service port with CV/CPA/Service Box2.
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Kyle PhillipsSep 5, 2025
What does it mean if VAT 612 Control Unit display shows «E 40» and position is 009999?
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  Kristen LeeSep 5, 2025
  If the display shows «E 40» and the position is 009999, it indicates a fatal error where a motor driver failure has been detected. To resolve this: - Replace the control and actuating unit according to «Maintenance procedure».
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Eileen DodsonSep 7, 2025
What to do if VAT 612 display shows «E 40»?
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  lshortSep 8, 2025
  If the display shows «E 40» on your VAT Control Unit, indicating a fatal error related to motor driver failure, replace the control and actuating unit according to «Maintenance procedure».
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Mr. David AdamsSep 12, 2025
What to do if CLOSE VALVE does not work on VAT 612?
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  Heather Guzman DDSSep 12, 2025
  If the VAT Control Unit CLOSE VALVE does not work, ensure that power is supplied to the motor. Refer to «Electrical connection» for details. Also, check “Display shows «M C»” in this table.
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jwagnerAug 26, 2025
What does SR mean on VAT 612 Control Unit display?
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  Joshua ReevesAug 26, 2025
  If your VAT Control Unit displays 'SR' (Service Request), it could be due to a heavily contaminated valve unit or a sticking gate seal. Clean the valve unit following the maintenance procedures. Then, reset the control unit by cycling the power off and on, or by sending a reset command locally via the service port using CV/CPA/Service Box2.
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Jessica FordAug 25, 2025
How to fix VAT 612 ZERO when it does not work?
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  Ronald KaiserAug 26, 2025
  If ZERO isn't working on your VAT Control Unit, ensure the valve is in the open position (check for 'O' on the display) and that the chamber is at base pressure before attempting ZERO. Also, verify that ZERO is enabled in the valve configuration settings.
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Sheena BrewerAug 25, 2025
What to do if VAT Control Unit PRESSURE CONTROL does not work?
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  Eric ChambersAug 25, 2025
  If PRESSURE CONTROL on your VAT Control Unit isn't functioning, ensure that safety mode is inactive (no 'D' on the display) and PRESSURE CONTROL mode is selected (check for 'P' on the display). Also, make sure you have performed the LEARN procedure. Power should be supplied to the motor according to the electrical connection details.
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garzajacquelineAug 25, 2025
Why is the VAT 612 pressure reading wrong or negative?
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  Robert LucasAug 25, 2025
  If the pressure reading on your VAT Control Unit is incorrect or negative, check the sensor connections according to the electrical connection guidelines. For a 2-sensor version, verify the configuration. Perform ZERO after reaching the base pressure, and ensure the sensor power supply provides sufficient power.