ABB PSTX250 User Manual (English)

Questions and Answers:

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deckersamuelAug 22, 2025
What causes an electronic overload in my ABB Controller and how can I resolve it?
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  Cole WatsonAug 23, 2025
  An electronic overload occurs when the motor current is too high for an extended period, often due to a high load on the motor shaft. To resolve this: * Examine start conditions and EOL settings. * Correct the reason for the overload. * Ensure the current limit level is not set too low. * Verify the ramp time for start is not too long. * Confirm the correct overload class is used. * Check that the Setting Ie parameter is correct.
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amber34Sep 1, 2025
How to troubleshoot phase loss in ABB PSTX250 Controller?
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  Rebecca JamesSep 1, 2025
  Check that the mains are connected and that no line contactor or breaker is open. Inspect the fuses for all 3 phases, replacing any that are blown. Verify the operation network supply and correct it if there's a power loss on one or multiple phases. Ensure the contactor/breaker or external switch device is closed. If the line contactor opens too quickly at stop, control it with the Run signal relay on terminal 4, adding a time relay before the contactor opens. If Stop Ramp is not necessary, set Stop mode to direct stop.
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Jeffrey TuckerAug 31, 2025
What to do if my ABB PSTX250 motor does not start when given a start command by the hardwire inputs?
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  Elizabeth ParkerAug 31, 2025
  First, check the connections for start and stop. Make sure that the start and stop commands are not given at the same time. Ensure that the keypad is not in Local Control mode; if it is, push the R\L-key to change to Remote Control mode. Also, verify that the Fieldbus control parameter is set to No. Finally, reset any active or tripping events.
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Bailey WilsonAug 29, 2025
What does 'Thyristor overload' mean on my ABB PSTX250?
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  Brett Powell IIAug 29, 2025
  A thyristor overload indicates that the thyristors are too hot. Check the start conditions and the fans. If possible, decrease the current limit. Allow the temperature of the thyristors to decrease before restarting.
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Margaret OliverAug 28, 2025
What should I do if my ABB PSTX250 displays 'Heatsink overtemperature'?
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  Julia WeberAug 28, 2025
  Ensure that the fans are functioning correctly and that the airways are free from dirt and dust. Also, verify that the ambient temperature is not too high. If the fault persists after a reset, the heatsink is still too hot and needs to cool down.
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Michael KellerAug 27, 2025
What does it mean when my ABB Controller displays 'Under voltage'?
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  Laura SanchezAug 27, 2025
  An undervoltage error indicates that the main voltage is too low. Perform a check of the main voltage.
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Gabriela StevensonAug 27, 2025
What does it mean when my ABB Controller displays 'Overvoltage'?
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  Zachary JohnsonAug 27, 2025
  An overvoltage error indicates that the main voltage is too high. Perform a check of the main voltage.
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Samantha BuchananAug 25, 2025
What should I do if my ABB PSTX250 displays 'Locked rotor'?
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  Eric BakerAug 26, 2025
  Examine the bearings of the motor and the load to ensure they run easily. A damaged bearing or a load stock could be the cause.
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friedmankatherineAug 25, 2025
What does it mean when my ABB Controller displays 'Ground fault'?
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  Leslie HoltAug 25, 2025
  A ground fault indicates that the sum of the instantaneous line currents in your 3-phase system differs more than the specified value. Examine the motor cables and the motor itself for any issues.