How to troubleshoot Ground Fault on Allen-Bradley Controller?
A ground fault in your Allen-Bradley Controller can occur if the ground fault current level has exceeded the programmed value, or if the delay time is too short for the application. Check the power system and motor, correcting any issues. Ensure the programmed ground fault levels match the application requirements and extend the delay time if needed.
What does No Load Fault mean on Allen-Bradley SMC-50 Controller?
A no-load fault on your Allen-Bradley Controller may be caused by a loss of load side power wiring with phase indication (15=A, 17=C) or a start command cycled unexpectedly with the motor rotating. Check all load side power connections and inspect the motor windings.
What causes Stall fault on Allen-Bradley Controller?
A stall condition on your Allen-Bradley Controller can occur if the motor did not reach full speed by the end of the programmed ramp time or if there's an incorrect user setting. Check the pump system, machine drive components, and loading. Repair or replace the motor if necessary and verify the settings.
What to do if Allen-Bradley SMC-50 Controller shows Motor PTC fault?
A Motor PTC error on your Allen-Bradley Controller can be triggered by blocked motor ventilation, an exceeded motor duty cycle, or a PTC that is either open or shorted. Check for proper ventilation and the application duty cycle. Allow the motor to cool or provide external cooling, then check the resistance of the PTC.
What to do if Allen-Bradley Controller shows Overload?
If your Allen-Bradley Controller indicates an overload, it could be due to the motor being overloaded or the overload parameters not matching the motor. Check the motor overload condition. Also, verify the values for the overload class and motor FLC, and check the current draw of the motor.
How to fix Line Fault with Phase Indication on Allen-Bradley Controller?
A line fault with phase indication on your Allen-Bradley Controller can be caused by a missing supply phase, the motor not being connected properly, or incoming 3-phase voltage instability. To resolve this, check for an open line (blown fuse), inspect for an open load lead, and verify the power quality.
Why Allen-Bradley SMC-50 shows Undervoltage and how to fix it?
An undervoltage issue with your Allen-Bradley Controller typically arises when the supply voltage is less than the user-programmed value, or the delay time is too short for the application. You should check the power system and correct it if necessary. Alternatively, correct the user-programmed value or extend the delay time to match the application requirements.
Why Allen-Bradley SMC-50 Controller shows Overvoltage and what to do?
If your Allen-Bradley Controller is showing an overvoltage error, it could be because the supply voltage is greater than the user-programmed value, or the delay time is too short for the application. To address this, check the power system and correct if necessary, or adjust the user-programmed value. You can also extend the delay time to better suit the application requirements.
What causes Voltage Unbalance on Allen-Bradley SMC-50?
Voltage or current imbalance in your Allen-Bradley Controller can be due to the supply unbalance being greater than the user-programmed value, or the delay time being too short for the application. Check the power system and correct it if necessary, then correct the user-programmed value. Also, extend the delay time to match the application requirements.
What causes PTC Power Pole and SCR Overtemp on Allen-Bradley Controller?
If your Allen-Bradley Controller displays PTC Power Pole and SCR Overtemp errors, it could be due to blocked controller ventilation, an exceeded controller duty cycle, fan failure, exceeding the ambient temperature limit, or a failed thermistor. Check for proper ventilation and the application duty cycle. Allow the motor to cool or provide external cooling. Replace the power module or control module as needed, and replace the fan if it has failed.
General| Brand | Allen-Bradley |
|---|---|
| Model | SMC-50 |
| Category | Controller |
| Language | English |
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