Why does my ABB PSTX250 Controller motor make a bad sound during start?
This could be due to an incorrect motor connection. Examine and correct the wiring, and connect the control supply voltage, referring to the circuit diagram. Alternatively, the ramp time for the start might be incorrect. Try different ramp times to find the best setting.
What does it mean when my ABB Controller displays 'Ground fault'?
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.
What should I do if my ABB PSTX250 displays 'Locked rotor'?
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.
What does it mean when my ABB Controller displays 'Overvoltage'?
An overvoltage error indicates that the main voltage is too high. Perform a check of the main voltage.
What does it mean when my ABB Controller displays 'Under voltage'?
An undervoltage error indicates that the main voltage is too low. Perform a check of the main voltage.
What should I do if my ABB PSTX250 displays 'Heatsink overtemperature'?
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.
What does 'Auto-restart time-out' mean on my ABB Controller?
The auto-restart time-out error means that the time between a trip and an auto-restart attempt has exceeded the configured setting. Review the automatic restart parameters and correct them as needed.
Why does my ABB PSTX250 Controller display 'Too long start time'?
This indicates that the time taken to soft start the motor is longer than the set value. Check the starting conditions and current limit.
How do I fix an ABB PSTX250 Controller that shows a blank screen and no LED is active?
First, ensure that the supply voltage is properly connected, referring to the circuit diagram. Also check that the RJ45 plug is connected between the HMI and the softstarter, and that the RJ45 network cable is not damaged.
What to do if my ABB PSTX250 Controller motor is humming or starts without a given start signal?
This issue could be due to a few reasons. If it's a PSTX30...170 model, a bypass relay might be closed due to inaccurate handling. To resolve this, disconnect the operation voltage and the control supply voltage, remove the USB cable if connected, and then reconnect the voltage in the following sequence: first, the control supply voltage on terminals 1 and 2 (refer to chapter 5.1.2), wait 4 seconds, and then connect the operation voltage on terminals L1, L2, and L3. Alternatively, the bypass contactor/relay could be stuck in a closed position, or there might be a shorted thyristor. In either of these cases, it is best to speak to your ABB Sales Office.
General| Brand | ABB |
|---|---|
| Model | PSTX250 |
| Category | Controller |
| Language | English |
Provides essential safety guidelines for operating the softstarter and related equipment.
Provides instructions for connecting the Softstarter, including main circuit and terminal connections.
Guides through the initial setup and configuration of the Softstarter using assistant menus.
Explains the procedures for starting and stopping the motor using the keypad or hardwire control.
Covers the general installation procedures, including lifting, clearances, and mounting.
Describes the main electrical connections for the Softstarter, including power and control circuits.
Explains how to connect start and stop signals using internal or external control voltage.
Describes the function of each key on the HMI keypad, including navigation and soft keys.
Describes how to access and modify Softstarter parameters through various menus like Complete list and Favorites.
Details how to set the motor's rated current, crucial for optimal performance and protection.
Details the various protection functions available to safeguard the system.
Explains the fault detection functions that protect the Softstarter and motor from malfunctions.
Offers solutions for common issues like motor humming, bad motor sound, and starting problems.
Shows the circuit diagrams for the PSTX Softstarter in both IEC and UL versions.
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