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murphybenjaminSep 23, 2025
What does 'Faulty usage' mean on my ABB Controller?
- JjmathisSep 23, 2025
Do not use jog forward, jog backward, heat motor, or stand-still break functions with an Inside delta motor connection.
What does 'Faulty usage' mean on my ABB Controller?
Do not use jog forward, jog backward, heat motor, or stand-still break functions with an Inside delta motor connection.
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 PSTX Controller 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 PSTX 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 does 'High current' mean on my ABB Controller?
A high current fault indicates that a fault current, higher than 8 times the softstarter's rated current, has occurred. Check the circuits and the motor for an insulation fault between phases or a ground fault.
What does 'Voltage imbalance' mean on my ABB PSTX Controller?
Voltage imbalance indicates that there is a voltage imbalance between the phases. Check the main voltage and restart the motor.
Why does my ABB PSTX 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 PSTX 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 PSTX 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.
Explains the meaning of warning, information, and graphical symbols used in the manual.
Covers drilling plans, enclosure size, clearances, air flow, HMI remote control, and general safety warnings.
Details main circuit connections (line and motor side) and emphasizes hazardous voltage safety precautions.
Covers control supply, functional earth, start/stop circuits, and signal output relays connections.
Guides through the first start-up assistant and navigating the assistants menu for initial configuration.
Explains how to configure motor rated current based on connection type (In Line or Inside Delta).
Explains HMI navigation methods (menu, numerical, on/off, selection) for setting parameters.
Lists and describes common softstarter events and fault conditions like overload, phase loss, and voltage issues.
Details fault causes such as high current, phase loss, heat sink overtemperature, network quality, and thyristor issues.
Explains warning conditions like current underload, voltage imbalance, and limits for starts/run time.
Specifies wiring methods, connection bar types, torque values, and cable sizes for different PSTX models.
General| Type | Softstarter |
|---|---|
| Rated operational voltage | 208-690 V AC |
| Rated operational current | 30-1250 A |
| Number of phases | 3 |
| Operating temperature | -25 to +60°C |
| Operating frequency | 50/60 Hz |
| Overload protection | Yes |
| Protection class | IP20 |
| Communication protocols | Modbus RTU, Profibus |
| Starting method | Voltage ramp, current limit |
| Stopping method | soft stop |
| Bypass contactor | Built-in |
| Display | graphical display |
| Rated control supply voltage | 100-240V AC |
