ABB PSTX142 User Manual

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Softstarters Type PSTX30...PSTX570

User Manual short form

1SFC132082M9901

Other manuals for ABB PSTX142

Installation And Commissioning Manual188 pages

Questions and Answers:

T
thomas29Aug 22, 2025
What causes an electronic overload in my ABB PSTX142 and how can I resolve it?
- T
  Terri DaughertyAug 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.
C
Colton HendersonSep 1, 2025
How to troubleshoot phase loss in ABB PSTX142?
- L
  Lawrence MorenoSep 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.
A
Alan WoodAug 30, 2025
What to do if my ABB PSTX142 motor does not start when given a start command by the hardwire inputs?
- E
  erin90Aug 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.
A
Ashley ReeseAug 29, 2025
What does 'Thyristor overload' mean on my ABB PSTX142?
- J
  james19Aug 30, 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.
C
Candace SnowAug 28, 2025
What should I do if my ABB PSTX142 Controller displays 'Heatsink overtemperature'?
- F
  fjonesAug 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.
E
elizabeth07Aug 27, 2025
What does it mean when my ABB Controller displays 'Under voltage'?
- C
  Christopher HowardAug 27, 2025
  An undervoltage error indicates that the main voltage is too low. Perform a check of the main voltage.
C
charles71Aug 27, 2025
What does it mean when my ABB PSTX142 displays 'Overvoltage'?
- J
  John SmithAug 27, 2025
  An overvoltage error indicates that the main voltage is too high. Perform a check of the main voltage.
V
vargasryanAug 25, 2025
What should I do if my ABB PSTX142 Controller displays 'Locked rotor'?
- M
  Michael SheppardAug 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.
H
Hannah BrooksAug 25, 2025
What does it mean when my ABB PSTX142 displays 'Ground fault'?
- K
  Kathy SmithAug 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.

ABB PSTX142 Specifications

General

Rated operational current, Ie	142 A
Starting method	Soft starter
IP Rating	IP20
Output current	142 A
Weight	5.5 kg
Rated operational voltage	208 ... 690 V
Communication	Modbus RTU
Operating temperature	-25 to +60 °C

Summary

1 Read this first

Safety Symbols and Guidelines

3 Mounting

Mounting Procedures and HMI Installation

Step-by-step guide for installing the softstarter and HMI.

4 Connection

Main Circuit Wiring

Instructions for connecting the main power terminals (L1, L2, L3, T1, T2, T3).

Control and Input Connections

Covers control supply, earth, start/stop, and input terminal connections.

Output Relays and Circuit Precautions

6 Softstarter Settings

Initial Setup Assistant

Guides users through basic and application setup with a step-by-step wizard.

Motor Data Configuration

Details setting the motor rated current for different connection types.

Options and Safety Settings

8 Short Circuit Current Ratings

Fuse and Breaker Selection

7 Troubleshooting

Motor and Phase Fault Diagnosis

Diagnoses issues like overload, locked rotor, phase reversal, and current imbalance.

Protection and Earth Faults

Fault Conditions and Causes

Thyristor and Connection Faults

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