Soft Starters

Soft Starter Fault Codes

In the event that your dryer comes equipped with a soft starter and you run into an error code, listed below are the display faults that will show up on the main display. Provided below are the error codes and associated recovery suggestions.

Code SF20: Software Fault

Cause	What To Do
Fault in software.	Disconnect and reconnect the control supply voltage (Us) and make a restart. See chapter 5.2.4. If same fault remains, contact your ABB Sales Office.
PSE parameter fault.	Check parameter PSE and select correct setting corresponding to the type of PSE Soft starter.

Code SF34: Shunt Fault

Cause	What To Do
By-pass relays closed after transport, (PSE18...PSE170 only)	Switch off operational voltage and control supply voltage. Switch on voltage in correct succession. Control supply voltage on terminals 1 and 2. Wait 4 seconds and then switching on operational voltage on terminals L1, L2 and L3.
The by-pass contractor's/relays are not opening	Check and replace relay. Contact your ABB Sales Office for replacement kit.
Thyristors short circuit.	Check and replace thyristor. Contact your ABB Sales Office for replacement kit.

Code SF44: By-pass Open

Cause	What To Do
Power loss on control supply circuit.	Check control supply voltage.
By-pass relays/contractor's open or by-pass relays/contractor's do not close.	Check and replace by-pass relay/contactor. Contact your ABB Sales Office for replacement kit.

Code SF50: Soft starter thermal overload

Cause

What To Do

Thyristors overheated. If the fault remains after reset, the hear sink temperature is too high.

Check that the fans are working in a proper way. See chapter 9.1. Check that the cooling airways are free from dirt and dust. See chapter 9.1. Check that the ambient temperature is not too high. Derating is required above 40 degrees C (104 degrees F). See chapter 3.6. Check that the mounting angle is not more than 30 degrees. See chapter 4.2.4. Check that PSE Soft starter is not too small for the number of starts and stops performed each hour.

Code EF14: Phase loss fault

Cause	What To Do
Fuse blown.	Check and replace fuses in all three phases.
Power loss on operational current on one or several phases.	Check and correct supplying operational network.
The main contactor or circuit breaker is open.	Check and close contractor/breaker or any external switching device.
Main contactor opens too quickly at stop.	Control main contactor with Run signal relay on terminal 4. See chapter 5.2.4.6. Add a time relay before contractor opening If Stop Ramp is not needed, set Stop Ramp Time to 0.

Code EF20: Bad network quality

Cause	What To Do
Excessive disturbances in the operational supplying network.	Check and correct supplying operational network.
Short power loss on all three phases in the operational network.	Check and correct supplying operational network.

Code EF34: Current lost fault

Cause	What To Do
Operational current too low or lost on one or several phases.	Check and correct supplying network.
Phase loss on line side or motor side.	Check and correct supplying network. See Phase loss EF14.
Thyristors not able to conduct.	Check and replace PCB/thyristor. Contact your ABB Sales Office for replacement kit.
The motor is too small (current is out of measuring range).	Check that the soft starter corresponds to the motor size.

Code EF40: Fieldbus fault

Cause	What To Do
Fault on fieldbus connection or FieldBusPlug accessory.	Check that the correct type of FieldBusPlug accessory is used. Contact your ABB Sales Office. Check that the connection of the FieldBusPlug is correct. Check the connection of the fieldbus accessory. Perform a reset on any active event.
Fieldbus communication is not working.	Check that the correct type of FieldBusPlug accessory is used. Contact your ABB Sales Office. Check that the connection of the FieldBusPlug is correct. Check the connection of the fieldbus accessory. Check the PLC configuration. Possible Fieldbus fault.
PLC is not running.	Put PLC in run mode. Check PLC configuration.
Fieldbus Control is enabled on a non-fieldbus application.	Set Fieldbus Control parameter to OFF.

Code EF50: Low supply voltage

Cause	What To Do
The control supply voltage is too low on terminals 1 and 2.	Check and correct control supply voltage.
Short power loss on the control supply network.	Check control supply network for short interruptions.

Code EF64: High current fault

Cause	What To Do
Operational current higher than 8 x Ie.	Check if the motor is locked or running stiff. Check the bearings in the motor and connected equipment. Check if the load on the motor is too heavy. Check isolation on the motor windings. Replace the motor.

Code P1: Motor Overload Protection (EOL)

Cause	What To Do
Load on motor higher than motor rating and corresponding selected EOL Class.	At Start Check and correct the reason for the overload. Increase Initial/End Voltage. Check the motor rating plate for Ie. Increase Current Limit. Make Start Ramp Time shorter.
Too many starts and stops during a short time.	At Start Chose a motor with more power and a softs tarter rated for higher current. Check and correct the reason for the overload. Check that the ramp time for start is not too long. Check that correct EOL Class is used.
The motor has been exposed to an overload condition because the current over a certain time is too high. (The load on the motor shaft is too high).	Continuous run Check the rating of the plate for Ie. Check operational voltage. Chose a motor with more power and a soft starter rated for higher current. Check and correct the reason for the overload. Check that correct EOL Class is used.

Code P2: Underload Protection

Cause	What To Do
The motor current is below set level and time.	Check and correct the reason for the underload. Check that the setting Ie is according to the operation conditions. See chapter 7.5.1. Check that the Underload Protection parameter is set according to operational conditions. See chapter 7.5.10.

Code P3: Locker Rotor Protection

Cause	What To Do
The motor is running stiff for some reason. A damaged bearing or a stuck load could be possible causes.	Check the bearings of the motor and load.
Decrease in operational voltage can give a higher operational current.	Check voltage.

Code F1: Transfer of parameters failed

Cause	What To Do
Fault in software.	Try again. If the same failure remains, contact your local ABB Sales Office.

Code F5: Transfer of parameters failed

Cause	What To Do
No parameters stored in the PSEEK.	Load the parameters that you want to transfer from selected PSE. If the same failure remains, contact your local ABB Sales Office.

Code F7: All parameters were not transferred

Cause	What To Do
Fault in software.	Try again. If the same failure remains, contact your local ABB Sales Office.

Code F8: Transfer of parameters failed

Cause	What To Do
Not possible to transfer parameters to PSE when it is in TOR.	Return the PSE to idle state and try again. If the same failure remains, contact your local ABB Sales Office.