ABB PSE18 Manuel page 15

7 Troubleshooting
Depending on PSE Softstarter configuration, different events may be
signalled on the LCD. All event codes are found in table 7.1: Event list.
Table 7.1: Event list
Event Event
code
SF20 Software fault
Shunt fault
SF3x
1
By-pass open
SF4x
1
SF50 Softstarter thermal overload
Phase loss fault
EF1x 1
EF20 Bad network quality
Current lost fault
EF3x
1
EF40 Fieldbus fault
EF41 Fieldbus fault
EF50 Low supply voltage
High current fault
EF6x 1
P1 Motor overload protection
P2 Underload protection
P3 Locked rotor protection
SF = Softstarter fault
EF = External fault
P = Protection
x = phase number, 4 indicates multiple or unknown phase
1
Cause
Fault in software
By-pass relay does not open or thyristor short
circuit
By-pass relay or by-pass contactor does not
close
Thyristors overheated
Power loss on operational current on one or
several phases
Excessive disturbances in the operational sup-
ply network
Operational current on one or several phases
lost
Fault on Fieldbus communication, timeout
Fault on Fieldbus communication, parity
Voltage too low or briefly interrupted in supply-
ing network for softstarter
Operational current higher than 8 x I e
Load on motor higher than motor rating and
corresponding selected EOL Class.
Current limit parameter is set on a too low
value.
Load on motor too low
Load on motor too high for a short time
Softstarters Type PSE18...PSE370 User Manual short form 1SFC132369M9901 15