ABB PSE18, User Manual, Page: 15 / 192

Softstarters Type PSE18...PSE370 User Manual short form 1SFC132059M9901 15
EN
Event
code Event Cause
SF20 Software fault Fault in software
SF3x
1
Shunt fault
By-pass relay does not open or thyristor short
circuit
SF4x
1
By-pass open
By-pass relay or by-pass contactor does not
close
SF50 Softstarter thermal overload Thyristors overheated
EF1x
1
Phase loss
Power loss on operational current on one or
several phases
EF20 Bad network quality Excessive disturbances in the operational sup-
ply network
EF3x
1
Current lost Operational current on one or several phases
lost
EF40 Fieldbus fault Fault on Fieldbus communication
EF50 Low control supply voltage Voltage too low or briefly interrupted in supply -
ing network for softstarter
EF6x
1
High current
Operational current higher than 8 x Ie
P1 Electronic motor overload
protection Load on motor higher than motor rating and
corresponding selected EOL Class.
Current limit parameter is set on a too low
value.
P2 Underload protection Load on motor too low
P3 Locked rotor protection Load on motor too high for a short time
SF = Softstarter fault
EF = External fault
P = Protection
1
x = phase number, 4 indicates multiple or unknown phase
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