Tripping Events - ABB PSE 18 Installation And Commissioning Manual

Event Event description
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
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

10.3 Tripping events

Depending on PSE Softstarter configuration, different events may be
signalled on the LCD. All event codes are found in table 10.2: Event list.
Table 10.2: Event list
Cause
Fault in software
By-pass relay/contactor does not open or thyristor short circuit
By-pass relay or by-pass contactor does not close or opens
Thyristors overheated
Power loss on operational current on one or several phases
Excessive disturbances in the operational supply network
Operational current on one or several phases lost
Fault on Fieldbus communication
Voltage too low or briefly interrupted in control supply 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 Installation and commissioning manual 1SFC132057M0201 Chapter 10 85