Overload Class; Overload Class, Dual Type, Start Class - ABB PST Installation And Maintenance Manual

Time(s)
1000
100
10
1
1 2 3
Figure 8: Tripping curves for the
electronic overload
A Class 30
B Class 20
C Class 10
D Class 10A
126
AC 1006.9 - 5/03
Chapter 10 - Functions

10:14 Overload class

A
B
C
D
4 5 6
Current
(x I e )

10:15 Overload class, dual type, start class

Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Overload/OL Class
This parameter makes it possible to set the required overload class.
Four different classes are available according to Figure 8.
• Class 10A
• Class 10
• Class 20
• Class 30
Parameter Default
text value
OL Class 10
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Overload/Dual Class S
This parameter makes it possible to set the required overload class
during start. When full voltage is reached, there will be a switch-over
to run class (see below).
Parameter Default
text value
OL Class S 10
Setting
Description
range
10A, 10, 20, Overload
30 class
Setting
Description
range
10A, 10, 20, Overload
30 class
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