ABB PST, Руководство по установке и обслуживанию

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126 Low Voltage Products & Systems
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Chapter 10 - Functions
10:14 Overload 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
10:15 Overload class, dual type, start class
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).
1
10
100
1000
1
2 3 4 5 6
A
B
C
D
1SFC132102F0001
Time(s)
Current
(x Ie)
Figure 8: Tripping curves for the
electronic overload
A Class 30
B Class 20
C Class 10
D Class 10A
Parameter
text Default
value Setting
range
Description
OL Class 10
10A, 10, 20,
30 Overload
class
Parameter
text Default
value Setting
range
Description
OL Class S 10
10A, 10, 20,
30 Overload
class