Overload Class; Overload Class, Dual Type, Run Class - ABB PST30 Installation And Maintenance Manual

1000
100
10
1
1 2 3
Figure 8: Tripping curves for the electronic overload
A Class 30
B Class 20
10 C Class 10
D Class 10A
10.6
1SXU 132 021 M0201
Chapter 10
Functions
10:13 Motor overload protection
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Overload
This parameter makes it possible to set the required function of the integrated motor over-
load protection. If an overload occurs, the motor stops and a reset is necessary before a
restart is possible.
The motor overload protection has three different modes:
No
Normal The protection is in normal operation
Dual
Parameter text
Overload
The motor thermal temperature is stored in the event of a power loss.
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.
A
• Class 10A
B
• Class 10
C
• Class 20
D • Class 30
Parameter text
OL Class
10:15 Overload class, dual type, start class
4 5 6
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 after 30 seconds (see below).
Parameter text
OL Class S
10:16 Overload class, dual type, run class
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Overload/Dual Class R
This parameter makes it possible to set the required overload class during continuous run.
The run class is activated 30 seconds after full voltage has been reached.
Parameter text
OL Class R
The protection is not activated
The protection has two classes, one during start and another during
continuous run
Default value
Normal
Information!
Default value
10
Default value
10
Default value
10
Setting range Description
No, Normal, Dual Overload protection
Setting range Description
10A, 10, 20, 30

Overload class

Setting range Description
10A, 10, 20, 30 Overload class
Setting range Description
Overload class, Dual
10A, 10, 20, 30
type, Run class
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