ABB PST72 Installation And Maintenance Manual

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 The protection is not activated
Normal The protection is in normal operation
Dual The protection has two classes, one during start and another during
continuous run
Parameter text Default value Setting range Description
Overload Normal No, Normal, Dual Overload protection
Information!
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.
• Class 10A
• Class 10
• Class 20
• Class 30
Parameter text Default value Setting range Description
OL Class 10 10A, 10, 20, 30 Overload class
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 after 30 seconds (see below).
Parameter text Default value Setting range Description
OL Class S 10 10A, 10, 20, 30 Overload class
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 Default value Setting range Description
OL Class R 10 10A, 10, 20, 30
Overload class, Dual
type, Run class
Chapter 10
Functions
1
10
100
1000
1
2 3 4 5 6
A
B
C
D
Figure 8: Tripping curves for the electronic overload
A Class 30
B Class 20
C Class 10
D Class 10A
10.6 Low Voltage Products & Systems
1SXU 132 021 M0201 ABB Inc. • 888-385-1221 • www.abb-control.com
10

ABB PST72 Specifications

General

Brand	ABB
Model	PST72
Category	Controller
Language	English