Underload Protection Time; Underload Protection, Type Of Operation - ABB PST Installation And Maintenance Manual

Low Voltage Products & Systems
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Chapter 10 - Functions

10:24 Underload protection time

Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Underload/Underl Time
This parameter makes it possible to set the delay time from detec-
tion until the protection is activated. It is active only if underload
protection is selected
Parameter
text
Underl Time 10 s

10:25 Underload protection, type of operation

Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Underload/Underl Op
This parameter makes it possible to select between three different
actions when the protection is activated. It is active only if the
underload protection is selected.
Stop– M
Stop– A
Ind
Parameter
text
Underl Op
Default Setting
value range
1... 30 s
The motor stops and a manual reset is
required before restart.
The motor stops and an automatic reset
is performed when the fault disappears.
The motor continues to run but a fault
indication is given.
Default Setting
value range
Stop-M,
Stop-M
Stop-A, Ind
Description
Trip time for
Underload
protection
Description
Type of
operation for
Underload
protection
AC 1006.9 - 5/03
131