130 Low Voltage Products & Systems
AC 1006.9 - 5/03 ABB Inc. • 888-385-1221 • www.abb-control.com
Chapter 10 - Functions
10:22 Underload protection
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Underload
If the motor current falls below the set level and the set time when
the motor is running at full voltage, the protection is activated. The
protection starts monitoring when full voltage is applied to the motor.
This protection could be used to avoid for example a pump running
dry or detecting a broken belt.
10:23 Underload protection level
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Underload/Underl Lev
This parameter makes it possible to set the level of the underload
protection. It is active only if the underload protection is selected.
Parameter
text
Default
value
Setting
range
Description
Underload No Yes, No
Underload
protection
Parameter
text
Default
value
Setting
range
Description
Underl Lev
0.8 x I
e
0.4… 0.8xI
e
Trip level for
Underload
protection
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