ABB ACS180 User Manual

Parameters 227
35.55 Motor thermal time
constant
Defines the thermal time constant for use with the motor
thermal protection model, defined as the time to reach
63% of the nominal motor temperature. See the motor
manufacturer's recommendations.
256 s
100…10000 s Motor thermal time constant. 1 = 1 s
35.56 Motor overload action Defines what action the drive should take when the motor
overload specified by parameter 35.57 occurs.
Warning and
fault
No action No action taken. 0
Warning only Drive generates warning A783 Motor overload when the
motor is overloaded to the warning level, that is,
parameter 35.05 reaches value 88.0%.
1
Warning and fault Drive generates warning A783 Motor overload when the
motor is overloaded to the warning level, that is,
parameter 35.05 reaches value 88.0%.
Drive trips on fault 7122 Motor overload when the motor is
overloaded to the fault level, that is, parameter 35.05
reaches value 100.0%.
2
35.57 Motor overload class
Defines the motor overload class to be used. The class of
protection is specified by the user as the time for tripping
at 6 times the tripping level current.
The function shares the following parameters with the
Motor thermal model:
• 35.51
• 35.52
• 35.53
Together, these three parameters set the tripping level as
a function of motor frequency.
Class 20
Class 5 Motor overload class 5. 0
Class 10 Motor overload class 10. 1
No. Name/Value Description Default
FbEq 16
100%
63%
100%
Time
Time
Motor thermal time
Motor current
Temperature rise
ACS180 FW.book Page 227 Tuesday, March 9, 2021 2:25 PM

ABB ACS180 Specifications

General

Brand	ABB
Model	ACS180
Category	DC Drives
Language	English