
Parameters 227
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
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
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
when the
motor is overloaded to the warning level, that is,
parameter
reaches value 88.0%.
Drive trips on fault
overloaded to the fault level, that is, parameter
35.05
reaches value 100.0%.
2
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:
•
•
•
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