ABB ACS880 Firmware Manual page 329

No. Name/Value
35.50 Motor ambient
temperature
-60 ... 100 °C or
-75 ... 212 °F
35.51 Motor load curve
I/I
N
(%)
150
100
50
35.52
50 ... 150%
35.52 Zero speed load
50 ... 150%
Description
Defines the ambient temperature of the motor for the motor
thermal protection model. The unit is selected by parameter
96.16 Unit selection.
The motor thermal protection model estimates the motor
temperature on the basis of parameters 35.50...35.55. The
motor temperature increases if it operates in the region
above the load curve, and decreases if it operates in the
region below the load curve.
WARNING! The model cannot protect the motor if
the motor does not cool properly because of dust,
dirt, etc.
Ambient temperature.
Defines the motor load curve together with parameters
35.52 Zero speed load and
curve is used by the motor thermal protection model to
estimate the motor temperature.
When the parameter is set to 100%, the maximum load is
taken as the value of parameter
(higher loads heat up the motor). The load curve level
should be adjusted if the ambient temperature differs from
the nominal value set in
I = Motor current
I = Nominal motor current
N
35.51
35.53
Maximum load for the motor load curve.
Defines the motor load curve together with parameters
35.51 Motor load curve
maximum motor load at zero speed of the load curve. A
higher value can be used if the motor has an external motor
fan to boost the cooling. See the motor manufacturer's
recommendations.
See parameter 35.51 Motor load
Zero speed load for the motor load curve.
35.53 Break point. The load
99.06 Motor nominal current
35.50 Motor ambient temperature.
and 35.53 Break point. Defines the
curve.
Parameters 329
Def/FbEq16
20 °C or
68 °F
1 = 1°
100%
Drive output
frequency
1 = 1%
100%
1 = 1%