ABB ACS880 Firmware Manual page 218

218 Parameters
No. Name/Value
Other
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
Source selection (see Terms and abbreviations
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
Zero speed load and 35.53 Break point.
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 35.50 Motor ambient
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
Motor load curve and 35.53 Break
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.
on page 88).
35.52
The load curve is
99.06 Motor nominal current
temperature.
Drive output
frequency
35.51
point. Defines the
curve.
Def/FbEq16
-
20 °C or
68 °F
1 = 1°
100%
1 = 1%
100%
1 = 1%