ABB ACS880 Firmware Manual page 376

376 Parameters
No. Name/Value
35.51 Motor load curve
I/I
N
(%)
150
100
50
35.52
50 ... 150%
35.52 Zero speed load
25 ... 150%
35.53 Break point
1.00 ... 500.00 Hz
Description
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
current (higher loads heat up the motor). The load curve
level should be adjusted if the ambient temperature
differs from the nominal value set in
temperature.
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
the 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.
Defines the motor load curve together with parameters
35.51 Motor load curve
Defines the break point frequency of the load curve i.e.
the point at which the motor load curve begins to
decrease from the value of parameter
curve towards the value of parameter
load.
See parameter 35.51 Motor load
Break point for the motor load curve.
35.53 Break point. The load
99.06 Motor nominal
35.50 Motor ambient
and 35.53 Break point. Defines
curve.
and 35.52 Zero speed load.
35.51 Motor load
35.52 Zero speed
curve.
Def/FbEq16
100%
Drive output
frequency
1 = 1%
70%
1 = 1%
45.00 Hz
See par.
46.02