ABB ACS850-04 series, Firmware Manual

Page: 181 / 296

Parameters 181
31.11 Zero speed load Defines the motor load curve together with parameters 31.10
Mot load curve and 31.12 Break point . Defines 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
31.10 Mot load curve .
50 … 150% Zero speed load for the motor load curve. 1 = 1%
31.12 Break point Defines the motor load curve together with parameters 31.10
Mot load curve and 31.11 Zero speed load . 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
31.10 Mot load curve towards the value of
parameter 31.11 Zero speed load .
See parameter 31.10 Mot load curve .
0.01 … 500.00 Hz Break point for the motor load curve. 100 = 1 Hz
31.13 Mot nom tempRise Defines the temperature rise of the motor when the motor is
loaded with nominal current. See the motor manufacturer's
recommendations.
The temperature rise value is used by the motor thermal
protection model when parameter
31.02 Mot temp1 src is set
to Estimated .
0 … 300 °C Temperature rise. 1 = 1 °C
No. Name/Value Description FbEq
Motor nominal
temperature rise
Temperature
Time
Ambient temperature