ABB ACSM1 - Page 195

Parameters and firmware blocks
195
45.09 MOTNOM TEMP RISE FW block: MOT THERM PROT (see above)
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 45.02
MOT TEMP SOURCE is set to (0) ESTIMATED.
0…300 °C Motor temperature rise.
45.10 MOT THERM TIME FW block: MOT THERM PROT (see above)
Defines the thermal time constant for the motor thermal protection model (ie, time inside which the
temperature has reached 63% of the nominal temperature). See the motor manufacturer's
recommendations.
The motor thermal protection model is used when parameter 45.02 MOT TEMP SOURCE is set to (0)
ESTIMATED.
100…10000 s Motor thermal time.
t
Temperature
Ambient temperature
Motor nominal
temperature rise
Motor
100%
Tem p.
63%
Motor thermal time
t
t
100%
load
rise