ABB ACS850 series, Manual

Page: 200 / 370

200 Parameters
31.14 Mot therm time Defines the thermal time constant for the motor thermal
protection model (i.e. 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
31.02 Mot temp1 src is set to Estimated .
100 … 10000 s Motor thermal time constant. 1 = 1 s
32
32 Automatic reset Defines conditions for automatic fault resets.
32.01 Autoreset sel Selects faults that are automatically reset. The parameter is a
16-bit word with each bit corresponding to a fault type.
Whenever a bit is set to 1, the corresponding fault is
automatically reset.
The bits of the binary number correspond to the following
faults:
32.02 Number of trials Defines the number of automatic fault resets the drive
performs within the time defined by parameter
32.03 Trial
time .
0 … 5 Number of automatic resets. 1 = 1
32.03 Trial time Defines the time for the automatic fault reset function. See
parameter
32.02 Number of trials .
1.0 … 600.0 s Time for automatic resets. 10 = 1 s
No. Name/Value Description FbEq
100%
63%
100%
Time
Time
Motor thermal time
Motor load
Temperature rise
Bit Fault
0 Overcurrent
1 Overvoltage
2 Undervoltage
3 AI min
4 Reserved
5 External fault