Grundfos RSI - Page 151

P3.9.2.5 MotThermLoadbil
Setting value to 130 % means that the nominal
temperature will be reached with 130 % of motor
nominal current.
I/I
T
t
t
T
105%
4
5
6
3
2
1
9078
Motor temperature calculation
Pos. Description
1 Current
2 Trip area
3 Fault/Alarm
4 Loadability 80%
5 Loadability 100%
6 Loadability 130%
P3.9.2.6 MotTempInitialMode
Selection Description
0 Disabled. The estimated motor temperature rise is set to zero.
1
Constant. Sets the motor temperature rise estimate to a value which equals the
parameter P3.9.2.7 MotTempInitialAdjust value.
2
Last value. Sets the motor temperature rise estimate to a last saved motor temperature
rise estimate multiplied with the parameter P3.9.2.7 MotTempInitialAdjust value.
3
Real time clock. Similar to the last value mode, but the last saved motor temperature rise
estimate is affected by real time and the parameter P3.9.2.4 ThermTimeConst. This
mode requires that a battery is connected to the real time clock.
151
English (GB)