Lenze i700

Lenze · i700 servo inverter · reference manual · DMS 3.0 EN · 06/2016 · TD06 259
8 Monitoring functions
8.4 Monitoring of the motor utilisation (I²xt)
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Calculation with only one time constant
If k1 = "0 %" is set, the part of the winding is not taken into consideration and the thermal model is
only calculated using the time constant set for the housing/laminated core. This setting is e.g.
required if only the time constant of the laminated core (T2) is known.
Subindex 1: Motor utilisation (I²xt): Thermal time constant of the winding
Setting range (min. value | unit | max. value) Lenze setting
1 s 36000 60 s
 Write access  CINH  OSC  P  RX  TX UNSIGNED_16
Subindex 2: Motor utilisation (I²xt): Thermal time constant - laminated core
Setting range (min. value | unit | max. value) Lenze setting
1 s 36000 852 s
 Write access  CINH  OSC  P  RX  TX UNSIGNED_16
Subindex 3: Motor utilisation (I²xt): Influence of the winding
Setting range (min. value | unit | max. value) Lenze setting
0 % 100 27 %
 Write access  CINH  OSC  P  RX  TX UNSIGNED_8
Subindex 4: Motor utilisation (I²xt): Starting value
Setting range (min. value | unit | max. value) Lenze setting
0 % 250 0 %
 Write access  CINH  OSC  P  RX  TX UNSIGNED_16