Lenze 8240 frequency inverters - Manual (Page 39)

Commissioning
UOOu_^MTMO 5-7
L
Help for decision Motor cable
screened ≤50 m
unscreened ≤100 m
screened > 50 m
unscreened > 100 m
C014
Single drives
recommended alternatively recommended alternatively
with constant load -4- -2- -2- -
with changing loads -4- -2- -2- -
with heavy start conditions -4- -2- -2- -
Positioning and feed drives with high dynamic response -2- - -2- -
Hoists -4- -2-/-4- -2- -
Pumps and fan drives -3- -2- -3- -2-
Three phase reluctance motors -2- - -2- -
Three phase sliding-rotor motors -2- - -2- -
Three phase motors with assigned frequency-voltage
characteristic
-2- - -2- -
Group drives (depending on the resulting motor-cable length)
д
кЙл = б
 ⋅ Eд
N
+ ä
O
+  + д
б
F
same motors and loads -4- -2- -2- -
different motors and/or changing loads -2- - -2-
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