Lenze

Drive design
Rated point and adjustment ranges
The electronic variable speed geared motors consisting of
a geared motor and a motec frequency inverter are
designed for a rated point of 50 Hz and an adjustment
range of 1:6, and are collated in the selection tables.
Rated point (n 2 , M 2 ) at 50 Hz
Main features:
High starting torque and high maximum torque because
of the overcurrent characteristic of the frequency inverter
Operation in the armature adjustment range
Adjustment range (T amb =20°C):
– ≤3.5 without separate fan
– > 3.5 ... 10 with separate fan
Adjustment range (n 2min , n 2max , M 2min , M 2max ) of 1:6
Main features:
Adjustment range of 1:6 without separate fan
Sufficient maximum torque over the entire adjustment
range despite field weakening operation
High constant torque between 15 Hz and 50 Hz
Parameter setting of the frequency inverter:
– V/f cut-off frequency = 50 Hz (C0015 = -50-)
– Adjustment to the adjustment range 1:6:
(C0010 = 14.5 Hz; C0011 = 87 Hz)
– Additional parameters are described in the operating
instructions for the frequency inverter.
Technical information
The maximum torque M max is limited in time by the frequency
inverter (1.8 x M r for 60 sec).
At field frequencies > = 15 Hz and under normal operating
conditions, the motor can be operated without a separate
fan.
At field frequencies < = 20 Hz, the thermal conditions in
the motor need to be taken into account.
At field frequencies < = 1 Hz, the torque behaviour is governed
by the slip of the motor. The slip compensation of
the motec can be used to influence this behaviour.
2
Torque characteristic
(under ideal application conditions)
M 2
M max
100 %
M r = M 2 (Selection table)
Rated point
0 %
0 Hz 1 Hz 50 Hz
Field frequency f d
Lenze G-motion motec en 02/03 2-1