Lenze i950 Series, Manual

Page: 246 / 500

13.4.6 Set load adjustment
CAUTION!
If the load adjustment is too high, the motor current may increase in idle state and the motor
may overheat!
Parameter
Address Name / setting range / [default setting] Info
0x2B07:001 Load adaption: Direction of rotation
•
Setting can only be changed if the inverter is inhibi-
ted.
Selection for adapting the characteristic as a function of the load in case
of CW and CCW rotation.
0 Passive load
1 Active load CCW
2 Active load CW
0x2B07:002 Load adaption: Load adaption value
0.00 ... [20.00] ... 200.00 % Setting of the load adaptation in [%] proportionally to the rated motor
torque to obtain an appropriately "rigid" drive behaviour even after
start-up.
•
For starting torque = rated motor torque, a load adaptation of 50 % is
suitable for most applications.
13.4.7 Set slip compensation
The speed of an asynchronous motor depends on the load. This load-dependent speed drop is
called “slip”. The slip compensation serves to counteract the load-dependent speed loss.
Observe correct parameterisation of the rated motor frequency 0x2C01:005 and
the rated motor speed 0x2C01:004 . Both parameters serve to calculate the
rated motor slip.
Parameter
Address Name / setting range / [default setting] Info
0x2B09:001 Slip compensation: Gain
-200.00 ... [0.00] ... 200.00 % Adjustment in percent of the slip calculated.
•
For instance required for deviations of the real motor data from the
nameplate data.
•
A setting of 100 % corresponds to the rated slip of the machine in the
nominal operating point.
0x2B09:002 Slip compensation: Filter time
1 ... [2000] ... 6000 ms Filter time for the slip compensation.
Configuring the motor control
V/f characteristic control for asynchronous motor (VFC open loop)
Set slip compensation
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