15.8.3.4
Tilting protection
Avoids an uncontrolled tilting of the speed.
Functionality:
The motor current is recorded by a
fi
lter (parameter "s_FIL").
If the setted limit value for the current (Parameter "I_KIPP") is exceeded, the setpoint for the speed
will be reduced linear to the motor current.
I_KIPP
I
f
Tilting protection
15.8.4
Improvements with Open-Loop-operation
Information
The described possibilities for improvements apply only to parameter which are available only in the
U/f-operation mode (Open-Loop).
Possibilities for improving travel curve or the signal-timing are described in the chapter
"Commissioning".
15.8.4.1
Optimizing start up behavior
If the motor has a rollback during the start, the minimum current, which is impressed to the motor, too
low. In this case the parameter
Controller/I_IxR
must be increased to minimise the rollback.
Control
|
-
"
I_IxR
15
A
|
-
"
18
15.8.4.2
Slip-compensation
Due to the different speeds in upwards and downwards direction the different positioning travels or
inexactness during the stopping can occur. By having nearly the same speed in both directions these
inaccuracies can be minimised. The adjustment of the speed is carried out by the slip-compensation.
The slip-compensation will be activated with the parameter
Controller/s_COMP=On
.
Control
|
-
"
s_COMP
On
|
-
"
On
U/F: Slip compensation
Original operating instructions
ZETADYN 3C
Special functions
R-TBA08_03-GB 1619
Part.-No. 00163322-GB
181/204
