Configuration
P75-slipkomp
[ASM, -, -]
In the case of asynchronous motors, the fact that the actual speed deviates from the nominal speed under load
is disadvantageous and is caused by the motor slip. Depending on the dimensioning of the motor, the slip is up
to 10% at nominal load.
As a result of the slip compensation, the inverter increases the output frequency as a function of real motor
current according to the following formula:
∆
f =
P75-slipkomp
* (
P18-I_mot_real
- (
P93-I_mot_nom
*
P94-cos phi
)
f_off =
P10-f_nom_int
+
∆
f
Specific values:
[0]
off
- slip compensation switched off
Minimum value:
0.1 %/A
Maximum value: 10.0 %/A
Factory setting:
[0]
off
P76-slip-t_filter
[ASM, -, -]
Filter time of the slip compensation.
This makes it possible to influence the rapidity of the slip compensation.
If the motor tends to vibrate, higher values should be set.
Minimum value:
1 ms
Maximum value: 1000 ms
Factory setting:
20 ms
P77-I-limtr-KP
[ASM, BLDC, BLDCS]
Only in special cases should this parameter be changed from the factory setting.
P77-I-limtr-KP
influences the control (PI) for the motor current limitation, it being possible to set the gain
(proportional part) here.
Minimum value:
2 %
Maximum value: 200 %
Factory setting:
40 %
P78-I-limtr-t_n
[ASM, BLDC, BLDCS]
Only in special cases should this parameter be changed from the factory setting.
P78-I-limtr-t_n
influences the control (PI) for the motor current limitation, it being possible to set the
reset time (I-part) here. Longer times make the control slower. If the times are too short, the current control
tends to oscillate.
Specific values:
[1000]
without I-part
- I-part is switched off
Minimum value:
1 ms
Maximum value: 999 ms
Factory setting:
10 ms
P79-V-contr-KP
[ASM, BLDC, BLDCS]
Only in special cases should this parameter be changed from the factory setting.
P79-V-contr-KP
influences the control (PI) for the internal intermediate circuit voltage, it being possible to
set the gain (proportional part) here. The motor voltage is generated from the intermediate circuit voltage by the
inverter.
Minimum value:
5 %
Maximum value: 100 %
Factory setting:
20 %
P80-V-contr-t_n
[ASM, BLDC, BLDCS]
Only in special cases should this parameter be changed from the factory setting.
P80-V-contr-t_n
influences the control (PI) for the internal intermediate circuit voltage, it being possible to
set the reset time (integral part) here. Longer times make the control slower.
Specific values:
[1000]
without I-part
- I-part is switched off
Minimum value:
5 ms
Maximum value: 999 ms
Factory setting:
10 ms
43