Voltage Constant; Stator Inductance - BONFIGLIOLI ACTIVE CUBE 201 Operating Instructions Manual

11.2.5

Voltage Constant

In Configuration 5xx and 6xx for control of synchronous machines, the control behavior can be
improved for highly dynamic requirements by setting parameter
For the voltage constant, refer to the motor data sheet. In the motor data sheet, the value may be
V
indicated in .
U
1000
min
This value can be applied to parameter
Parameter
No. Description
383 Voltage Constant
If guided commissioning (Setup) is not used, the self-setup should be performed to improve the
drive behavior, especially for small speeds, via parameter
settings 10 ... 14 for
SETUP Select
During guided commissioning (via control panel and VPlus) of BONFIGLIOLI motors, the Voltage
Constant is preset.
In the case of non-BONFIGLIOLI motors, the voltage constant should be entered if known. If you
don't know the voltage constant, set
enable automatic calculation and measurement.
The voltage constant should be optimized after the guided commissioning procedure: In no-load
operation, set 50% of the rated speed. Change the voltage constant in small steps until parameter
225 reads 101% (±0.5%).
Rotor Flux
In the case of motors with a very high number of pole pairs (e.g. higher than 20), it is
possible that the maximum setting range of the parameter is not sufficient. In this
case, divide the voltage constant by 10 and enter the value. The division by 10 is
considered internally.
11.2.6

Stator inductance

In Configuration 5xx for control of synchronous machines, the control behavior can be improved for
highly dynamic requirements by setting parameter
The
Stator Inductance
applied directly from the motor data sheet.
Parameter
No. Description
384 Stator inductance
124
Voltage Constant
Min.
0.0 mVmin
796 .
Voltage Constant
384 is referred to the value between two motor phases and can typically be
0.1 mH
Operating Instructions ACU
Voltage Constant
383.
Setting
Max.
850.0 mVmin
SETUP Select
383 to 0 mV before commissioning, to
Stator Inductance
Setting
Min. Max.
500.0 mH
383.
Factory setting
0.0 mVmin
796. Select one of the
384.
Factory setting
1.0 mH
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