Voltage Constant; Stator Inductance; Peak Current - BONFIGLIOLI ACTIVE Cube ACU 201-01 Operating Instructions Manual

10.2.5 Voltage constant

In configuration 5xx and 6xx for the control of synchronous machines, the control
behavior can be improved for high dynamic requirements by the settings of the pa-
rameter
For the voltage constant, refer to the motor data sheet. In the motor data sheet, the
value may be indicated in
Voltage constant
No.
383 Voltage constant
If the guided commissioning (Setup) is not carried out, the auto-setup should be
carried out via parameter
ior, particularly for small speeds. Select one of the settings 10 ... 14 for
796.
tion
During the guided commissioning (via keypad and VPlus) for Bonfiglioli motors the
voltage constant is pre-allocated.
For Non-Bonfiglioli motors the voltage constant should be entered if it is known. If
the voltage constant is unknown, set
missioning to ensure the 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
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 con-
sidered internally.

10.2.6 Stator inductance

In configuration 5xx for the control of synchronous machines, the control behavior
can be improved for high dynamic requirements by setting the parameter
ductance
The
stator inductance
usually from the data sheet of the motor.
No.
384 Stator inductance

10.2.7 Peak current

The parameter
the limits for the Isq set value in the frequency inverter. This serves the protection of
the connected synchronous motor. The value can be taken from the motor name
plate or the motor data sheet. Exceeding the values given by the motor manufacturer
can lead to damages in the motor.
126
383.
Voltage constant
V
1000
383.
Parameter
Description
SETUP selection
Rotor flux
384.
384 is the value between two motor phases and can be taken
Parameter
Description
1192 is used during the guided commissioning to set
Peak Current
Operating Instructions ACU
. This value can be taken over for parameter
rpm
Min.
0.0 mVmin 850.0 mVmin
796 in order to improve the drive behav-
383 to 0 mV before the com-
Voltage constant
225 displays the value 101% (±0.5%).
Min.
0.1 mH
Settings
Max. Fact. sett.
0.0 mVmin
SETUP selec-
Stator in-
Settings
Max. Fact. sett.
500.0 mH 1.0 mH
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