BONFIGLIOLI ACTIVE Cube ACU 401-18 User 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
Voltage constant 383.
For the voltage constant, refer to the motor data sheet. In the motor data sheet, the
value may be indicated in
rpm 1000
V
. This value can be taken over for parameter
Voltage constant
383.
Parameter
Settings
No.
Description
Min.
Max.
Fact. sett.
383 Voltage constant 0.0 mVmin 850.0 mVmin 0.0 mVmin
If the guided commissioning (Setup) is not carried out, the auto-setup should be
carried out via parameter SETUP selection 796 in order to improve the drive behav-
ior, particularly for small speeds. Select one of the settings 10 … 14 for
SETUP selec-
tion
796.
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 Voltage constant 383 to 0 mV before the com-
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 Rotor flux 225 displays the value 101% (±0.5%).
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 i
nternally.
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 Stator in-
ductance
384.
The stator inductance 384
is the value between two motor phases and can be taken
usually from the data sheet of the motor.
Parameter
Settings
No. Description Min. Max. Fact. sett.
384 Stator inductance 0.1 mH 500.0 mH 1.0 mH
10.2.7 Peak current
The parameter Peak Current 1192 is used during the guided commissioning to set
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 Operating Instructions ACU 06/13

BONFIGLIOLI ACTIVE Cube ACU 401-18 Specifications

General

Brand	BONFIGLIOLI
Model	ACTIVE Cube ACU 401-18
Category	Inverter
Language	English