ABB ACS860 - Page 306

306 Parameters
Scalar Scalar control. The outstanding motor control accuracy of
Vector cannot be achieved in scalar control.
Refer to the Vector selection above for a list of applications
where scalar control should definitely be used.
Notes:
• Correct motor operation requires that the magnetizing
current of the motor does not exceed 90% of the nominal
current of the inverter.
• Some standard features are disabled in scalar control
mode.
See also section Scalar motor control (page 50), and section
Operating modes of the drive (page 22).
1
99.06 Motor nominal
current
Defines the nominal motor current. This setting must match
the value on the rating plate of the motor. If multiple motors
are connected to the drive, enter the total current of the
motors.
Notes:
• Correct motor operation requires that the magnetizing
current of the motor does not exceed 90% of the nominal
current of the drive.
• This parameter cannot be changed while the drive is
running.
0.0 A
0.0 … 6400.0 A Nominal current of the motor. The allowable range is 1/6…2 ×
I
N
(nominal current) of the drive (0…2 × I
N
with scalar control
mode).
1 = 1 A
99.07 Motor nominal
voltage
Defines the nominal motor voltage supplied to the motor. This
setting must match the value on the rating plate of the motor.
Notes:
• With permanent magnet motors, the nominal voltage is the
BackEMF voltage at nominal speed of the motor. If the
voltage is given as voltage per rpm, e.g. 60 V per 1000
rpm, the voltage for a nominal speed of 3000 rpm is
3 × 60 V = 180 V. Note that nominal voltage is not the same
as equivalent DC motor voltage (EDCM) given by some
manufacturers. The nominal voltage can be calculated by
dividing the EDCM voltage by 1.7 (or square root of 3).
• The stress on the motor insulation is always dependent on
the drive supply voltage. This also applies to the case
where the motor voltage rating is lower than that of the
drive and the supply.
• This parameter cannot be changed while the drive is
running.
0.0 V
0.0 … 800.0 V Nominal voltage of the motor. The allowable range is
1/6…2 × U
N
(nominal voltage) of the drive. U
N
equals the
upper bound of the supply voltage range selected by
parameter 95.01 Supply voltage.
10 = 1 V
99.08 Motor nominal
frequency
Defines the nominal motor frequency. This setting must match
the value on the rating plate of the motor.
Note: This parameter cannot be changed while the drive is
running.
50.00 Hz
0.00 … 100.00 Hz Nominal frequency of the motor. 10 = 1 Hz
No. Name/Value Description Def/FbEq16