Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
1Scalar control. The outstanding motor control accuracy
of DTC cannot be achieved in scalar control.
Refer to the selection DTC above for a list of
applications where scalar control should definitely be
used.
Note:
• 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 88) and
section Operating modes of the drive (page 26).
Scalar
0.0 A / real32Defines 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 corrent of the motor.
Note: Correct motor operation requires that the
magnetizing current of the motor does not exceed 90%
of the nominal current of the drive.
Note: This parameter cannot be changed while the
drive is running.
Motor nominal
current
99.6
1 = 1 A / 10 = 1 ANominal 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.
0.0 ... 6400.0 A
0.0 V / real32Defines the nominal motor voltage supplied to the
motor. This setting must match the value on the rating
plate of the motor.
Note: 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).
Note: 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.
Note: This parameter cannot be changed while the
drive is running.
Motor nominal
voltage
99.7
10 = 1 V / 10 = 1 VNominal 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 95.1 Supply voltage.
0.0 ... 800.0 V
Parameters 537
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