ABB ACS800 Firmware Manual page 226

226
Index Name/Selection
SCALAR
99.05 MOTOR NOM
VOLTAGE
1/2 ... 2 · UN
99.06 MOTOR NOM
CURRENT
0 ... 2 · I
2hd
99.07 MOTOR NOM FREQ
8 ... 300 Hz
99.08 MOTOR NOM SPEED Defines the nominal motor speed. Must be equal to the value on the motor
1 ... 18000 rpm
99.09 MOTOR NOM
POWER
0 ... 9000 kW
Actual signals and parameters
Description
Scalar control is suitable in special cases where the DTC cannot be applied.
The Scalar control mode is recommended:
- for multimotor drives with variable number of motors
- when the nominal current of the motor is less than 1/6 of the nominal output
current of the drive (inverter)
- the drive is used for test purposes with no motor connected.
Note: The outstanding motor control accuracy of the DTC cannot be achieved
in Scalar control. The differences between the scalar and DTC control modes
are pointed out in this manual in relevant parameter lists. There are some
standard features that are disabled in the Scalar control mode: Motor
identification run (group 99 START-UP
LIMITS), Torque Limit (group
DC Magnetizing (group 21
SPEED CTRL), Torque Control (group
(group 26 MOTOR CONTROL), Flux braking (group
Underload Function (group
Protection (group 30 FAULT
FAULT FUNCTIONS).
For more information, see section
Defines the nominal motor voltage. Must be equal to the value on the motor
rating plate.
Voltage. Allowed range is 1/2 ... 2 · U
Note: The stress on the motor insulations is always dependent on the drive
supply voltage. This also applies to the case where the motor voltage rating is
lower than the rating of the drive and the supply of the drive.
Defines the nominal motor current. Must be equal to the value on the motor
rating plate.
Note: Correct motor run requires that the magnetizing current of the motor
does not exceed 90 percent of the nominal current of the inverter.
Allowed range: approx. 1/6 ... 2 · I
Allowed range: approx. 0 ... 2 · I
Defines the nominal motor frequency.
Nominal frequency (50 or 60 Hz typically)
rating plate. The motor synchronous speed or another approximate value must
not be given instead!
Note: If the value of parameter
group 20 LIMITS change automatically as well.
Nominal motor speed
Defines the nominal motor power. Set exactly as on the motor rating plate.
Nominal motor power
DATA), Speed Limits (group
20 LIMITS), DC hold (group
START/STOP), Speed Controller Tuning (group
24 TORQUE CTRL), Flux optimisation
26 MOTOR
30 FAULT FUNCTIONS), Motor phase loss
FUNCTIONS), Motor Stall protection (group
Scalar control on page 73.
of the drive.
N
of ACS800 (parameter
2hd
of ACS800 (parameter
2hd
99.08 is changed, the speed limits in parameter
FbEq
65535
20
21 START/STOP),
23
CONTROL),
30
1 = 1 V
99.04 = DTC). 1 = 0.1 A
99.04 = SCALAR).
800 ...
30000
1 ... 18000
0 ... 90000