ABB ACS880 - Page 617

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
0.0 % / real32Unfiltered motor torque in percent of the nominal
motor torque.
Note: This parameter is read-only.
Motor torque
unfiltered
97.32
- / -Unfiltered motor torque.
For scaling, see parameter 46.3.
-1600.0 ... 1600.0 %
5.00 ms / real32Defines a filtering time for estimated speed See the
diagram on page 747.
Speed estimate
filter time
97.33
1 = 1 ms / 100 msFiltering time for estimated speed.0.00 ... 100.00 ms
- / real32This parameter is not in use.Total circuit
inductance
97.90
50.0% / real32Defines current reference for controlling low-speed
current if parameter 97.91 Low speed current control
enable is activated.
Low speed current
ref
97.92
1 = 1% / 100 = 1%Percentage of motor nominal current.0.0 ... 300.0%
20.0 % / real32Defines the speed level for controlling low speed
current when parameter 97.91 Low speed current
control enable is activated.
Below this speed, current follows the reference defined
in parameter 97.92.
• When frequency reference of inverter is ramped
above this value, a smooth transition to normal
scalar control starts.
• When frequency is approximately the sum of this
value and 20% of nominal frequency, then current
controller is completely turned off. Scalar control
follows U/f curve or energy optimizer’s voltage
reference.
Low speed limit97.93
1 = 1 % / 100 = 1 %Percentage of motor nominal frequency.0.0 ... 100.0 %
0.000 / real32Defines INU output power factor (cos phi) used in
permanent magnet motor scalar control.
The parameter is effective only when parameter 45.11
Energy optimizer is enabled. The Energy optimizer
function is disabled if this value is set to zero. In this
case, to tune the operating point of the drive and if
current must lead the voltage, a negative value is set.
For example, - 0.990 means voltage is 8.1 degree behind
current.
INU cos φ reference97.96
1 = 1 / 1 = 1INU output power factor.-1.000 ... 1.000
Parameters 617