Speed Control; Torque Control - Parker AC30 Série Mode D'emploi

D-184
Parameter Reference
Parameter Name No.
Spd Limiter Torq Ctrl 1781
When set to TRUE, and the drive is in Torque Control mode, this parameter prevents operation outside the speed limits defined in Spd
Demand Pos Lim and Spd Demand Neg Lim. The torque setpoint is compensated if the motor speed reaches these speed limits.
Functional Description
The speed error (speed demand minus speed feedback) is calculated and processed via a proportional + integral (PI) controller. The output of the
PI controller is a torque demand, which is passed directly to the torque control feature.
When the drive is in SENSORLESS VEC mode, the speed feedback is calculated from the voltages and currents flowing in the motor, and the motor
model.
Direct input
530
anin1
Volts/amps to %
anin2
531
Speed reference %
300%
521
Aux torque demand %
-300%
464
scaling = 100% Speed in RPM/60
110%
525
Spd demand Pos Lim %
526
Spd demand Neg Lim %
-110%
Path
Parameters::Motor Control::Spd
Loop Settings
300%
534

SPEED CONTROL

-300%
Hz
x (scaling/100)
x 1/100
x 1/100
Pos speed Hz
% to Hz :
Neg speed Hz
x ( scaling/100 )

TORQUE CONTROL

1780
Default Range
FALSE
535
x (100/scaling)
PI
Speed Feedback Hz
torque
speed
Speed limiter
Spd Limiter Torq Ctrl
Units Writable
ALWAYS
536
x100
Sel Torq Ctrl Only
Filter on
Torque
Demand
1.0 = 100% Torque
Pos torque %
x100
536
Compensated torque reference
In torque limit
Spd Limiter Active
1781
AC30 series Variable Speed Drive
Neg torque %
Torque
Limit