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SINUS PENTA
PROGRAMMING GUIDE
270
/
486
34.1.9.
T
ORQUE
F
OLLOW ER
M
ODE
(VTC
AND
FOC
ONLY
)
If the torque reference mode is set, the VTC and FOC controls allow enabling the Torque Follower mode by activating
parameter
C011c
(
C054c
for motor 2,
C097c
for motor 3). This allows the following:
•
The inverter tracks the torque reference when the Enable input is closed, regardless of the Start input logics;
•
No ramp is applied to the torque reference.
This mode is useful to get Master/Slave systems,where:
•
A Master motor is driven by a drive in speed reference mode. This makes the instant torque demand value
available externally to the drive (typically to an analog input).
•
One or multiple Slave motors are driven by drives in torque reference mode and Torque Follower Mode, that
get the torque reference from the Master, and that deliver the same torque as the Master’s instant by instant.
Programming example of a Master/Slave system:
Master drive:
The Master drive will make the Torque Demand measurement available to analog output AO1. The following are to be
set in the ANALOG AND FREQUENCY OUTPUTS MENU (the parameters left at their default values are highlighted in
gray):
P176
AO1: Representation Mode Selection
1: +/-10V
P177
AO1: Represented Variable Selected
64: Torque Dem. %
P178
AO1: Minimum Value of the Represented Variable
-200%
P179
AO1: Maxmum Value of the Represented Variable
200%
P182
AO1: Output Value Corresponding to the Minimum
Value
-10.0V
P183
AO1: Output Value Corresponding to the Maximum
Value
10.0V
Values in
P178
,
P179
relate to the rated torque. In order for the output voltage range (-10 ÷ +10V) to correspond to the
whole available torque range, values in
P178
,
P179
are to be the same as the values set for the torque limits in the
C047
Minimum Torque for Motor 1
-200%
C048
Maximum Torque for Motor 1
200%
Slave Drive:
Analog output AO1 in the Master drive is connected to analog input AIN1 in the Slave drive. The input voltage range is
to be the same as the torque range.The following are to be set up in the INPUTS FOR REFERENCES MENU:
P055
Type of Reference for AIN1 Input
0: +/-10V
P059
Filter Constant for AIN1 Input
0
The remaining parameters are to be left to their default values. In the LIMITS MENU, the torque limit values are to be
the same as the Master’s:
C047
Minimum Torque for Motor 1
-200%
C048
Maximum Torque for Motor 1
200%
Set the following in the MOTOR CONFIGURATION MENU:
C011
Type of Reference for M1
1: Torque
C011c
Torque Follower Mode
1: Yes
Содержание PENTA MARINE
Страница 173: ...PROGRAMMING GUIDE SINUS PENTA 173 486 Figure 27 Response to the step based on the value of Kp when Ti is kept constant...
Страница 196: ...SINUS PENTA PROGRAMMING GUIDE 196 486 Figure 34 ANALOG Mode Figure 35 DOUBLE DIGITAL Mode...
Страница 197: ...PROGRAMMING GUIDE SINUS PENTA 197 486 Figure 36 General structure of the parameterization of a digital output...