INVT Goodrive3000 Series Operation Manual page 313

Goodrive3000 series medium voltage VFD
same for the master and slave in the setting range (0.5–3 times of motor rated slip frequency which can
be calculated according to the parameters on the name plate of the motor).
When P21.02=1, master-slave mode 1, set the master (1) and slave(s) in vector control mode, the
master in speed control and the slave in torque control, and adopt internal speed loop and torque loop to
realize power balance. The flow is shown as follows:
Master-slave mode 1
Frequency
Master
reference
ACC/DEC step
Slave
Note:
1. The master and slave should be set the same vector control mode, the master in speed control and the
slave in torque control;
2. The master-slave mode is applicable to both rigid connection and flexible connection.
The flow of relevant parameter settings is shown below:
Remark:
1. The master and slave should be set the same communication mode (CAN communication or RS485
communication);
2. Set the slave reference gain to 1. When the motor power of the master and that of the slave are
different, you need to adjust the gain to keep the actual output power and the rated power of the motor
consistent in steady operation.
Speed control Torque control
Reference
gain
P21.03
Start
Set P00.00=1
(master and slave)
(vector control)
Set P21.00=1(master)
P21.00=2(slave)
Set P21.02=1
(master and slave)
Set P21.01=0 (CAN
communication, recommended)
=1 (485 communication)*
Set P21.03 of the slave
(slave reference gain)*
Set P03.13 of the slave
(torque filter time)
End
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Debugging of master-slave control
M1
Master VFD
Torque control
M2
Slave VFD
Speed limit
P03.16
P03.17