INVT Goodrive3000 Series Operation Manual page 246

Goodrive3000 series medium voltage VFD
The following figure shows the flow of relevant parameter settings:
Note:
1. The master and slave should be set the same communication mode (CAN communication or RS485 communication);
2. P08.30 is the frequency decreasing velocity of droop control. Generally, the parameter can be set the 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: The flow is shown as follows:
Master-slave mode 1
Frequency
Master
reference
Slave
Note:
1. The master and slave should be in the same type of vector control mode. When the master is in speed control, the
slave is automatically set to torque control.
2. The master-slave mode is applicable to both rigid connection and flexible connection.
Master-slave mode 0
Set P00.00 (master and slave) to the
(V/F control or vector control)
Set P21.00=1(master)
Set P21.01=0 (CAN
communication, recommended)
=1 (485 communication)*
(Frequency decreasing
ratio of droop control)*
ACC/DEC step Speed control
Start
same control mode
P21.00=2(slave)
Set P21.02=0
(master and slave)
Set P08.30
End
Torque control Master VFD
Reference
gain
P21.03
Torque control
-240-
Debugging of master/slave control
M1
Slave VFD
Speed limit
P03.16
P03.17
M2