INVT Goodrive3000 Series, Operation Manual

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Goodrive3000 series medium voltage VFD Goodrive3000 inverter
-75-
Function
code
Name Description
Setting
range
Default
6: PROFIBUS/CANopen communication
7: Ethernet communication
8: Reserved
The function code is used to set the source of electromotive torque upper limit.
Note:
1. For setting sources 1
–8, 100% corresponds to three times the rated motor current.
2. The options 3, 4, 6, and 7 are available only when corresponding expansion cards are configured.
Function
code
Name Description Setting range Default
P03.20
Electromotive torque upper limit
set through keypad
0.0
–300.0% (of the motor rated
current)
0.0
–300.0
180.0%
P03.21
Braking torque upper limit set
through keypad
0.0
–300.0% (of the motor rated
current)
0.0
–300.0
180.0%
The function code is used to set the torque upper limit via keypad.
Function
code
Name Description Setting range Default
P03.22
Weakening
coefficient in constant
power zone
0.1
–2.0
0.1
–2.0
0.3
P03.23
Lowest weakening
point in constant
power zone
10%
–100%
10
–100
20%
P03.22 is only valid for the vector mode 1 and closed-loop vector mode.
The function code is used when the motor is in flux-weakening control.
T
f
0.1
Flux-weakening
coefficient of motor
1.0
2.0
Min. flux-weakening limit of motor
The function codes P03.22 and P03.23 are valid at constant power. The motor enters the flux-weakening state when the
motor runs above the rated speed. Change the flux-weakening curvature by modifying the flux-weakening control
coefficient. The larger the coefficient, the steeper the curve, the smaller the coefficient, the smoother the curve.
Function
code
Name Description Setting range Default
P03.24 Max. voltage limit
0.0
–120.0% (of the motor rated
voltage)
0.0
–120.0
100.0%
P03.25 Pre-exciting time 0.000
–10.000s
0.000
–10.000
0.300s
P03.26
Flux-weakening
proportional gain
0
–4000
0
–4000
300
P03.24: It sets the max. output voltage of the VFD. Set the value according to onsite conditions.
P03.25: Pre-exciting is performed for the motor when the VFD starts up. A magnetic field is built up inside the motor to
improve the torque performance during the start process.