INVT Goodrive350-19 Series Operation Manual page 177

Goodrive350-19 Series VFD for Crane
Function
Name
code
coefficient in
constant power
zone
Lowest weakening
P03.23 point in constant
power zone
P03.24 Max. voltage limit
P03.25 Pre-exciting time
Flux-weakening
P03.26
proportional gain
Speed display
selection in vector
P03.27
control
Static friction
P03.28 compensation
coefficient
P03.29 Corresponding
Description
T
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
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.
Setting range of P03.22: 0.1–2.0
Setting range of P03.23: 10%–100.0%
P03.24 sets the max. output voltage of the
VFD, which is the percentage of motor rated
voltage. Set the value according to onsite
conditions.
Setting range: 0.0–120.0%
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.
Setting range: 0.000–10.000s
0–8000
0: Display the actual value
1: Display the set value
0.0–100.0%
0.50Hz–P03.31
-165-
Flux-weakening
coefficient of motor
0.1
1.0
2.0
f
speed. Change
Function parameters
Default Modify
○
20%
the
○
100.0%
○
0.000s
○
1000
○
0
○
0.0%
○
1.00Hz