GE VAT2000 Instruction Manual page 90

No. Parameter
B32 – Vector control compensation selection
0 High speed flux control
selection
1 Temperature compensation
selection
2 Voltage saturation
compensation selection
3 Iron loss compensation
selection
4 ACR voltage model FF
selection
6. Control Functions and Parameter Settings
Block-B parameters (Extended function constants) list
Unit Default
1.
1.
2.
1.
2.
Min. Max.
1. 2. 1: Disable 2: Enable
This is the control selection for
magnetising the secondary flux
to a high speed when starting
operation.
Select this to increase the motor
speed even slightly when
starting operation.
1. 2. 1: Disable 2: Enable
This is to compensate
fluctuation of R1, R2 motor
constants caused by changes in
the motor's temperature.
Useful if high torque accuracy is
required when (C30-0 = 4), or if
high speed accuracy is required
in sensor-less operation (C30-0
= 3),
1. 2. 1: Disable 2: Enable
This function is useful If the
output voltage is larger than the
voltage that can be output by
the inverter, or when raising the
output voltage to near the input
voltage, or when the input
voltage changes, limiting the
exciting current to prevent the
current or torque instability.
If there is voltage saturation, a
high ripple in the torque will
occur. In this case, lower the
B01-9 setting to avoid this.
1. 2. 1: Disable 2: Enable
This compensates the torque
error caused by iron loss. The
iron loss resistance value (B02-
8, 9) must be set.
1. 2. 1: Disable 2: Enable
The voltage fluctuation caused
by the leakage inductance is
feed forward controlled.
The current regulator (ACR)
response will be increased.
Select this if the current hunts in
the high-speed operation range
during sensor-less control.
6-15
Function Application
ST V/f VEC PM