General Enable - WEG CFW-09 User Manual

CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
[Factory Setting]
Parameter
P175 (5)
Proportional Gain of
the Flux Regulator
(5)
P176
Integral Gain of
the Flux Regulator
P177
Minimum Flux
P178
Rated Flux
P179
Maximum Flux
P177 and P179
are active only when
P202 = 3 (Sensorless
Vector)
P180
Starting Point of the
Field Weakening
Region
These para-
meters (P175, P176,
P178 and P180) are
shown on the
display(s) only when
P202 = 3 or 4 (Vector
Control)
(1)
P181
Magnetization Mode
This parameter
is shown on the
display only when
P202 = 4 (Vector
Control with Encoder)
146
Range
Unit Description / Notes
P175 and P176 are automatically set as a function of parameter P412.
0.0 to 31.9
In general the automatic setting is adequate and there is no need for a
[ 2.0 ]
reconfiguration.
0.1
These gains shall only be manually reconfigured when the excitation
0.000 to 9.999
current signal (id*) is oscillating and compromising system operation.
[ 0.020 ]
0.001
Note: (id*) can be observed at analog outputs AO3 and /or AO4 by
setting P255 = 14 and / or P257 = 14, or at P029 and / or P030.
0 to 120
Parameters P177 and P179 define the output limits of the flux regulator
[ 0 ]
in the Sensorless Vector Control.
1 %
0 to 120
[ 100 ]
1 %
0 to 120
P178 is the flux reference to both Vector controls (Sensorless and with
[ 120 ]
Encoder).
1 %
This parameter is represented as a percentage of the motor rated speed
0 to 120
(P402) and defines the speed where the field weakening region of the
[ 95 ]
motor starts.
1 %
If the inverter is operating in Vector Control and the motor is not reaching
its rated speed, it is possible to gradually reduce the value of parameters
P180 and/or P178 until it works appropriately.
0 or 1
[ 0 ]
-
In sensorless vector, magnetization current is permanently ON. To disable
magnetization current when the motor is stopped, program P211 to 1
(ON). This can be given a time delay by programming P213 greater than
zero.
NOTE!
The excitation current (id*) may be unstable in case of P175 > 12.
NOTE!
These parameters shall not be changed.
P181 Function
0

General Enable

1 Start/Stop
Table 6.12 - Magnetization mode
Action
It applies magnetization current after
General Enable ON
It applies magnetization current after
Start/Stop ON