4.4.7
MOTOR CONTROL PARAMETERS (CONTROL KEYPAD: MENU M2 -> G2.6)
Table 30: Motor control parameters, G2.6
Index
Parameter
Min
Max
Unit
Default
Cust
ID
Description
P2.6.1 *
Motor control
mode
0
1/3
0
600
0 = Frequency
control
1 = Speed control
NXP:
2 = Open loop tor-
que control
3 = Closed loop
speed ctrl
4 = Closed loop
torque control
P2.6.2 *
U/f optimisation
0
1
0
109
0 = Not used
1 = Automatic tor-
que boost
P2.6.3 *
U/f ratio selection
0
3
0
108
0 = Linear
1 = Squared
2 = Programmable
3 = Linear with flux
optim.
P2.6.4 *
Field weakening
point
8.00
320.00
Hz
50.00
602
The field weaken-
ing point is the
output frequency
at which the output
voltage reaches
the field weaken-
ing point voltage.
P2.6.5 *
Voltage at field
weakening point
10.00
200.00
%
100.00
603
The voltage at the
field weakening
point as a percent-
age of the motor
nominal voltage.
P2.6.6 *
U/f curve midpoint
frequency
0.00
P2.6.4
Hz
50.00
604
If the value of
P2.6.3 is program-
mable, this param-
eter gives the mid-
dle point frequency
of the curve.
MULTI-STEP SPEED CONTROL APPLICATION
VACON · 87
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4
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