Vacon NX series Applications Manual

5.4.7 MOTOR CONTROL PARAMETERS (CONTROL KEYPAD: MENU M2 -> G2.6)
Table 40: 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 = Not used
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.
PID CONTROL APPLICATION VACON · 117
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5

Vacon NX series Specifications

General

Product type	AC Drive
Output voltage range	0-Uin
Frequency range	0-500 Hz
Enclosure classes	IP00, IP21
Mounting types	Wall
Braking chopper	Integrated or external
EMC filter	Built-in or external
Control modes	Scalar, Vector
Protection features	Overcurrent, overvoltage, undervoltage, overtemperature, short circuit
Communication options	Modbus, Profibus, CANopen, Ethernet
Ambient temperature range	-10°C to +50°C
Cooling method	Air-cooled