Honeywell SmartVFD HVAC2 Applications Manual page 126

U[V]
Un
Pa r. 1.11
Default: Nominal
voltage of the motor
Linear
Pa r. 1.14
Fig. 43. Linear and squared change of motor
voltage
2 = Programmable U / f curve:
The U / f curve can be programmed with
three different points. Programmable U / f
curve can be used if the other settings do
not satisfy the needs of the application.
Field weakening
point
Squared
Default: Nominal
frequency of the
motor
Pa r. 1.10
U n
P a r. 1 .11
P a r. 1.1 3
P a r. 1 .14
f[Hz]
Fig. 44. Programmable U / f curve
Field weakening point
The field weakening point is the output frequency
at which the output voltage reaches the value set
with par. 1.11.
Field weakening point voltage
Above the frequency at the field weakening point,
the output voltage remains at the value set with
this parameter. Below the frequency at the field
weakening point, the output voltage depends on
the setting of the U / f curve parameters. See
"Parameter descriptions" on page 124 and
126
U [V ]
D efault: N om ina l F ield w eakening
voltage of the m otor point
D efault: N om ina l
frequen cy of the
m otor
P a r. 1.1 2 P a r. 1 .10
f[H z]
31-00108—07