Toshiba Tosvert VF-A5 - Manual (Page 52)

r~ , F~ (Fundamental Parameters #1)
P b
V/f pattern ©
Related parameters
V/f pattern P t
, b I
, L I Voltage boost
Maximum voltage frequency
Cr-. nt n t . P
n t £
nt.t
n t . L
n t . P
n t . r
No. of motor poles
Motor rated capacity
Motor type
Motor rated voltage
Motor rated frequency
Motor rated RPM
Constant torque, variable torque, automatic torque boost, automatic energy saving, and vector control can be
selected for the V/f pattern.
Pfcsetto I Constant torque
characteristics
Pfrsetto P Variable torque
characteristics
* If the voltage boost value is set too high, the motor will be overexcited, and an OL or OC trip may occur. In
some cases, this may also shorten the life of the inverter.
* The voltage boost value is automatically initially set for the max. applicable motor according to the inverter
capacity. If a standard motor matching the inverter capacity is used, the value does not necessarily need to
be adjusted. Even when readjusting, setting to within ±2% of the initial setting value is recommended.
P E set to 3 Automatic torque boost P fc set to 4
P fc set to 5
The load current is detected, and the inverter’s
output voltage (torque) is automatically
adjusted.
Automatic torque boost with
automatic energy saving
Vector control
Motor speed fluctuations are suppressed,
_____________ even with high torque at low frequencies.
P fc set to 6 I Vector control with automatic energy saving
The output voltage is closely monitored during
the automatic torque boost (vector control)
setting, and energy is saved by allowing only
the proper amount of current to flow that is
suitable for that output voltage.
Pfc I and [ Hfc.P I cannot be changed while running. Even if I Hfc.C
I , I
Hfc.fc | , I n t . u
I , I
n t . P
I T E ^ are changed while running, the changes will not become valid until the motor is stopped
(O.OOHz).
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