Parker AC890PX Series, Инженерный справочник

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C h a p t e r 3 : I n s t a l l i n g t h e D r i v e
AC890PX AC Drive
Set-up Parameters
The drive has several control modes:
Control Modes
V/Hz
VOLTS / HZ Set-up as an Open-Loop Drive (V/F Fluxing) - low performance applications (fan, pump).
Simplest method involving no speed feedback and no compensation for load changes.
Autotune is not required .
SV
SENSORLESS
VEC Set-up using the Sensorless Vector Fluxing Mode - medium performance applications
where the drive uses an electrical model of the motor to automatically compensate for load
changes.
The drive must be tuned to the motor in use by matching the motor parameters in the drive
to those of the motor being controlled.
You MUST use the Autotune feature after entering your parameter values.
CLV
CLOSED-LOOP
VEC
Set-up using the Closed-Loop Vector Mode - high performance applications where the
drive uses external sensors (encoders) to automatically compensate for load changes.
In this mode, speed feedback signals from the motor shaft encoder are processed to
determine the rotational speed of the shaft. A PI algorithm within the software uses this
information to produce varying gate drive signals to the drive circuits. These signals cause
the drive to output the required voltage and frequency for a particular motor speed.
You MUST use the Autotune feature after entering your parameter values.