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1 Description of PDAN/PDA/PDH/PDE Series inverter
1.1 General description and Design philosophy
The
PDAN
Series inverter is a POWER CONVERTER for variable-speed AC drives. It applies the Sensor-less Vector
concept to control the output voltage and frequency to the motor. Use current sensor detects three phase AC current
signals and phase angle, and using the Sensor less Vector algorithm to compensate motor speed variation. The PDAN
series will provide more torque at low speed and automatic compensate the motor slip when under heavy loading.
The
PDA
Series inverter is a POWER CONVERTER for variable-speed AC drives. It applies the Sensor-less Vector
concept to control the output voltage and frequency to the motor. Use only one current sensor at DC bus, the advanced
microprocessor detects the DC current and recovers the signal into three phase AC current signals. Phase angle of the
output current is measured in order to compensate motor speed variation using the Sensor less Vector algorithm.
Superior than traditional V/F inverter, the PDA series will provide more torque at low speed and auto compensate the
motor slip when under heavy loading.
PDE
series inverter is similar to PDA series. However, for economic reason, a simple shunt resistor replaces the Hall-
effect current sensor. Therefore, the PDE does not include all the functions involving current measurement and
calculation.
The
PDAN
,
PDA
and
PDE
inverters can generate output frequency up to 650Hz.
PDH
series inverter can generate output frequency up to 3,000Hz used for driving very high-speed motors. In order to
decrease sub-harmonic when running the motor at high frequency, it employs Synchronous Symmetric Sine Pulse
Width Modulation method for waveform generation.
Built in standard
UP/DOWN Counter
Module,
Timer/Counter
Module and
Flip/Flop
Module that are
very often used in actual application system.
Six digital inputs
and
three digital outputs
are all
programmable to meet all kinds of applications.
Three analog inputs
AI1, AI2 and AI3
is provided for
various control applications. Moreover, many combinations
of these three AIx signals are provided; allow your system
design flexible.
Serial communication control
software is embedded in
the CPU; it can easily achieve computer direct control
through RS485 serial port. It is very useful when inverter or
many inverters would like to be dynamical controlled by
master computer. With repeater one serial port can
address up to 99 inverters. (Standard RS485 driver can
drive up to 31 inverters only.)
* The PDAN series inverter has built-in RS-485 interface;
the RS-485/RS-232 option card is available for PDA/PDE
/PDH series inverter.
1.2 Control input & output configuration
The control terminal on the CPU board can be separate into three groups.
Terminal for Analog signals:
AM AI1
5V
AI2
AI3
ACOM
*AI3 does not exist in PDA/H-4015, PDE-2007/2015.
Terminal for Digital signals:
DI1
DI2
REV
24V
DO1
DO2
DI3
DI4
RST
RUN
DCOM
*RUN=DI5, REV=DI6
Terminal for 1a contact Relay output:
RY1
RY2
!
CAUTION
All the input/output control signal lines, or remote panel lines and communication lines must be laid separately from the
high current power/motor/brake lines.
They must not be fed through the same cable conduit/trucking.
0~650Hz
SensorLess
Vector
IGBT
Inverter
PDAN/PDA/PDE/PDH Series
Up/Down
Counter
TIMER
Flip/Flop
Auto-Run
3 Analog
Inputs
* RS-232/485
6 Digital
Input
3 Digital
Output
