IRADK10 [INFINEON]
3-phase 115-230V 0.5HP Variable speed Motor Drive control for Appliances and light Industrial Applications.; 3相115-230V 0.5HP变频调速电机驱动控制电器和轻工业应用。
| 型号： | IRADK10 |
| 厂家： | 
Infineon |
| 描述： | 3-phase 115-230V 0.5HP Variable speed Motor Drive control for Appliances and light Industrial Applications. |
| 文件： | 总11页 (文件大小：875K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IRADK10
3-phase 115-230V 0.5HP
Variable speed Motor Drive
control for Appliances and
light Industrial Applications.
IRADK10 Motor Drive
Reference Design Kit
Demo kit Board Features
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·
·
·
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·
115/230VAC input,
400W, 3 Phase,variable voltage output.
NTC thermistor inrush current limiter.
Micro controller 8-Bit with A/D converter.
Constant volt-seconds control.
Opto-isolated RS-232 serial link interface to
the Graphic User Interface software.
Fault protection for over current and over
temperature.
·
·
·
Integral aux. power +15V and +5V.
AC input EMI filter and on/off switch.
Power Module
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600V NPT IGBT technology.
Current rating 5A @ Tc=100°C.
Monolithic IC Driver.
Cross-conduction prevention logic.
Optimized gate drive for reduced EMI.
IMS substrate ground plane provides
EMI shielding.
·
Fully isolated screw mount package.
Graphic User Interface Control Software
·
Displays DC-link current and power module
and heat sink temperatures.
Figure 1 IRADK10 Reference Design Kit
·
·
Displays Driver status.
GUI user settable parameters:
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·
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Motor operating frequency.
IGBT conduction dead time.
Motor acceleration.
PWM frequency.
IGBT temperature limit.
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IRADK10
General Safety notes........................................................................................................ 3
Installation ......................................................................................................................... 3
Protection .......................................................................................................................... 3
System Description .......................................................................................................... 4
Electrical and mechanical description........................................................................... 5
RS-232 Serial Link:........................................................................................................... 5
LED board displays:......................................................................................................... 6
Reset push button ............................................................................................................ 6
PWM phase command signals........................................................................................ 6
High voltage signals J2.................................................................................................... 7
Power Connector J1......................................................................................................... 7
110V/220V selector switch S3 ......................................................................................... 7
Connecting the inverter to the motor. ............................................................................ 7
Operating the motor via the GUI tool ............................................................................. 8
Cycle control description .............................................................................................. 11
Drive Status Feedback ................................................................................................... 12
Technical Data................................................................................................................. 12
Schematic:....................................................................................................................... 13
Software Block diagram ................................................................................................ 15
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IRADK10
General Safety notes
System Description
This controller (frequency inverter, DC controller) operates
at high voltage to control rotating machinery. The heat sink
operates at elevated temperature. This equipment must be
operated by qualified, skilled personnel conversant with all
applicable safety standards.
The IRAMS10UP60X is a complete 3 phase drive for appli-
ance and other small motor drive applications. It is a power
conversion unit for a 120V, 230V, 3-phase, 350W AC PWM
(Pulse Width Modulated) drive. The system is based on an
8-Bit Micro controller used to generate the PWM informa-
tionandimplementthemotorcontrolloop. Thepowerstage
is the new IRAMS10UP60A, Advanced Intelligent Power
module (AIPM) developed and optimized for electronic mo-
tor control in appliance applications, such as washing ma-
chines and refrigerators. This 600V power module contains
6 IGBTs with soft recovery commutation diodes, 3 bootstrap
diodes and one 3-phase IC driver. There is also a thermistor
to monitor IGBT temperature and an RC network for auto-
matic fault trip reset.
Installation
The Demo Board must be placed on an insulating surface
with a suitable cooling fan to control heat sink temperature.
Suitable mating connectors must be used for the GUI and
motor interfaces. Do not make any alterations or soldered
connections to the printed wiring board. Verify that the input
selector switch matches the AC supply voltage.
Figure 1 shows the complete assembly of the
IRAMS10UP60A Reference Design Kit. and Figure 2 illus-
trates a typical connection block diagram.
Protection
The printed wiring board has been designed to minimize
ground loop currents with particular attention to reducing
EMI generation. The use of the Graphical User Interface
(GUI) enables the user to control motor speed and set the
basic control parameters such as PWM frequency and shut
down conditions via the serial link.
The micro controller generates the constant volt-seconds
PWM signals from the instructions entered into the GUI. The
GUI also displays all the micro controller parameters. This
feature enables the user to monitor the actual operation
parameters in real time. Three LEDs are used to monitor
the electrical status of the control board:
A flashing yellow LED indicates that DC bus voltage is
present. Before handling the controller, check that this LED
is not flashing and that the AC input voltage applied to J4
pin1 and pin2 is turned off.
Note:High voltage is present on the motor connections dur-
ing operation.
GUI
Serial comunication
(computer)
EMI
Control
Filter
Section
·
·
·
Yellow flashing: DC bus voltage present.
Green: Drive operational.
Red: Fault condition.
Led feedback
On/Off
Switch
1 2 3 4 5 6 7
All the protection functions are enabled by the software. The
micro controller monitors the DC bus voltage and current
and the heat sink temperature. Shut down is activated if
one of the following conditions is present:
In/Out Connector
Output Phase U
Phase
Neutral
Earth
Output Phase V
Output Phase W
Motor
·
·
·
·
·
DC bus over voltage.
DC bus over current.
DC bus undervoltage
IGBT over temperature.
Heat sink over temperature.
Figure 2 Typical Connection Diagram
The GUI will display which fault has been detected and guar-
antees complete protection for the power stage. The maxi-
mum case temperature can be set through the GUI from
25°C to 100 °C.
The auxiliary power supply uses a UC3842D single ended
current mode PWM controller in a buck topology with linear
post regulators to deliver 5V and 15V DC referenced to the
DC bus return. The auxiliary power supply operates open
loop at 50KHz with a fixed duty cycle. Voltage regulation is
maintained over a DC bus voltage variation from 60VDC to
400VDC.
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IRADK10
Electrical and mechanical description
The Printed wiring board is a double sided 100 x 160 mm
board using a mixed technology of SMT and through hole
components.
HIGH VOLTAGE SIGNALS is the strip of pins with high
voltage PWM signals (i.e. the motor voltages).
The layout of the connectors, indicators and user controls
is shown below in Figure 3.
POWER (J4) is the main connector with the AC 115/230V
power supply, earth connections and the motor (A-B-C)
connections.
RS-232 Serial
Link
110V/220V(S3) is the selector switch for the input voltage
R
G
Y
S 1
Power Switch (S2) is the power switch to turn ON/OFF the
system
RS-232 Serial Link:
A standard 9 pin D connector is used for the RS-232 serial
link.The pins used on this connector are the RxD, TxD, GND,
RTS, and DTR. The RTS and DTR signals provide sufficient
current to drive the opto-couplers. The current drawn from
these pins is far below permissible limits for the RS232 driv-
ers. The board will communicate with the GUI tool (supplied
with the board), if the drivers for the serial link are already
installed. Notice that either the COM1 or COM2 port of your
PC has to be available, the code will not work with COM3 or
COM4. The serial cable may be connected or disconnected
at any time without having to restart the computer.
LED board displays:
S 2
230
Yellow, Green and Red LEDs are mounted at the edge of
the board. At power-up, the auxiliary power supply will oper-
ate if the input voltage exceeds 85% of rated voltage. The
yellow LED will flash for normal bus voltages above 60VDC
indicating “DC bus voltage present”. If the drive is enabled
and the motor is being driven, the green LED stays ON indi-
cating “Drive operational”. In the event of a fault condition,
the red LED activates indicating “Fault condition”and the
green LED extinguishes.
Figure 3 Connectors and indicators layout
RS-232 Serial Link: 9-pin female standard shell (DB9)
connector provides for an opto-isolated RS232 serial link
with the PC at a fixed rate of 2400 Baud, no parity, 1S +
1S.
To restart the system the user can perform one of the
followingoperations:
1) Press the RESET push-button on the board (see
below);
2) Click on the reset command in the GUI (PC);
R,G and Yare three LED diodes (red, green, yellow) to
reflect the drive status.
The yellow diode blinks when the bus voltage is present.
The red diode lights on fault and the green one lights
when the drive is ON.
3) Remove and re-apply AC power.
The reset button is located next to the serial link connector.
Press and hold this button for 1 second to restart the micro
processor.
PWM SIGNALS is the strip of pins with low voltage (TTL)
signals.
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IRADK10
PWM phase command signals
Connecting the inverter to the motor.
This carries the signals as shown below. Note that these
signals are referenced to the negative DC power rail which
is not at ground potential. Beware of electric shock haz-
ard and do not connect any grounded test equipment
such as an oscilloscope to these test pins.
Use a 3-phase 115V Y connected or 220V delta connected
induction motor rated at HP or less.
½
Provide a 3 wire, 2A minimum rated cable for the motor con-
nection, and a 3 wire 2A minimum rated cable for the AC
mains connections. Make sure you also attach the ground
connection. The motor phase connections can be connected
in any sequence, only the rotation direction will be affected.
Make all the necessary connections, including the serial link
with the PC before applying AC power.
Pin 1: Phase A upper switch ON command, inverted
Pin 2: Phase B upper switch ON command, inverted
Pin 3: Phase C upper switch ON command, inverted
Pin 4: Phase A lower switch ON command, inverted
Pin 5: Phase B lower switch ON command, inverted
Pin 6: Phase C lower switch ON command, inverted
Pin 7: ITRIP signal
Pin 8: SP1 spare digital input
Pin 9: SP2 spare digital input
Pin 10: GROUND (0V) referred to - DC bus
Pin 11: Spare analog input referred to -DC bus rail
Pin 12: +5V auxiliary power supply referred to - DC bus
rail
Operating the motor via the GUI tool.
After connecting all the cables and selecting the desired
settings in the GUI, apply the AC power via S2 in position 1.
After a few seconds, provided the main voltage is within tol-
erances, the yellow LED diode will flash denoting the pres-
ence of the DC-bus voltage.
Start the GUI tool. The first screen will prompt you for the
COM port used for PC to DEMO board communication as
is showed in the figure 4. Select either COM1 or COM2 for
this purpose.
High voltage signals J2
This connector J2 carries the motor drive voltages and the
DC bus voltage. Use the same cautions as referenced
above for the PWM phase command signals.
Pin 1: Phase A motor voltage
Pin 3: Phase B motor voltage
Pin 5: Phase C motor voltage
Pin 7: MINUS DC bus rail
Pin 10: PLUS DC bus rail
Power Connector J1
Figure 4. GUI serial connection selections
Power connector provides the input AC power and the
motor connections.
This will lead you to the next screen. Observe at the top-left
a white field with the “DRIVE STATUS” label. Pressing the
“REFRESH SCREEN” button will read the drive status (ON,
OFF, eventual SC, OV, UV, I2T, and heat sink over tempera-
ture) and print a message in the top-left white field. Below
the “DRIVE STATUS” field, another white field is observed
with the caption “DC-link current average value over 5 sec-
onds”. Pressing the “REFRESH SCREEN” button will read
the drive DC-link current averaged over 5 seconds and dis-
play the value in mA units. Further below, in the same far left
column, another white field is observed with the caption “Heat
sink temperature”. Pressing the “REFRESH SCREEN” but-
ton will read the drive heat sink temperature and display the
value in degrees Centigrade.
Pin 1: Input AC voltage (115V or 220V) phase
Pin 2: Input AC voltage (115V or 220V) neutral
Pin 3: Ground connection ( has to be connected to
reduce the EMI noise)
Pin 4: Ground connection
Pin 5: Phase C motor connection
Pin 6: Phase B motor connection
Pin 7: Phase A motor connection
110V/220V selector switch S3
S3 is the selector switch to set the correct rectifier configu-
ration to the AC input.. Prior to connecting the system to the
AC input, carefully check the position of S3. Operate the
switch only when the AC is OFF. The drive will be dam-
aged and the user could be injured by ignoring this warning.
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IRADK10
The Command Buttons
The “RESET MICRO” button will reset the microproces-
sor when pressed, restarting the board after a fault
conditions. You may want to use this button to stop the
motor immediately when a dangerous situation occurs.
The “TURN ON” button will enable the inverter and set
the green LED diode ON (unless a fault is present).
The “REFRESH SCREEN” button is used for updating
the drive variables displayed on the screen.
The “EXIT” button is used to exit the GUI tool and go
back to the operating system.
The “GO CYCLE” will bring you to the next form, wherein
the drive cycle control may be adjusted, programmed,
started and stopped.
Below said field, at the bottom left, observe the slider with
the caption “Temperature limit (default 85)”. Using this slider
you may adjust the temperature threshold for the thermal
protection. A default value is 85 degrees Centigrade, but
you may change this value1 . Figure 5 shows GUI control
screen.
Observe the 5 sliders on the right side of the screen used
for adjusting:
- The drive acceleration constant.
- The drive frequency (i.e. speed) command expressed
in [Hz].
- The IGBT PWM frequency selection (5 kHz or 10 kHz).
- The IGBT inverter lockout time selection
(800ns or 1600 ns).
- The motor rated voltage and frequency selection.
All these sliders are in their default position at start.
Moving the appropriate slider handles into new position
will automatically activate the serial link and pass the new
parameter to the drive.
1
When using sliders for the parameter adjustment, bring the mouse pointer over the slider handle, press and hold the mouse button, move the handle observing small yellow-framed
numbers that will appear indicating the current slider handle position, place the handle precisely to the position wanted and release the mouse button. Carrying the slider handle
away from the range and releasing the mouse button there will have NO effect on the drive parameter change.
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IRADK10
Cycle control description
Drive Status Feedback
The “DRIVE STATUS” display is the field where the GUI in-
dicates what caused the drive to shut down protecting the
power module. The micro controller will shut down the sys-
tem if one of the following faults occurs:
·
Short Circuit: is shown when a short circuit is ap-
plied from phase to phase at the output connec-
tions.
·
Over Voltage: is shown when the DC bus voltage
exceeds 400V. Note The bus voltage can climb
to a shut down condition if the deceleration set-
ting is set too high.
·
·
·
Under voltage: When the input AC voltage at the
rectifier is insufficient to provide a bus voltage of
100VDC, the system shuts down and cannot start
the motor.
I2T: This is the IGBT SOA protection. If the output
power exceeds 400W for over 2 minutes, the
powerinverterwillshutdownpreventingthepower
module from over-heating.
Figure 6. GUI control panel screen
As stated above, the “GO CYCLE” command button of the
GUI tool will bring you to the next form, wherein the drive
cycle control may be adjusted, programmed, started and
stopped.
Observe 4 time intervals (t1, t2, t3, t4) and the frames where
their duration may be adjusted by editing the number writ-
ten in the appropriate fields. When adjusting these num-
bers, make sure you enter an integer number of seconds
not exceeding 30.
Heat sink over temperature: If the heat sink tem-
peraturerisesmorethan“Heatsinktemperature”
set by the user, the system will shut down.
For the time intervals t1 and t3, the assumed speed refer-
ence is zero. Intervals t2 and t4 will have non-zero speeds.
Their speeds W2 and W4, expressed in [Hz] may be ad-
justed by editing the fields indicated by W2 [Hz] and W4
[Hz] labels.
You must enter an integer number between 0 and 100. for
both intervals, the direction of rotation is adjusted by writing
into the CW/CCW fields.
When a CW string is found in above fields (default), the CW
direction of the motor shaft is commanded. Otherwise, for
whatever string other than CW, the drive assumes a CCW
direction. The cycle begins by pressing the “RUN” button.
Whenever the user wants to stop the cycle, the STOP but-
ton has to be pressed. The “STOP” button will decelerate
the motor. During deceleration a “WAIT!!!” message will
appear across the form, and the GUI will revert to the previ-
ous frame once the speed reaches zero. While the cycle is
running, the user may observe the DC-link current and the
heat sink temperature.
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IRADK10
Technical Data
Input Voltage 230 V/50Hz and 115 V/60Hz single
Phase.
Electrical Specification:
Output for 3-phase 0.5 HP AC Induction Motor.
Soft start with relays on the Board.
Surge absorber.
High frequency input EMI filter following the CISPR
14.
On-board power switch.
Input fuse.
Light indicator when DC bus voltage is present.
Input/output terminal strips - IR to rpovide catalogue
number.
Opto=isolated RS-232 serial interface to outside
world.
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IRADK10
Schematic:
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IRADK10
Software block diagram:
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IRADK10
The information presented in this paper is believed to be accurate and reliable. However, International Rectifier can assume no responsi-
bility for its use nor any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or other use under any patent or patent rights of International Recitifier. No patent liability shall be incurred for use of the circuits
or devices described herein.
Printed in U.S.A. 11/08
© 2002 International Rectifier rev. 1
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