PED Manual for TI

7/30/2019 PED Manual for TI

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Trident Techlabs Pvt. Ltd.,S7, Mamanji Center, Thiru-Vi-Ka Industrial Estate, Guindy, Chennai 32

Phone No: 044 43358483/84,www.tridenttechlabs.com

1. Micro controller based speed control of Converter/Chopper fed DC

motor.

AIM

To study the operation Micro controller based speed control of DC motor

APPARATUS REQUIRED

1 DRV8412 - 12 Micro USB Cable - 13 DC motor - 1 set4. Personal Computer - 1 Set5. Code Composer Studio

CONNECTION PROCEDURE

Make sure nothing is connected to the board, and no power is being supplied to theboard.

Insert the Control card into the J1 control CARD connector if not alreadypopulated.

Make sure the following jumpers & connector settings are valid on the DRV8412base board i.e.

JP1 is in the VR1 position

JP3 is in the ROCADJ position

M1 is in the H position, M2 is in the L position and M3 is in the Lposition for dual axis Brushed DC or Stepper motor. In order to run

a single Brushed DC motor in parallel H-bridge mode the user must
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change the mode jumpers from their default setting. For this mode

M1 is in the L position, M2 is in the H position and M3 is in the L

position.

Switches S1 and S2 are in the middle position Make sure that the following switches are set as described below on the F28035

controlCARD to enable boot from flash and connection to the SCI

SW3: OFF (UP) position b. SW2: Position 1 = ON (UP), Position 2= ON (UP)

Connect a USB cable from J1 on the controlCARD to the host computer. LD4 onthe controlCARD will light up indicating that the USB is powered.

Windows will then search for a driver for the device. If the computer has CCSv4or prior versions of it installed which supported XDS100 emulator, Windows

should be able to find the driver successfully. If not you will be prompted to install

the driver. Installing driver for USB to serial: Do not let Microsoft search for the

driver, instead browse to the following location on the USB stick drive shipped

with the kit , windows should now be able

to find the driver and will install it. If Windows still does not find the driver, you

may have to repeat the process and point to the location pointed out previously.

You may have to reboot the computer for the drivers to come into effect. Once

installed you can check if the installation was completed properly by browsing to


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ControlPanel-> System->Hardware->Device Manager and looking for USB Serial

Port under Ports(COM&LPT). Note this port number down.

Connect the motor(s) you want to spin to the OUTA, OUTB, OUTC and OUTDterminals on the board. The table below shows the connections for the motors

included with the kit.

TERMINAL DUAL BRUSHED DC

OUT A Motor 1+

OUT B Motor 1-

OUT C Motor 2+

OUT D Motor 2-

Connect the included DC power supply to the PVDD and GND banana jacks. Once the power is connected the board will power up and you will see that the

LED1, LED2 and LED3 on the DRV8412EVM base board are green (indicating

power), LD1 on the controlCARD is green (also indicating power) and LD3 (Red)

on the controlCARD is blinking slowly indicating that code is running.


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EXPERIMENT PROCEDURE:

Make sure all the jumper and connector settings are as described in the Hardwaresetup section.

Browse to and double click on DRV8412GUIvX.exe The GUI window should popup.

The GUI should auto-detect and connect to your DRV8412-EVM. If auto-connectfails you will need to set up the connection manually. The Connection Wizard is

accessed through the Connection menu. Click on Connect to engine to view a

list of available targets. Now setup the Connection Wizard Dialog to match figure

5. Select Piccolo 28035 from the Target list and Serial for connection method.

You will need to determine the correct COM port number for your system. This

can be found by going to Control Panel->System->Hardware tab->Device

Manager->Ports(COM & LPT). And look for the one which is described as USBSerial Port or similar. Hit Connect once done


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If an incorrect image is flashed on the controlCARD the connection will fail. Inthis case it is recommended to reflash the controlCARD with the correct image.

After the connection is established to the controller the type of motor can beselected by choosing the corresponding tab in the GUI. If the selection needs to be

changed the board should be power cycled in order to safely connect a different

motor.

At the bottom of the screen are three sets of controls common to either motor type:o Enable Motor and Brake on Disable Check boxes: The Enable Motor

check box is used to start or stop the motor(s) from running. The Brake on

Disable check box selects the action when the motor is stopped. If

unchecked all H-bridge switches are opened on disable and the motor is

free spinning. If checked the low-side switches are held closed effectively

shorting the motor connections and causing an abrupt stop.

o Fault Status: The on-screen LED will turn red whenever there is a faultsignaled by the DRV8412. To reset this fault ensure Enable Motor check

box is unchecked and push the Reset Fault button.

o DC Bus Voltage: The measured DC bus voltage is displayed both digitallyand graphically. The on- screen LED can take three states depending on

whether the DC bus is in or out of range. The range can be adjusted

individually for each motor type on the settings tabs.

Yellow: DC bus is below the minimum value Green: DC bus is within limits Red: DC bus is above the maximum value

Driver Over-Temperature Warning: The state of the DRV8412 OTWn pin isdisplayed using an on-screen LED. The LED can take two states:

Yellow: The DRV8412 device temperate exceeds 125C Green: The DRV8412 device temperate is below 125C

(a)Voltage Mode ControloChoose the corresponding Port in the pop-up window (Preferable: USB

UART Device)

oUncheck the Closed Loop in Operation Block and choose Sine inModulation Block.

oClick Ok,oNow give the Speed Value in RPM then Click RUN.oNote down the speed, Frequency and Current readings


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(b)Current mode controloConnect the Feedback cable from the motor to Drive.oClick the Closed Loop in Operation blockoNow give the Speed Value then Click RUN.oNote down the speed, frequency and Current readings

TABLE

(a): Voltage Mode Control

S.No Voltage Current

(b): Current Mode Control

S.No Current Voltage

RESULT:

Thus the operation Micro controller based speed control of VSI fed three-phaseinduction motor has been studied.


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2. Micro controller based speed control of VSI fed three-phase induction

motor.

AIM

To study the operation Micro controller based speed control of VSI fed three-phase

induction motor

APPARATUS REQUIRED

1 RDK-ACIM motor Drive - 12 Micro USB Cable - 13 AC Induction motor - 14. Personal Computer - 1 Set5. Code Composer Studio

6 StellarisWare

7 LM Flash Programmer


Connect Micro USB Cable and drive board Connect the motor with RDK- ACIM Connect Computer with Micro USB, Connect the Power card with the RDK- ACIM Switch On the power Supply

Note: This setup run in High Voltage, ensure the setup is properly connected and after

shutdown also ensure the capacitor discharged.


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(c)Open Loop DriveoOpen the AC Induction Motor Drive Graphical User Interface from start

Menu >> All Programs >> Texas I nstruments >> Sellaris >> ACIMorC:\Pr ogramFil es\texas instruments\stell aris\ACI M

oChoose the corresponding Port in the pop-up window (Preferable: USBUART Device)

oUncheck the Closed Loop in Operation Block and choose Sine inModulation Block.

oClick Ok,oNow give the Speed Value in RPM then Click RUN.oNote down the speed, Frequency and Current readings

(d)Closed Loop

oConnect the Feedback cable from the motor to Drive.oClick the Closed Loop in Operation blockoNow give the Speed Value then Click RUN.oNote down the speed, frequency and Current readings

TABLE

(a): Open Loop Operation

S.No Set Speed Actual Speed Frequency Current

(b): Closed Loop Operation

S.No Set Speed Actual Speed Frequency Current

RESULT:

Thus the operation Micro controller based speed control of VSI fed three-phase

induction motor has been studied.


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3. Micro controller based speed control of Stepper motor.

AIM

To study the operation Microcontroller based speed control of stepper motor

APPARATUS REQUIRED

1 Stepper motor Drive (RDK-Stepper) - 12 Micro USB Cable - 13 Stepper motor - 14. Personal Computer - 1 Set5. Code Composer Studio

6 StellarisWare

7 LM Flash Programmer


Connect micro usb Cable and drive board Connect the motor with RDK- Stepper Connect Computer with micro usb, Connect the Power card with the RDK- Stepper Switch On the power Supply


(e)Chopper Drive

oOpen the Stepper Motor Drive Graphical User Interface from start Menu >>Al l Programs >> Texas I nstruments >> Sell ari s >> Stepperor

C:\ProgramFiles\texas instruments\stellaris\Stepper

oChoose the corresponding port in the pop-up window (Preferable : USBUART)


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oClick on the Configure button in that window choose Chopper in controlmode

oAnd chose Full in Step Mode, Fast in Decay Mode.oClick Ok,oNow give the Speed Value in Steps/sec and position then Click RUN..oNote down the speed and Current readingsoChange the step mode and Decay Mode then take the readings

(f)Open LoopoClick on the Configure button in that window choose Open Loop PWM in

control mode

oAnd chose Full in Step Mode, Fast in Decay Mode.oClick Ok,oNow give the Speed Value in Steps/sec and position then Click RUN.oNote down the speed and Current readingsoChange the step mode and Decay Mode then take the readings

(g)Closed LoopoClick on the Configure button in that window choose Closed Loop PWM in

control mode

oAnd chose Full in Step Mode, Fast in Decay Mode.oClick Ok,oNow give the Speed Value in Steps/sec, position and Click RUN.oNote down the speed and Current readingsoChange the step mode and Decay Mode then take the readings

TABLE

(a): Chopper Drive

Full Step Mode

S.No.Set

Speed

Fast Decay Mode Slow Decay Mode

Actual Speed Current Actual Speed Current


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Half Step Mode

S.No.Set

Speed



Micro Step Mode

S.No.Set

Speed



Wave Step Mode

S.No.Set

Speed



Open Loop PWM

Full Step Mode

S.No.

Set

Speed




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Half Step Mode

S.No.Set

Speed



Micro Step Mode

S.No.Set

Speed



Wave Step Mode

S.No.Set

Speed



Closed Loop PWM

Full Step Mode

S.No.

Set

Speed




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Half Step Mode

S.No.Set

Speed



Micro Step Mode

S.No.Set

Speed



Wave Step Mode

S.No.Set

Speed



RESULT:

Thus the operation of open loop, Closed Loop and Chopper Drive speed control of

DC motor using RDK-Stepper.


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4. DSP based speed control of BLDC motor.

AIM

To study the operation Digital Signal Processor based speed control of BLDC Motor.

APPARATUS REQUIRED

1 Stellaris BLDC motor Drive - 12 Micro USB Cable - 13 BLDC motor - 14. Personal Computer - 1 Set5. Code Composer Studio

6 StellarisWare7 LM Flash Programmer


Connect Micro USB Cable and drive board Connect the motor with RDK- BLDC Connect Computer with Micro USB, Connect the Power card with the RDK- BLDC Switch On the power Supply


(h)Open Loop DriveoOpen the Stepper Motor Drive Graphical User Interface from start Menu >>

Al l Programs >> Texas I nstruments >> Sell aris >> BLDCor

C:\Pr ogramFil es\texas instruments\stell aris\BLDC

oChoose the corresponding Device in the pop-up windowoClick on the Configure button in that window choose Sine in Modulation

Block.


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oClick Ok,oNow give the Speed Value in RPM then Click RUN..oNote down the speed and Current readingsoChange to reverse and set the speed then take the readings

(i) Closed LoopoClick on the Configure button in that window choose Sensorless in

Modulation Block.

oAnd choose Speed in Closed Loop Control then Click Ok, oNow give the Speed Value then Click RUN..oNote down the speed and Current readingsoChange to reverse and set the speed then take the readings

TABLE

(a): Chopper Drive

Full Step Mode

S.No.Set

Speed



(b): Closed Loop Drive

S.No.Set

Speed

Forward Mode Reverse Mode


RESULT:

Thus the operation of Digital Signal Processing based open loop and Closed Loop

speed control of BLDC motor has been studied.


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5. DSP based speed control of SRM motor.

AIM

To study the operation Digital Signal Processor based speed control of SRM Motor.

APPARATUS REQUIRED

1 DRV8301 - 12 Micro USB Cable - 13 DC motor - 1 set4. Personal Computer - 1 Set5. Code Composer Studio


Make sure nothing is connected to the board, and no power is being supplied to theboard.

Insert the Control card into the J1 controlCARD connector if not alreadypopulated.

Make sure the following jumpers & connector settings are valid on the DRV830xbase board i.e.

JP2 is installed Make sure that the following switches are set as described below on the F28035

controlCARD to enable boot from flash and connection to the SCI

SW3: OFF (UP) position SW2: Position 1 = ON (UP), Position 2 = ON (UP)


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Connect a USB cable from J1 on the controlCARD to the host computer. LD4 onthe controlCARD will light up indicating that the USB is powered. Windows will

then search for a driver for the device. If the computer has CCSv4 or prior

versions of it installed which supported XDS100 emulator, Windows should be

able to find the driver successfully. If not you will be prompted to install the

driver.

Installing driver for USB to serial: Do not let Microsoft search for the driver,instead browse to the following location on the USB stick shipped with the kit

, windows should now be able to find the driver and will

install it. If Windows still does not find the driver, you may have to repeat the

process and point to the location pointed out previously. You may have to reboot

the computer for the drivers to come into effect. Once installed you can check if

the installation was completed properly by browsing to ControlPanel-> System-

>Hardware->Device Manager and looking for USB Serial Port under

Ports(COM&LPT). Make note of this port number.

Connect the motor you want to spin to the OUT A, OUT B and OUT C terminalson the board.

Connect an 8-60V DC power supply at connectors J25 (PWR) and J26 (GND). Once the power is connected the board will power up and you will see that LED1

and LED3 on the DRV830x EVM base board are green (indicating power), LD1


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on the controlCARD is green (also indicating power) and LD3 (Red) on the

controlCARD is blinking slowly indicating that code is running.

EXPERIMENT PROCEDURE: Make sure all the jumper and connector settings are as described in the Hardware

setup section.

The GUI should auto-detect and connect to your DRV830x-HC-EVM. If auto-connect fails you will need to set up the connection manually. The Connection

Wizard is accessed through the Connection menu. Click on Connect to engine

to view a list of available targets. Now setup the Connection Wizard Dialog to

match Fig 4. Select Piccolo 28035 from the Target list and Serial for connection

method. You will need to determine the correct COM port number for your

system. This can be found by going to Control Panel->System->Hardware tab-

>Device Manager->Ports(COM & LPT). And look for the one which is described

as USB Serial Port or similar. Hit Connect once done.

If an incorrect image is flashed on the controlCARD, the connection will fail. Inthis case it is recommended to reflash the controlCARD with the correct image.

At the bottom of the screen are some common controls and board status indicators:o Enable Motor Check Box: The Enable Motor check box is used to start or

stop the motor from running.

o Control Mode Drop Down Box: Allows the selection of four differentcontrol modes


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Duty Cycle: The motor is commutated using the sensorlessalgorithm but is driven in an open-loop duty cycle mode.

Current: The motor is commutated using the sensorless algorithmwhile the current (torque) is regulated using a PI controller. (Note:

An unloaded motor will rapidly accelerate to a very high speed in

this mode.)

Velocity: The motor is commutated using the sensorless algorithmwhile the motor speed is regulated using a PI controller. The output

of the speed controller is a PWM duty cycle.

Cascade: The motor is commutated using the sensorless algorithmwhile the motor speed is regulated using a PI controller. The output

of the speed controller is a motor current command which is

regulated by a lower level current PI controller.

Fault Status: The on-screen LED will turn red whenever there is a fault signaledby the DRV830x. To reset this fault ensure Enable Motor check box is unchecked

and push the Reset Fault button.

DC Bus Voltage: The measured DC bus voltage is displayed both digitally andgraphically. The on- screen LED can take three states depending on whether the

DC bus is in or out of range.

Yellow: DC bus is below the minimum value Green: DC bus is within limits


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Red: DC bus is above the maximum value Driver Over-Temperature Warning: The state of the DRV830x OCTWn pin is

displayed using an on-screen LED. The LED can take two states:

Yellow: The DRV830x device temperature exceeds 130C Green: The DRV830x device temperature is below 130C

The Main GUI tab contains controls to vary the motor setpoint or view variousfeedbacks.

The Setpoint Knob takes on a separate function for each control mode.o Duty Cycle: The knob adjusts the PWM duty cycle to the motor.o Current: The knob adjusts the per-unit (PU) commanded current through

the motor. Note: The DRV830x-HC-EVMs have a measureable current

range of +/-82.5A which is normalized to a +/- 1.0 per-unit (PU) scale.

o Velocity: The knob adjusts the per-unit (PU) motor commanded speed.o Cascade: The knob adjusts the per-unit (PU) motor commanded speed.

The actual Motor Speed (RPM) is displayed through a digital display. The actual Motor Current (PU) is displayed using a linear gauge. The current

should increase with motor load.

The four graphs on the right display commutation and speed related data. Thetime scale of the top three graphs can be adjusted by incrementing/decrementing

the Graph Time Scalero Top Graph: Displays the per-unit (PU) integrated motor flux.o Second Graph: Displays the per-unit (PU) Phase A BEMF waveform.o Third Graph: Displays the per-unit (PU) Phase A current waveform.o Fourth Graph: Displays the motor speed in RPM. This graph runs in a

continuous strip chart mode and is not affected by the Graph Time Scaler.

The Flux Threshold slider is used to adjust the motors commutation point. The Settings tab contains parameters affecting motor startup and control loop

tuning.

(a)Voltage Mode ControloAfter done the above setup, Choose Velocity in Control BlockoClick the check box toEnable MotoroNow Change the Knob it change Speed Value in percentageoNote down the speed, Voltage and Current readings


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oAfter taken the reading uncheck the Enable Motor

(b)Current mode controloChoose Velocity in Control BlockoClick the check box toEnable MotoroNow Change the Knob it change Current in percentageoNote down the speed, Voltage and Current readingsoAfter taken the reading uncheck the Enable Motor

TABLE

(a): Voltage Mode Control

S.No Speed Voltage Current

(b): Current Mode Control

S.No Speed Current Voltage

RESULT:

Thus the operation Micro controller based speed control of VSI fed three-phase

induction motor has been studied.
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PED Manual for TI