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UM0379 User manual - STMicroelectronics

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4. UM0379 ST User manual STM3210B MCKIT and STR750 MCKIT 3 phase motor control power stage Introduction This manual describes the MB459B motor control evaluation board The MB459B is an AC AC power converter that generates a three phase waveform for driving three phase motors such as induction motors or PMSM motors It includes e Aninput power stage with voltage rectification and auxiliary power supply e A7Athree phase inverter based on IGBT and level shifter e Amotor connector for linking with the control board e Aconnector for motors with Hall encoder and tachometer input The MB459B motor control evaluation board can be supplied in two ways e single power supply for motors requiring a voltage greater than 18 V e From a dual power supply for motors requiring a voltage less than 18 V This manual describes where the various components are located on the motor control board and the appropriate settings for driving a PMSM motor or an AC induction motor The MB459B board is delivered with the STM3210B MCKIT and STR750 MCKIT motor control kits For more information on these kits refer to www st com December 2007 Rev 2 1 21 www st com Contents UM0379 Contents 1 Hardware 1 3 2 Power supply 4 3 Operational amplifier configuration 5 3 1 Three shunt current reading con
5. i hH T eseud T i ozan 14 n Tr NOL 4N ri did 8094915 dWalvsie so iad F 1 ie 922 vzo 00 xuseoq 1 41000 my CLAW xusoH 82 19 pano MO Srzuopauno ga 4 E 4 SOSTAL gg zi St 8 sn amp TR raO 0219S LOLN 5 MOZL LY 4 mduoqov T AJ 101 ZS TEE SONS due xuisjeaH uongunByuoo Jejqnop Oy 10 eq oL E 1 00 LM ol 8 UM0379 Figure 9 808 O G vS ZVBLSIN or Revision history UM0379 9 20 21 Revision history Table 6 Document revision history Date Revision Changes 7 Feb 2007 1 Initial release 17 Dec 2007 Added list of changes to the MB459B board compared with the previous version in Section 8 Schematic diagrams Update for release of STM32B MCKIT motor control kit UMO379 Please Read Carefully Information in this document is provided solely in connection with ST products STMicroelectronics NV and its subsidiaries ST reserve the right to make changes corrections modifications or improvements to this document and the products and services described herein at any time without notice All ST products are sold pursuant
6. 1 Tachometer bias 0 6 V 2 Tachometer input Buc 4 15 21 Description of jumper and connector settings UM0379 Table 5 Connector pinout descriptions continued Name Reference Description pinout Motor control connector 1 EMERGENCY STOP 2 GND 3 PWM 1H 4 GND 5 PWM L 6 GND EDI 7 PWM 2H 8 9 PWM 2L 10 GND 11 PWM 3H 12 GND 13 PWM 3L 14 HV BUS VOLTAGE J 15 Current PHASE A 16 GND 17 Current PHASE B 18 GND 59 5 19 Current PHASE C 20 GND 21 NTC BYPASS RELAY 22 GND 23 DISSIPATIVE BRAKE PWM 24 GND 25 V Power 26 Heatsink temperature 27 PFC Sync 28 Vdd m 29 PWM Vref 30 GND 31 Measure Phase A 32 GND 33 Measure Phase B 34 Measure Phase C Hall sensors encoder input connector 1 5 1 Hall sensor input 1 encoder A J8 2 Hall sensor input 2 encoder 3 Hall sensor input 3 encoder 2 4 5V DC power supply amm 5 VSS board 16 21 UMO379 Schematic diagrams 8 Schematic diagrams The MB459B motor control evaluation board schematics
7. to ST s terms and conditions of sale Purchasers are solely responsible for the choice selection and use of the ST products and services described herein and ST assumes no liability whatsoever relating to the choice selection or use of the ST products and services described herein No license express or implied by estoppel or otherwise to any intellectual property rights is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE ST PRODUCTS ARE NOT RECOMMENDED AUTHORIZED OR WARRANTED FOR USE IN MILITARY AIR CRAFT SPACE LIFE SAVING OR LIFE SUSTAINING APPLICATIONS NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN
8. Connects the output of thermal comparator on shut down to the pin 2 input of the L6386 MOS driver In such Present cases the thermal protection can also generate an W6 emergency stop forcing the Fault signal to low Notprasant Disables feedback of thermal comparator on L6386 P MOS driver Set to default position of Selects the input polarization of Phase B current op amp TA silk screen printing for the three shunt configuration Set to reverse position of Selects the input polarization of Phase B current op amp silk screen printing for the single shunt configuration Sets the input resistor of Phase B current op amp for Present three shunt configuration W8 Not present Sets the input resistor of Phase B current op amp for single shunt configuration P Sets the gain resistor of Phase B current op amp for resent three shunt configuration W9 Sets the gain resistor of Phase B current op amp for Not present f single shunt configuration Set to default position of Connects R5 shunt resistor to T6 IGBT source for the Wd silk screen printing three shunt configuration Set to reverse position of silk screen printing Connects the T6 IGBT source to R4 shunt resistor for the single shunt configuration 13 21 Description of jumper and connector settings UM0379 Table 4 Jumper descriptions continued Jumper W11 Selection Present Description Connects the output of diagnostic com
9. PERSONAL INJURY DEATH OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ST PRODUCTS WHICH ARE NOT SPECIFIED AS AUTOMOTIVE GRADE MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER S OWN RISK Resale of ST products with provisions different from the statements and or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever any liability of ST ST and the ST logo are trademarks or registered trademarks of ST in various countries Information in this document supersedes and replaces all information previously supplied The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2007 STMicroelectronics All rights reserved STMicroelectronics group of companies Australia Belgium Brazil Canada China Czech Republic Finland France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Singapore Spain Sweden Switzerland United Kingdom United States of America www st com 21 21
10. are split into two sheets Sheet 1 2 Current Measurement Figure 8 shows the op amp wiring and configuration the encoder Hall sensor adaptation the tacho input stage and the motor control connector wiring Sheet 2 2 Power Switch Figure 9 shows the power converter with its associated level shifter and all auxiliary power supplies The version of the board described in this manual is MB459 B01 The board version information can be found on a sticker on the component side of the PCB the visible one on the bottom left edge of the board when reading the serigraphy The changes on this version of the board compared with the previous version MB459 B00 are summarized below Operational amplifiers have changed TSV994 replacing TSH24 The value of capacitors C37 C42 and C47 has increased from 10pF to 100pF The value of resistors R13 R23 and R52 has decreased from 2 2kOto 1 8kQ The D3 diode is now short circuited The board can also be driven by the STM3210B EVAL board 17 21 UM0379 Schematic diagrams current measurement Schematics sheet 1 2 Figure 8
11. asure Phase A TIM2 Tl1 input P0 03 W18 Present Not present Enables Hall2 B on Measure Phase B TIM2 TI2 input P1 03 Disables Hall2 B for Measure Phase B TIM2 TI2 input P1 03 W19 Present Enables Hall3 Z on Measure Phase C TIMO input P0 01 Not present Disables Hall3 Z for Measure Phase C TIMO Tl1 input P0 01 14 21 X UMO379 Description of jumper and connector settings Table 5 Connector pinout descriptions Name J1 Reference Description pinout Optional 15V DC 0 5A input connector to supply the motor control 2 1 board logic separately from the motor power stage 1 15V DC power supply 2 Vss power J2 15V DC output connector to supply auxiliary board This connector is not mounted 1 15 V DC power supply 2 VSS power J3 Up to 42V DC or AC power supply input connector 1 Earth ground 2 Power input AC DC 3 Power input AC DC N J4 BEMF daughter board connector 1 Phase A 2 Not connected 3 Phase B 4 Not connected 5 Phase C 6 Not connected 7 Bus voltage 8 Not connected 0 1 2 12 9 5V 10 Vdd_m 11 Vss board 12 PWM Vef J5 Motor three phase output 5 1 Motor phase C 2 Motor phase A 3 Motor phase B 4 DC bus middle point may be used for two phase motors 1 5 Earth J6 Tachometer input connector for AC motor speed loop control
12. figuration 5 3 2 Single shunt current reading configuration 7 3 3 Jumper configuration 9 4 Electrical specifications 10 5 Hardware settings for driving PMSM motors 11 6 Hardware settings for driving AC induction motors 12 7 Description of jumper and connector settings 13 8 Schematic diagrams 17 9 Revision history 20 2 21 437 UM0379 Hardware layout Hardware layout This section illustrates the main connectors of the MB459B motor control board see Figure 1 and describes their function Figure 1 459 connectors ya A Motor Centr ol Evaluation board Motor and board input power stage auxiliary power supply and voltage rectification Prototype area J3 connector power supply input J1 connector auxiliary supply input J8 connector Hall sensors encoder input J6 connector tachometer input for closed loop controlled AC motors J5 connector Three phase output to motor J7 motor connector link to STR75x and to STM3210B EVAL evaluation board or other control board 9 7A inverter and level shifter Qo NO Oe 3 21 Power supply UM0379 2 Caution Note 4 21 Power supply The MB459B motor control evaluatio
13. igure 7 Figure 7 Common op amp configuration 9 21 Electrical specifications UM0379 4 Electrical specifications Table 1 provides the maximum ratings for the MB459B motor control board Table 1 Motor control evaluation board electrical specifications Parameter Maximum ratings Motor types Three phase PMSM or AC motor Main input voltage J3 42V DC or 30 Veg AC Auxiliary input voltage J1 15V DC 0 5A Maximum output current on motor phases J5 7A The maximum current allowed on the motor phases is mainly dependent on the shunt resistor value and op amp gain For further information see Section 3 Operational amplifier configuration on page 5 10 21 UMO379 Hardware settings for driving PMSM motors 5 Hardware settings for driving PMSM motors To drive the PMSM motor you must simply ensure that the MB459B motor control board is driven by a control board that outputs the six signals required to drive the three phase power stage The MB469B STR75x evaluation board provided in the STR750 MCKIT or the STM3210B EVAL evaluation board provided with the STM3210B MCKIT are perfectly suited for this task To drive any other generic high voltage PMSM motor you must ensure that e your PMSM motor is connected on the motor control board in place of the PMSM motor provided on the J5 and J8 connectors e the motor phases are connected to the board on the J5 connector e
14. l power supply mode or motor plus motor control board power supply in single power supply mode Up to 42V DC or 30Veg AC 3 Whl jumper In single power supply mode selects the motor voltage in dual power supply mode it must be removed ky UMO379 Operational amplifier configuration 3 3 1 Operational amplifier configuration The MB459B motor control evaluation board can be configured to run in two current reading configuration modes e Three shunt configuration e Single shunt configuration Single shunt configuration requires a single op amp three shunt configuration requires three op amps and for compatibility purposes one of them must be common to the two configurations Jumpers W7 W8 and W9 allow you to set the common op amp to achieve the compatibility between single shunt and three shunt current reading mode The TSV994 used on the motor control board has a 20MHz gain bandwidth and operates with a single positive supply Three shunt current reading configuration Figure 3 gives the op amp configuration for the three shunt current reading mode In this configuration the alternating signal on the shunt resistor with positive and negative values must be translated to be compatible with the single positive input voltage of the microcontroller s analog to digital converter used to read the current value This means that the op amp must be polarized in order to obtain on the output a voltage that makes i
15. n AC Induction motor Jumper Settings for a generic AC motor with tachometer feedback W1 lt 35V Only HIGH VOLTAGE W4 Present W5 Not present W6 Present W7 Present and set to default position of silk screen printing W8 Present W9 Present W10 Present W11 Present W12 Present W13 Not present W14 Not present W15 Not present W16 Present any position W17 Not present W18 Not present W19 Not present UMO379 Description of jumper and connector settings 7 Description of jumper and connector settings Table 4 Jumper descriptions Jumper Selection Description HIGH VOLTAGE Motor supply is greater than 35V DC or 25 1 AC 35V Only Motor supply is less than 35V DC or 25Va AC Wi Power motor supply is separate from motor control circuit The motor control circuit must be supplied with Not present 15V DC 0 5A on J1 connector In this case the D3 short circuit must be removed unsoldered from the PCB Refer to Section 2 Power supply for details Connects R3 shunt resistor to T2 IGBT source for the Present a three shunt configuration Disconnects R3 from T2 IGBT source for the single Not present shunt configuration Connects the T2 IGBT source to R4 shunt resistor for the Present Ws single shunt configuration Disconnects the T2 IGBT source from R4 shunt resistor Not present for the three shunt configuration
16. n board can be supplied from a single power supply or from a dual power supply Single power supply for motors requiring a voltage greater than 18 V The power is supplied to the J3 connector The voltage must not exceed 42V DC or AC It supplies both the motor and the motor control board A 15V DC voltage is automatically generated for the motor control board logic However depending on the voltage supplied two cases are possible Ifthe supplied voltage is greater than 35V DC the W1 jumper must be set in HIGH VOLTAGE position Ifthe supplied voltage is between 18V and 35V DC W1 jumper must be set in the lt 35V ONLY position e Dual power supply for motors requiring a voltage less than 18 V The power for the motor is supplied to the J3 connector while a separate power supply for the motor control board logic must be applied to the J1 connector 15V DC 0 5 A In the case of dual power supply the W1 jumper must be removed and the D3 short circuit must be unsoldered this is to avoid having reverse current in the linear voltage regulator On the J3 connector the polarity of DC input is not important Figure 2 shows where the power supply connectors are located on the board Figure 2 MB459B power supply connectors 1 J1 connector 15V DC 0 5 A power supply input used in dual power supply mode to supply the motor control board logic 2 J3 connector motor power supply in dua
17. o it is necessary to polarize the it to compensate for this limitation Figure 5 shows the op amp configuration used in single shunt configuration Figure 5 Single shunt configuration The op amp is used in follower mode with a gain set by resistors r and R S v The relation between the input signal e and the signal v on the positive input of the follower is v U h k r4 f e with k 1 r3 1 r14 12 1 r4 h r1 r1 r2 f e 2 e r2 r1 r2 e rt K r1r2 r1r2 The resistor values implemented on the MB549B board are R 11000Q r 1000Q r1 1130Q 2 100001 r32220 V r4222000 and U 5V Therefore the gain is G 12 7 21 Operational amplifier configuration UM0379 8 21 The response of the op amp is shown in Figure 6 Figure 6 Voltage response in single shunt configuration Op_Amp Output 3 500 3 000 2 500 se e Series 1 1 000 0 500 0 000 Vout Op Amp 0 0 1 0 2 0 3 0 4 0 5 0 6 V shunt In this configuration the output voltage of the op amp is equal to 3 16V when the maximum peak current that is measured in R shunt is reached for shunt 0 1Qor 2 for shunt 0 220 UMO379 Operational amplifier configuration 3 3 Jumper configuration Based on the two current reading configurations for single shunt and three shunt the final configuration of the common op amp is summarized in F
18. parator to the EMGCY input of microcontroller pin P1 10 Not present Disconnects the output of diagnostic comparator from the Fault MC EMGCY input of microcontroller pin P1 10 W12 Present Connects the tachometer signal to Measure Phase A TIM2 Tl1 input P0 03 In that case W17 is not present removed Not present Disconnects the tachometer signal from Measure Phase TIM2_TI1 input P0 03 W13 Present The 3 3V Pow supply connected to Vdd m is used to supply the microcontroller board connected on pin 26 of the motor control connector J7 Not present Vdd miis not connected to the 3 3V Pow of power board W14 Present The 5V supply connected to Vdd m is used to supply the microcontroller board connected on pin 26 of the motor control connector J7 Not present Vdd_m is not connected to the 5V of the power board W15 Present Uses the 5V of the microcontroller board to supply the power board via the motor control connector J7 Not present The 5V of the power board is not supplied by the microcontroller board W16 Set to default position of silk screen printing The Vdd_m is used to supply the Hall sensor or encoder Set to reverse position of silk screen printing The 5V is used to supply the Hall sensor or encoder W17 Present Enables Hall1 A on Measure Phase A TIM2_TI1 input P0 03 Not present Disables Hall1 A for Me
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20. t possible to measure the symmetrical alternating input signal Figure 3 configuration 5 21 Operational amplifier configuration UM0379 The op amp is used in follower mode with a gain set by resistors r and R 5 The relation between the input signal e and the signal v on the positive input of the follower is v U k r3 e k r1 where k 1 r1 1 r2 1 r3 The resistor values implemented on the MB549B board are R 5400Q r 1000Q r126600 r225600 3247000 and U 5V Therefore the gain is G 6 4 The response of the op amp is represented in Figure 4 Figure 4 Voltage response in three shunt configuration Op_Amp Output m Series2 Vout Op Amp With these settings the output voltage of the op amp is equal to 1 94V for a nil current The peak current that can be measured in this configuration is 5A for R shunt 0 10hms 2 3A for R_shunt 0 22 ohms 6 21 UMO379 Operational amplifier configuration 3 2 Single shunt current reading configuration In the single shunt current reading configuration the current sampling is done only when the value on the shunt resistor is positive The only positive value read on the shunt resistor allows to set a higher gain for the op amp than the one set in three shunt mode However because the input of the op amp is not rail to rail in this configuration als
21. the encoder from the PMSM motor is connected to the board on the J8 connector For example for the Shinano PMSM motor provided with the STR750 MCKIT and the STM3210B MCKIT the connections are listed in Table 2 Table 2 Jumper settings for a PMSM motor default settings Jumper Settings for the supplied Settings for a generic high SHINANO 24V PMSM motor voltage PMSM motor T 85VOny 35V Only HIGH VOLTAGE WA Present W5 Not present W6 Present W7 Present and set to default position of silk screen printing W8 Present w9 Present W10 Present W11 Present W12 Not present W13 Not present W14 Not present W15 Not present W16 Present and set to reverse position of silk screen printing W17 Present W18 Present W19 Present 11 21 Hardware settings for driving AC induction motors UM0379 6 12 21 Hardware settings for driving AC induction motors To drive an AC induction motor you must ensure that e The motor control evaluation board is driven by an adapted control board that outputs the six signals required to drive the three phase power stage e The AC induction motor is connected on the motor control board in place of the motor e The AC induction motor phases are connected to the board on the J5 connector e The tacho generator is connected to the board on the J6 connector Table 3 Jumper settings for a

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