STMicroelectronics UM2963 STEVAL-CTM012V1 Evaluation Board User Manual

: June 4, 2024
: STMicroelectronics

STMicroelectronics UM2963 STEVAL-CTM012V1 Evaluation Board

STMicroelectronics-UM2963-STEVAL-CTM012V1-Evaluation-Board-PRODUCT-
IMAGE

Getting started with the STEVAL-CTM012V1 evaluation board for 250 W mainstream compressors

Introduction

The STEVAL-CTM012V1 evaluation board is a three-phase inverter based on the STSPIN32F0601Q controller, which embeds a 3-phase 600 V gate driver and an Arm® Cortex®-M0 STM32 MCU.
The power stage features STD8N60DM2 MOSFETs.
The board supports both one-shunt and two- plus one-shunt sensing topology. You can set the shunt topology by opportunely populating a set of jumpers.
Moreover, you can implement a sensor less field-oriented control (FOC). This allows driving permanent magnet synchronous motors (PMSMs) and brushless DC (BLDC) motors to cover a wide range of applications, such as refrigerator compressors, pumps, fans, and industrial appliances.
The STEVAL-CTM012V1 evaluation board is compatible with a wide range of input voltages. It includes a power supply stage with the VIPER122 in buck configuration that generates +15 V and +3.3 V supply voltages required by the application.
The companion firmware is X-CUBE-MCSDK, available for download on www.st.com.
You can compile, debug, and configure the firmware through the STM32CubeIDE and B-STLINK-ISOL plus STLINK-V3SET.
SWD and UART TX-RX connectors are also available.
Figure 1. STEVAL-CTM012V1 evaluation board STMicroelectronics-UM2963
-STEVAL-CTM012V1-Evaluation-Board-01

Getting started

Safety and operating instructions

General terms
Warning: During assembly, testing, and normal operation, the evaluation board poses several inherent hazards, including bare wires, moving or rotating parts, and hot surfaces. There is danger of serious personal injury and damage to property if you improperly use or incorrectly install the board or its components. The board is not electrically isolated from the AC-DC input. The evaluation board is directly linked to the mains voltage. No insulation is ensured between the accessible parts and the high voltage. All measuring equipment must be isolated from the mains before powering the board. When using an oscilloscope with the demo, it must be isolated from the AC line. This prevents shock that derives from touching any single point in the circuit, but does not prevent shock when touching two or more points in the circuit.

All operations involving transportation, installation, and use, as well as maintenance, have to be carried out by skilled technical personnel (national accident prevention rules must be observed). For the purpose of these basic safety instructions, “skilled technical personnel” are considered as suitably qualified people who are familiar with the installation, use, and maintenance of power electronic systems.

Intended use of the board
The STEVAL-CTM012V1 evaluation board is designed for evaluation purposes only and must not be used for electrical installations or machinery.
The documentation details technical data and information about the power supply conditions that have to be strictly observed.

Evaluation board installation

The installation and cooling of the evaluation board must be in accordance with the specifications and target applications.
The motor drive converters must be protected against excessive strain. In particular, components should not be bent, or isolating distances altered during transportation or handling.
No contact must be made with other electronic components and contacts.
The board contains electrostatically sensitive components that are prone to damage if used incorrectly. Do not mechanically damage or destroy the electrical components (potential health risks).

Evaluation board operation
NOTE: Do not touch the evaluation board after it has been disconnected from the voltage supply as several parts and power terminals containing potentially energized capacitors need time to discharge.

A system architecture that supplies power to the STEVAL-CTM012V1 evaluation board must be equipped with additional control and protective devices in accordance with the applicable safety requirements (that is, compliance with technical equipment and accident prevention rules).

CAUTION: Follow the safety recommendations to operate the board. Use proper PPE, such as protective shields and glasses to avoid injuries due to malfunctions.

Features

Complete system solution made by ready-to-use hardware and firmware
Fitting wide range of applications supplied from the mains, rated up to 250 W:
- refrigerator compressors
- pumps and fans
- Industrial appliances
Very low stand-by power consumption and overcurrent/undervoltage protections
Based on STSPIN32F0601Q intelligent 3-phase motor controller with embedded STM32
STD8N60DM2 MOSFETs
Inverter power stage based on STGD5H60DF IGBT rated 600 V and 5 A
Compact size: 7.5 x 11.2 cm
Equipped with proven sensorless field-oriented control (FOC) firmware in one-shunt or 2+1 shunt topology
RoHS compliant

Target applications

Three-phase motor drivers
Fans
Pumps
Refrigerator compressors
Industrial appliances
Inverters

Hardware and software requirements

To use the STEVAL-CTM012V1 evaluation board, you need the following software and hardware:

A Windows PC (XP, Vista, Win 7, Win 8, or Win 10) to install the software package;
B-STLINK-ISOL plus STLINK-V3SET;
An isolated USB-to-UART wire to connect the board to the PC (optional);
X-CUBE-MCSDK (v5.3 or later);
STM32CubeMX (v4.24.0 or later);
A three-phase brushless PMSM DC motor with compatible voltage and current ratings;
AC mains power supply or external DC power supply
Any of the supported IDEs:
- IAR Embedded Workbench® for Arm® (v7.80.4)
- Keil® MDK tools (v5.24.2 or later)
- Ac6 System Workbench (v2.3.0 or later)
- STM32CubeIDE

Hardware description and configuration

Board components

The figures below show the position of the main circuitry blocks of the board.

Figure 2. STEVAL-CTM012V1 main components (top view) Figure 3. STEVAL-CTM012V1 main components (bottom view )

Shunt resistor configuration

You can configure the shunt resistors according to the desired operation:

SR1 = 0 Ω and SR2 = 0 Ω to operate in single shunt mode set by SR3 value = 0.1 ohm (default configuration);
Two-shunt plus one-shunt mode by setting:
- SR1 and SR2 to the desired value (that is SR1=0.1 Ω and SR2= 0.1 Ω);
- SR1: shunt for U phase current sensing;
- SR2: shunt for V phase current sensing;
- SR3: shunt for overcurrent protection.

Figure 4. STEVAL-CTM012V1 – shunt configuration

Overcurrent detection and current-sensing measurement

The STEVAL-CTM012V1 evaluation board implements overcurrent protection based on the STSPIN32F0601Q integrated comparator.
The SR3 shunt resistor measures the load current that brings the voltage signal to the CIN pin. When the phase peak current exceeds the selected threshold, the integrated comparator is triggered and all the power switches
are disabled. Power switches are enabled again when the current falls below the threshold and the output disable time expires, thus implementing a current limitation control.
By default, the evaluation board has an overcurrent threshold set to IOC_typ= 4.6 A and a restart time after fault detection of ~28 µs. You can change these values by changing SR3, C18, and R14.

Bus voltage circuit

The STEVAL-CTM012V1 evaluation board features bus voltage sensing.
You can set this signal through a voltage divider from the motor supply voltage (VBUS – R65, R66, and R5) and send it to the PA0 GPIO (ADC channel 0) of the embedded MCU. The input voltage is then downsized of a 200x factor.

Firmware debug

The “STEVAL-CTM01xV1 1shunt_FOC” folder contains a reference firmware generated for IAR v8.5. It works on the evaluation board with one shunt resistor (default configuration).
You can download the firmware through the SWD port as described in 5.
You can also generate the firmware and download it on the MCU through the SWD port.
The diagram below shows the workflow of the firmware generation and application debug process.
Figure 5. STEVAL-CTM012V1 – X-CUBE-MCSDK workflow

Note: To generate the firmware by using X-CUBE-MCSDK, follow the procedure below.
In this example, we use X-CUBE-MCSDK version 5.4.4, but you can use later versions, too.
Step 1. Launch X-CUBE-MCSDK.
Step 2. To start with an environment already set for the evaluation board, load the configuration file provided with the firmware package, named “STEVAL-CTM01xV1 1shunt_FOC.stmcx”.
Step 2a. Choose [Load Project] and select the file.
Step 2b. Alternatively, create a new project by selecting [New Project]>[Inverter]>[Custom board] and follow the next steps.
Step 3. Configure the motor parameters, start-up sequence, and all the relevant parameters according to the target application, as per the user manual in [Documentation]>[’Getting started with STM32 motor control SDK v5.x’].

Figure 6. X-CUBE-MCSDK configuration options

Figure 7. X-CUBE-MCSDK configuration example (1 of 2)

Figure 8. X-CUBE-MCSDK configuration example (2 of 2) Step 4. Click on the generate icon.

You can then generate the project according to your selected IDE environment.
The X-CUBE-MCSDK motor control workbench calls the STM32CubeMX in background to generate the project frame in the selected IDE.
When the firmware generation starts, a progress window shows that the script is running. When finished, the tip window appears. The user information table is updated accordingly.

Figure 9. X-CUBE-MCSDK firmware generation Step 5. After project generation, open the project file, compile, and download it onto the STSPIN32F0601Q device.

Figure 10. Project opened in the selected IDE

Figure 11. Project compiled

How to use the board

To start your project with the STEVAL-CTM012V1 evaluation board:
Step 1. Connect the motor to the CON_UVW connector.
Important: Pay attention to the motor phase sequence.
Step 2. Supply the evaluation board through the AC_IN AC mains connector.
Step 3. Develop your application using the STM32 FOC MC library.

Schematic diagrams

Figure 12. STEVAL-CTM012V1 circuit schematic (1 of 2)

Figure 13. STEVAL-CTM012V1 circuit schematic (2 of 2 ) STMicroelectronics-UM2963-STEVAL-CTM012V1-Evaluation-
Board-13

Bill of materials **

**

Table 1. STEVAL-CTM012V1 bill of materials

Item| Q.ty| Ref.| Part/Value| Description| Manufacturer| Order code
---|---|---|---|---|---|---

1

| ****

8

| ****

D1, D6, D7-12

| ****

BAT46ZFILM, SOD-123

| 100 V, 150 mA SMD

general- purpose signal Schottky diode

| ****

ST

| ****

BAT46ZFILM

2| 1| C17| 0805, 1.2 nF, 50 V,

±10%

| Capacitor| Kyocera AVX| 08055C122K4T2A

3

| ****

12

| C7, C9, C11, C13, C16, C20, C22-25, C32, C39| ****

0805, 50 V, ±10%

| ****

Capacitors

| ****

Wurth Elektronik

| ****

885012207098

4| 3| C8, C36-37| 150 pF, 0805, 50 V,

±10%, C0G/NP0

| Ceramic capacitors| Wurth Elektronik| 885012007058
5| 2| C18, C21| 0805, 10 nF, 50 V,

±10%

| Capacitors| Wurth Elektronik| 885012207092
6| 1| C12| 1500 pF, 0805, 50 V, C0G/NP0| Ceramic capacitor| Wurth Elektronik| 885012007064
7| 1| C68| 0805, 2.2 nF, 50 V,

±10%

| Capacitor| Wurth Elektronik| 885012007065
8| 2| C27, C29| 0805, 20 pF, 50 V,

±5%

| Capacitors| KEMET| C0805X200J5GACTU
9| 2| C26, C28| 0805, 33 pF, 50 V,

±5%

| Capacitors| Kyocera AVX| 08055C330JAT2A
10| 1| C14| 0805, 470 nF, 50 V,

±10%

12

| ****

1

| ****

C59

| CBB61, 0.1 µF, 630

V, through-hole, P = 15 mm 630 V, ±10%

| ****

Capacitor

| ****

Panasonic

| ****

ECQ-E6104KFA

13

| ****

2

| ****

C109-110

| CC, Y1, 471, 250

V, through-hole, P =

7.5 mm, 250 VAC,

±10%

| ****

Capacitors

| ****

Panasonic

| ****

ECW-F2474JAB

14| 1| C10| 10 µF, Ø5*L11, 50

V, ± 20%

| Capacitor| Wurth Elektronik| 860130673001
15| 1| C15| EC, 330 µF, 35 V Ø10L12.5| Capacitor| Wurth Elektronik| 860020575013
16| 1| C6| EC, 330 µF, 450 V Ø30L51| Capacitor| Wurth Elektronik| 861021485026
17| 1| C19| 470 µF, Ø8*L122,

35 V, ±20%

2

VAC through hole,P=5.08mm 250V

ohm, pitch 5 mm

| Fixed inductor| Wurth Elektronik| 7447480102
29| 1| L2| CMC 3.9 mH 1 A 2LN TH| Common mode choke| Wurth Elektronik| 7448640412
30| 1| U6| L78L33ACUTR| Positive voltage regulator| ST| L78L33ACUTR
31| 1| RV1| MOV_681| High surge varactor| Wurth Electronic| 820415511B
32| 1| R1| NTC_5D15,

through-hole, P = 7.5 mm, 5 Ω ±20%

(10R0) ±1%

mOhm typ., 8 A MDmesh DM2 power MOSFET in a DPAK

package

| ST| STD8N60DM2
49| 1| U2| STSPIN32F0601Q, TQFP 10×10 64PIN/ QFN10x10 72PIN| 600 V three- phase controller with MCU| ST| STSPIN32F0601Q
50| 2| D2 D5| STTH1L06A, SOD-123F| 600 V, 1 A

low drop ultrafast diode

| ST| STTH1L06A
51| 1| U3| TSV912ID, SO8| Wide bandwidth (8MHz) rail- to-rail input/ output 5 V CMOS op-

amp

| ST| TSV912ID
52| 1| U4| VIPER122, SSOP10| High-voltage converter| ST| VIPER122
53| 1| PCB| 113x76x1.6mm| FR4 TG 140,

CU thickness 35 microns

| Any| Any

Board versions

Table 2. STEVAL-CTM012V1 versions

Finished good	Schematic diagrams	Bill of materials
STEVAL$CTM012V1A (1)	STEVAL$CTM012V1A schematic diagrams	STEVAL$CTM012V1A

bill of materials

This code identifies the STEVAL-CTM012V1 evaluation board first version.

References

STSPIN32F0601Q datasheet
UM2380: “STM32 motor control SDK v5.x tools”
UM1718: “STM32CubeMX for STM32 configuration and initialization C code generation”
UM0892: “STM32 ST-LINK utility software description”

Revision history

Table 3. Document revision history

Date	Revision	Changes
13-Jan-2022	1	Initial release.
07-Feb-2022	2	Updated Section 1.1.4 Evaluation board operation.
05-May-2022	3	Updated introduction.

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