732-7676-1-ND [ONSEMI]
Motor Development Kit (MDK) 4 kW Board with Intelligent Power Module SPM31 650 V;型号: | 732-7676-1-ND |
厂家: | ONSEMI |
描述: | Motor Development Kit (MDK) 4 kW Board with Intelligent Power Module SPM31 650 V |
文件: | 总30页 (文件大小:5870K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Motor Development Kit
(MDK) 4 kW Board with
Intelligent Power Module
SPM31 650 V
SECO-MDK-4KW-65SPM31-
GEVB
www.onsemi.com
EVAL BOARD USER’S MANUAL
Description
The SECO−MDK−4KW−65SPM31−GEVB is a development board
for three−phase motor drives, part of the Motor Development Kit
(MDK). The board features the NFAM5065L4B Intelligent Power
Module in a DIP39 package and is rated for 400 Vdc input, delivering
continuous power in excess of 1 kW, with the capability of delivering
up to 4 kW power for a short period. The board is fully compatible
with the Universal Controller Board (UCB), based on the Xilinx
®
Zynq−7000 SoC, which embeds FPGA logic and two Arm
®
Cortex −A9 processors. As such, the system is fit for high−end
control strategies and enables operation of a variety of motor
technologies (AC induction motor, PMSM, BLDC, etc.).
Figure 1. SECO−MDK−4KW−65SPM31−GEVB
Features
• 4 kW Motor Control Solution Supplied with up to 410 Vdc
• Compatible with the Universal Controller Board (UCB)
FPGA−controller Based on Xilinx Zynq−7000 SoC
• Out of the Box Use Cases for FOC and V/F Control with Graphical
User Interface (GUI)
• Highly Integrated Power Module NFAM5065L4B 650 V/50 A
High Voltage 3−phase Inverter in a DIP39 Package
• DC/DC Converter Producing Auxiliary Power Supply 15 Vdc –
Non−isolated Buck Converter using NCP1063, DC/DC Converter
Producing Auxiliary Power Supply 5 Vdc – Non−isolated Buck
Converter using FAN8303, and LDO Producing Auxiliary Power
Supply 3.3 Vdc – using NCP718
Collateral
• SECO−MDK−4KW−65SPM31−GEVB
• Universal Control Board (UCB) [1]
• NFAM5065L4B (IPM) [2]
• NCP1063 (15 V non−isolated buck) [3]
• FAN8303 (5 V non−isolated buck) [4]
• NCP718 (3.3 V LDO) [5]
• NCS20166 [6]
(Op−Amp for Current Measurement)
• NCS2250 [7]
(Comparator for Over−current Protection)
• CAT24C512 (EEPROM) [8]
• Three−phase Current Measurement using 3 x NCS20166
Operational Amplifiers
• Three−phase Inverter Voltage and DC−Link Voltage
Measurement – using Resistive Voltage Divider Circuit
2
• 512 kB EEPROM I C – using CAT24C512
• Encoder Interface Compatible with either 3−HALL Sensors 1
Channel Quadrature Encoder
• Temperature Sensing via Build in Thermistor
• Over Current Protection using NCS2250 Comparator
Applications
• White Goods
• Industrial Fans
• Industrial Automation
• Industrial Motor Control
© Semiconductor Components Industries, LLC, 2020
1
Publication Order Number:
November, 2020 − Rev. 0
EVBUM2773/D
SECO−MDK−4KW−65SPM31−GEVB
Scope and Purpose
off before disconnecting any boards. It is mandatory to read
the Safety Precautions section before manipulating the
board. Failure to comply with the described safety
precautions may result in personal injury or death, or
equipment damage.
This user guide provides practical guidelines for using and
implementing a three−phase industrial motor driver with the
Intelligent Power Module (IPM). The design was tested as
described in this document but not qualified regarding safety
requirements or manufacturing and operation over the entire
operating temperature range or lifetime. The development
board has been layout in a spacious manner so that it
facilitates measurements and probing for the evaluation of
the system and its components. The hardware is intended for
functional testing under laboratory conditions and by
trained specialists only.
Prerequisites
All downloadable files are available on the board website.
• Hardware
♦ SECO−MDK−4KW−65SPM31−GEVB
♦ DC power supply (includes earth connection)
♦ Universal Control Board (UCB)
♦ USB isolator (5 kV optical isolation, also see Test
Procedure)
Hardware Revision – this user manual is compatible with
version 1.0 SECO−MDK−4KW−65SPM31−GEVB.
• Software
♦ Downloadable GUI
Attention: The SECO−MDK−4KW−65SPM31−GEVB is
exposed to high voltage. Only trained personnel should
manipulate and operate on the system. Ensure that all boards
are properly connected before powering, and that power is
♦ Downloadable UCB motor control firmware as boot
image
DESIGN OVERVIEW
This report aims to provide the user manual for the
development board SECO−MDK−4KW−65SPM31−
GEVB. This development board (from here on
MDK_SPM31) is a DC supplied three−phase motor drive
inverter intended for industrial motion applications < 4 kW
range. In this field, a trade−off between switching frequency
and power management is the key to fulfil the requirements
while providing a simple and robust solution. The system is
compatible with three phase motors (BLDC, Induction,
PMSM, Switched Reluctance etc.). The MDK_SPM31
power board is illustrated in Figures 2 and 3 (top and bottom
view, respectively). The block diagram of the whole system
is depicted in Figure 4.
The foremost advantages that this development board
brings are:
• System solution for industrial motor control applications
• Low component count with integrated IGBT power
module
• Design fit for different motor technologies
• Friendly user experience with Graphical User Interface
and selectable open loop/FOC closed loop control
• Rapid evaluation close to application condition
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SECO−MDK−4KW−65SPM31−GEVB
Figure 2. Picture of SECO−MDK−4KW−65SPM31−GEVB Board − Top Side
Figure 3. Picture of SECO−MDK−4KW−65SPM31−GEVB − Bottom Side
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SECO−MDK−4KW−65SPM31−GEVB
SPECIFICATION
The specification and main features are elaborated in
Table 1.
Table 1. MDK_SPM31 SPECIFICATIONS
Parameters
INPUT
Values
Conditions/Comments
Voltage DC
OUTPUT
Power
200−400 Vdc
Absolute maximum input voltage 410 V
1 kW (continues)
Input 200−400 Vdc
4 kW (short period)
Maximum operation period 15 min @ Ta = 25°C
Current per IPM Leg
2.5 Arms / 1 kW
(140 Vrms Phase voltage
and PF 0.98)
Lower output phase voltage will result in higher phase currents for
same power
Module Temperature at 25°C
Ambient
T
C
= 65°C after 25 min
Measured @ F
= 16 kHz; lower frequency will result to higher
PWM
@ 400 Vdc / 1 kW
ripple currents which might increase temperature
T
C
= 83°C after 8 min
@ 400 Vdc / 4 kW
CURRENT FEEDBACK
Current Sensing Resistors
Op−Amp Power Supply
Op−Amp Gain
10 mꢀ
3.3 V
Three 10 mꢀ, one for each phase
Generated by the NCP718 LDO
10
Via resistors
Op−Amp Output Offset
Current Measurement Resolution
1.65 V
0.016 A / bit
Because of negative current measurement requirement
Based on UCB integrated 11 bits ADC NCD98011 [9]
Configurable via the UCB
Current Measurement Sampling
Frequency
Up to 2 Msamples/sec
Measured Current Range
16.5 A
Configured by the shunt resistors and NCS20166 output offset and
gain
peak
Overcurrent Protection
+21.5 A
Configured by the shunt resistors and the − NCS2250SN2T3G −
comparator threshold
peak
(rise time delay 500 ns)
DC−LINK VOLTAGE MEASURING
DC−Link Voltage Range
0 V – 483.7 V
0.0068218
DC−Link Voltage Divider Gain
DC−Link Voltage Resolution
Configured by the voltage divider
0.236 V / bit
Based on MDK integrated 11 bits ADC
INVERTER PHASE VOLTAGES MEASURING
Phase Voltages Range
0 V – 241.7 V
Phase Voltages Divider Gain
Phase Voltages Resolution
0.0136495
Configured by the voltage divider
0.472 V / bit
Configured by MDK_SPM31 integrated 11 bits ADC
AUXILIARY POWER SUPPLIES MAXIMUM DEMAND
15 V
4.4 W
2.9 W
Generated by the NCP1063
Generated by the FAN8303
Generated by the NCP718
5 V
3.3 V
0.05 W
CONTROL (Note 1)
UCB
®
Pluggable via two polarized Bergstak 0.80 mm Pitch connectors
Type of Control (in Flash)
Supported Type of Motors
APPLICATION
V/f / FOC
ACIM, PMSM, BLDC
White Goods (Washers), Industrial Fans, Industrial Automation
1. It comes with a with a graphical user interface that is available through the link in [12]
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SECO−MDK−4KW−65SPM31−GEVB
BLOCK DIAGRAM
Figure 4. Block Diagram of the MDK_SPM31 Board
Out of a variable Vdc input (200–400 Vdc), the board can
simplifies the development, reducing the time−to−market of
deliver continuous power in excess of 1 kW or up to 4 kW
for a short period to a three−phase motor. The foremost
circuitries conforming the system are, the auxiliary power
supplies, the current and voltage sensing, the overcurrent
protection, and of course the three−phase inverter, build with
the NFAM5065L4B IPM. Figure 4 illustrates the overall
view of the above circuitries.
new solutions.
Protection function in the system include under−voltage
lockout, and external hardware shutdown for over−current
protection via a comparator−based trigger event, which is
currently configured at +21 A via the current sense and
voltage−divider selection. By changing the voltage divider
resistors, the designer can change the over−current
protection threshold. Finally, external shutdown via
software is also possible (via CIN pin), allowing the user to
define a multilayer current protection function.
Inverter Stage with Intelligent Power Module (IPM)
Technology
The inverter power stage is the backbone of this
development board and it performs the DC/AC conversion.
It utilizes the NFAM5065L4B IPM module, a fully integrated
power stage for three−phase motor drives consisting of six
IGBTs with reverse diodes, an independent high side gate
driver, LVIC, and a temperature sensor (VTS). The IGBT’s
are configured in a three−phase bridge with separate emitter
connections for the lower legs to allow the designer
flexibility in choosing the current feedback topology and
resolution. This module leverages the Insulated Metal
Substrate (IMS) technology from ON Semiconductor.
Packaged in the DIP39 format, the NFAM5065L4B (from
here on IPM) not only provides a highly integrated, compact
and rugged solution, but also best−in−class thermal
management capabilities. In short, the module enables lower
component count designs for industrial motor drives and
In this development board the DC−Link, which is
provided by an external power supply, serves as the power
input to the inverter module. The module needs to be
supplied as well with 15 Vdc, necessary for the IGBT gate
drivers, 5 Vdc necessary for the MDK_SPM31, as well as
with 3.3 Vdc voltage necessary for the current measurement
Op−Amps and over−current protection comparators. The
auxiliary power supplies that have been referred earlier
(NCP1063, FAN8303, and NCP718) in the document
provide these voltage rails.
IPM_FAULT and T_MODULE (temperature) are the
output signals from the IPM module, which are routed to the
UCB controller and can be used by the end−user for control
and protection purposes. All operational input and output
signals and the corresponding voltage references are
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SECO−MDK−4KW−65SPM31−GEVB
described in more detail in the UCB Controller section and
digital peripheral, bootloader capability via micro SD card,
USB/UART/JTAG interface, 32 Mbyte Flash memory,
32−Bit−wide 256 MByte DDR3 SDRAM, on−board
Ethernet phy, 10 ADC channel – using ON Semiconductor
NCD98011), and 12 complementary PWM channels. The
UCB is an industrial−grade System on Module (SoM) that
can be used for advanced networked motor and motion
control systems, capable of delivering advanced control
strategies for different types of motors (AC induction motor,
PMSM, BLDC).
The UCB controller interacts with the power board via
specific pins, which are routed to two − 120 pins each –
connectors. More details around the connectors can be found
in Board Connectors. Auxiliary 5 Vdc and 3.3 Vdc power
supplies can be used for powering−up the UCB board. They
are located at the main power board. Alternatively, the UCB
can be powered−up from the 5 Vdc USB cable, which is
connected to the controller. Then, the UCB generates all the
voltage rails (3.3 Vdc included) that are required for its
proper operation. In addition, it also delivers (independently
of the main auxiliary supplies) the necessary 5 Vdc and
3.3 Vdc reference voltages for the Op−Amps and
comparators on the power board. Therefore, functionality of
the controller, as well as the functionality of the Op−Amps
and comparators can be evaluated even when the main
power board auxiliary supplies are off.
in Low−power Connectors, High−power Connectors, and in
Appendix. The applied design has been influenced by the
AND9390/D [10] and the NFAM5065L4B [2] data sheet.
Current Measurement
The development system is round out by the NCS2250
High Speed Comparator, the NCS20166 precision
low−offset Op−Amp, and the NCD98011 UCB integrated
ADC module. Currently, ADC resolution is 11−bit resulting
in an overall resolution of 0.016 A/bit, while the range of
phase−current measurement is set to 16.5 A. The
NCS20166 gain selection, the current sense resistor
selection, and the NCD98011 ADC module that is integrated
in UCB define the overall current resolution. The overall
resolution and maximum current range can be found in
Table 1. More details around the SAR concept and
NCD98011 can be found in [9].
DC−Link and Inverter Phase−voltages Measurement
The DC−Link and inverter phase−voltage are both sensed
via resistive voltage divider circuits, where the scaled−down
voltage signals are used as inputs for the integrated UCB
ADC −NCD98011 − modules. As mentioned above, overall
resolution and maximum voltage range can be found in
Table 1.
Finally, the UCB provides the control capabilities of the
system, and supports the user interface communication. End
user can develop its own applications to exploit the UCB
features and capabilities. As mentioned earlier the
MDK_SPM31 power board provides all the required
feedback to the UCB for the generation of PWM driving
signals to control the IGBT module gate drivers as well as
to enable/disable the module in the event of faults arising.
This allows end−user to develop many different control
strategies from simple V/F and Field Oriented Control
(FOC) up to predictive control algorithms. Moreover, the
UCB enables bidirectional serial communication to transfer
measurements data for visualization purposes. A Graphical
User Interface is provided, along with an appropriate code
in flash that can run a simple V/F control or an FOC and
allow visualization of key electrical quantities. More details
around the software can be found in Software section. The
interface header pinout of MDK_SPM31 is described in
detail in Board Connectors. A detailed description of the
UCB connector can be found in Appendix. Finally, the
documentation around UCB can be found in [1].
Over−current Protection and Under Voltage Protection
Fault
The hardware over−current protection leverages the
disable−option on the IPM. This function exploits the
disable pin (CIN pin) of IPM, via the ITRIP signal that is
provided to the power module by the NCS2250 comparator.
The disable−pin (CIN pin) is also controlled by UCB
controller, allowing the end−user to configure a multilayer
overcurrent protection. Finally, the end−user may also
leverage the output fault signal of IPM (VFO), using the
UCB controller. Note that VFO output is routed to UCB. As
such, when a fault arises the software can use VFO output
accordingly to shut down system operation or take other
actions. Note that the above protection mechanism is
implemented in software level, and as such it might be
subjected to delays or spurious tripping if not properly
handled.
UCB Controller
The UCB is a powerful universal motor controller that is
based on SOC Zynq 7000 series [11]. It includes a dual
667 MHz CPU Cortex A9 core, with freely configurable
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SECO−MDK−4KW−65SPM31−GEVB
Auxiliary Power Supplies
supplies can be found in the corresponding ICs data sheets,
[3], [4], and [5], respectively. Last but not least, the power
rating of the auxiliary power supplies can be found in
Table 1.
There are three auxiliary supplies on the power board to
provide the necessary 15 Vdc, 5 Vdc, and 3.3 Vdc rails. The
first one is a non−isolated buck converter using NCP1063.
This auxiliary supply provides the 15 Vdc, which are
necessary for the IPM drivers. The NCP1063 high−voltage
switcher serves well this purpose, featuring a built−in 700 V
EEPROM
The main power board is equipped with the CAT24C512
EEPROM unit. The CAT24C512 is an EERPOM Serial
MOSFET with R
of 11.4 ꢀ and 100 kHz switching
DS(on)
2
512−Kb I C, which is internally organized as 65,536 words
frequency. NCP1063 is fed directly from the high−voltage
DC−Link. A minimum 90 V DC−Link voltage is required
for operation. Next, the FAN8303 non−isolated buck is used
to convert the 15 Vdc to the 5 Vdc that is necessary for the
UCB controller circuitry. Last but not least, the LDO
NCP718 converts the 5 Vdc to 3.3 Vdc, necessary for the
current measuring and protection circuitry, and for the
integrated UCB NCD98011 ADC modules. The
non−isolated power supplies provides a simple and effective
solution for industrial and commercial motor control
applications. More details about the auxiliary power
of 8−bits each. It features a 128−byte page write buffer and
supports the Standard (100 kHz), Fast (400 kHz) and
2
Fast−Plus (1 MHz) I C protocol. External address pins
make it possible to address up to eight CAT24C512 devices
on the same bus. The device Serial Click and Serial Data pins
of the CAT24C512 (pins DIO_1_1, DIO_1_2) are routed to
the UCB controller B35 buss (B35_L16_N and B35_L16_P,
respectively), via CON4 (pin 13 and pin 14). The data sheet
of CAT24C512 EEPROM device can be found in [8].
SCHEMATIC AND DESIGN
To meet customer requirements and make the evaluation
board a basis for development, all necessary technical data
like schematics, layout and components are included in this
chapter. This section will also discuss the design remarks,
trade−offs and recommendations for the design.
15 Vdc auxiliary power supply. The design and sizing of the
passive components has been inspired by the applications
notes in [3]. The desired output voltage value can be set by
tuning the values of the voltage divider (R1 and R3)
connected to the FB pin. Additionally, the value of C6 on the
COMP pin is tuned empirically to reflect the desired voltage
at the converter output. It is noted that the frequency Jittering
function helps spreading out energy in conducted noise
analysis. To improve the EMI signature at low power levels,
the jittering remains active in frequency foldback mode.
Finally, the switching frequency is 100 kHz, which allows
designs with small inductor (for this design we used 560 ꢁ H,
see L2) and output capacitance requirements (for this design
we used two 220 ꢁ F, see C8 and C9) and low current ripple
output.
NCP1063 15 V Auxiliary Power Supply
As mentioned earlier, there are three Auxiliary power
supplies that generate the necessary voltage rails for the
proper function of the MDK_SPM31 and UCB controller
boards. The NCP1063 is a non−isolated buck that is used as
converter from DC−Link to 15 Vdc output, to supply the
IPM board, as well as the UCB board and Op−Amp circuitry
through the FAN8303 and NCP718. The maximum power
demand is up to 4.6 W. Figure 5 depicts the schematic of the
Figure 5. Schematic of Auxiliary 15 Vdc Power Supply
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SECO−MDK−4KW−65SPM31−GEVB
FAN8303 and NCP718 Auxiliary Power Supplies
The FAN8303 is a non−isolated buck that is used as
converter from 15 Vdc to 5 Vdc output. The maximum
power demand is 2.9 W. Figure 6 depicts the schematic of
the 5 Vdc auxiliary power supply. Similarly to the
NCP1063, the design and sizing of the passive components
has been inspired by the applications notes in [4]. The
desired output voltage value can be set by tuning the values
of the voltage divider (R5 and R6) connected to the FB pin.
Additionally, the value of C17 on the COMP pin is tuned
empirically to reflect the desired voltage at the converter
output. The controller operates at fixed 370 kHz with an
efficiency up to 90%. This allows a design with only 22 ꢁ H
magnetizing inductance (see L3) and two 22 ꢁ F capacitors
(see C13 and C14). Finally, Figure 6 depicts the NCP718
LDO, which is responsible for the 3.3 Vdc rail generation.
Figure 6. Schematic of Auxiliary 5 Vdc and 3.3 Vdc Power Supply
Inverter Stage: Compact Intelligent Power Module
(IPM) Technology
the schematic of the inverter stage and the necessary
circuitry around it. Finally, Figure 8 depicts the DC−Link
voltage (voltage divider containing R46, R52, R53 and R55)
and the inverter output phase−voltage measurement
circuitry (voltage divider for phase−U containing R31, R34,
R40 and R42; voltage divider for phase−V containing R32,
R35, R41 and R43; and voltage divider for phase−W
containing R29, R33, R39 and R44). The inverter output
voltage phases can be used by the software for zero crossing
detection or other control purposes. The signals from the
10 mꢀ shunt resistors are going to current measurement and
over−current protection circuits. Details regarding the ADC
resolution of the above sensed electrical quantities can be
found in Table 1. Next paragraphs are dedicated to the
elaboration of the above mentioned circuitries.
This subsection shows how the necessary circuitry for
operation, measurement and protection is setup around the
NFAM5065L4B IPM. In addition, it illustrates the necessary
circuitry to provide and capture the signals around the
module (i.e. the output signals: T_MODULE, IPM_FAULT;
and the input signals: ITRIP, IPM_DIS, and gate driver
signals INH_U, INH_V, INH_W, INL_U, INL_V, INL_W).
Finally, it illustrates the provision of the voltage rails for the
IPM (15 Vdc rail reference), as well as the measurement of
the DC−Link and inverter−phase voltages. Activation of
IPM stage (connection to 15 Vdc power supply) is via J1
(soldered pads). Figure 7 shows the J1 pads at the bottom
side of the board; mind that pads should be soldered together
to enable the 15 Vdc to the IPM. Following, Figure 8 shows
Figure 7. J1 Pads at the Bottom of the Board (the Pads should be Soldered to Enable the 15 Vdc in the IPM)
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SECO−MDK−4KW−65SPM31−GEVB
Figure 8. Schematic of – IPM – Inverter Stage
Considering that the reference voltage for the ADC
which results to a resolution of:
NCD98011 modules is 3.3 Vdc, the resistors of the DC−Link
voltage measurement were designed according to the
241.7
211
VU,V,W*Link,res
+
+ 0.472 V
following voltage divider formula, where V
voltage arriving at NCD98011:
is the
ADC
Please note that the inverter phase voltage measurement
with the currently used resistors will be saturated for
DC−Links higher than 241.7 V, as demonstrated in the
figures below. However, this configuration allows detection
of the zero crossing BEMF with increased accuracy, as you
can compare the inverter output phase with the half of the
DC−Link voltage. It should be noted that with the currently
used resistor network, the inverter output phase−voltage
could be used only to detect the BEMF zero crossing for
trapezoidal−type controls with respect to the half of the
DC−Link voltage. For different zero−crossing detection
methods, such as the reconstruction of inverter neutral
voltage in software, or for different control algorithms
where the full range of inverter phase voltages is required,
you should replace the three bottom 13.7 kꢀ resistors R42,
R43, R44 with 6.8 kꢀ ones. The main reason of using this
limited voltage range for the inverter output phase is to
increase the voltage resolution around the BEMF zero
crossing, where only two out of three inverter phases are
energized.
VADC + VDC*Link @ R13 @ (R10 ) R11 ) R12 ) R13) v 3.3 V
To minimize the current flowing through the voltage
divider and also power losses, the values of resistors should
be chosen in hundreds kꢀ. With the chosen values of
resistors, the maximal possible measured V
can be:
DC−Link
(R10 ) R11 ) R12 ) R13
)
VDC*Link,max + 3.3 @
+ 483.7 V
R13
As the DC−Link maximum allowed value is 410 V, we
have around 15% margin.
As discussed earlier, the effective resolution of the ADC
NCD98011 is 11−bit, which results in a total resolution of:
483.7
211
VDC*Link,res
+
+ 0.236 V
On the other hand, the maximum possible measured
voltage for the inverter output phases can be:
(R31,32,29 ) R34,35,33 ) R40,41,39 ) R42,43,44
)
VU,V,W,max + 3.3 @
R42,43,44
+ 241.7 V,
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SECO−MDK−4KW−65SPM31−GEVB
Figure 9. Actual and Measured Voltage Phase with Currently used Voltage Divider
Figure 10. UCB UART Disable via Soldering R70 at MDK Board
On Board (UCB) UART
whereV
is the maximum voltage at NCD98011 ADC
ADC,max
The UART module that is integrated at UCB can be
disabled by soldering R70. To allow UART communication
at UCB you should keep R70 empty, as in Figure 10.
modules (i.e. 3.3 V as mentioned earlier), V
is the
offset
external offset for the Op−Amps (i.e 1.65 V), G is the
Op−Amps gain (i.e is 10), and R is the value of the shunt
shunt
resistors (i.e 0.01 ꢀ). The total resolution considering also
the NCD98011 ADC modules is:
Current Measurement and Over−Current Protection
The maximum current that can be measured with the
existing circuitry can be calculated as:
16.5 @ 2
211
Ires
+
+ 0.016 A
V
ADC,max * Voffset
Considering the layout design, a good practice consists of
using kelvin sensing and place the op amp as close as
possible to the shunt resistors as illustrated in Figure 11.
Imax)
+
+ 16.5 A
G @ Rshunt
* (Voffset
)
Imax*
+
+ −16.5 A,
G @ Rshunt
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SECO−MDK−4KW−65SPM31−GEVB
R
shunts
Op−Amps
Figure 11. Block Diagram of One Phase Current Measurement and Layout of the Current Measurement Parts
The schematic of current measurement and over−current
protection can be seen in Figure 12. As mentioned above the
information of currents is provided via the 10 mꢀ shunt
resistors. The voltage across the shunt resistor is used as
input to the NCS20166 Op−Amps, the gain of which is set
to 10 via the 1 kꢀ and 10 kꢀ resistor, according to
Figure 11. U9 (TLV431) is generating the 1.65 Vdc voltage
reference, which is connected to the non−inverting input of
Op−Amps through a 10 kꢀ resistor − as in Figure 11. This
connection provides voltage offset at the output of the
Op−Amps, which is needed for negative current
measurement.
Figure 12. Schematic of Current Measurement Circuitry
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SECO−MDK−4KW−65SPM31−GEVB
IPM can be shut−down by setting the voltage level of the
controller. The interconnections/routing of the signals that
are associated with the connectors of the MDK_SPM31, as
well as the power−connectors of the board are described
later in this subsection.
CIN pin to 0.5 V or higher. The NCS2250 comparator is
responsible for asserting the CIN pin high, protecting the
board against an overcurrent incident (the output of the
overcurrent comparator drives ITRIP signal, which is routed
to CIN, Figure 8). CIN pin is also controlled by the UCB
controller, which allows the end−user to design multilayer
protection. Comparator threshold is set by a voltage divider,
which consists of the R65 and R69 resistors. That threshold
is compared against the non−inverting pin voltage, which
comes from the voltage across the shunt resistors R60, R64
and R66. The comparator also incorporates a hysteresis loop
by providing a feedback to the non−inverting pin via the R63
resistor. Based on the above selected resistors the tripping
threshold corresponds to +21 A. To prevent spurious
operation of comparator, a low pass filter is implemented,
formed by the capacitor C68 along with resistors R60, R64,
and R65. The cut−off frequency of the formed low−pass
filter results in a delay of around 500 ns, which is sufficient
for the fast reaction of the current protection.
On top of that, IPM asserts fault pin (VFO), which can be
used by the UCB to shut down the inverter. The voltage level
of that pin is low during normal state. After a fault
occurrence at the driver, the output of fault pin is switched
high. The output of fault pin is held on for a time determined
by the C44 capacitor (15 nF) that is connected to the CFOD
pin (IPM pin 25), which can be used by the software for
further actions. The equation that gives the on time of the
Low−power Connectors
The MDK_SPM31 board has seven connectors in total.
Five of those connectors (CON7, CON6, J4, and CON4 and
CON5,) interfere with the various low−power signal and
voltage rails, while the rest two connectors handle the high
dc−input and the three−phase ac−output high power
voltages.
Figures 13−15 depict the low power connectors
schematics of the board along with their physical
visualization.
CON7 (Figure 13) can be used as an interface between the
encoder and the UCB controller, enabling sensored−FOC
control algorithms.
Encoder Interface
1
2
3
4
5
5 V
3_GND
DIO 2 7
DIO 2 6
DIO 2 5
CON7
Figure 13. Schematic and Physical
Visualization of Encoder Interface
pulse (ton ) is:
fault
tonfault + 0.1 @ 106 @ C44 + 1500 ꢁ s
The connector CON6 gives access to additional digital
I/O, PWM, and ADC pins of the UCB controller. Low pass
filters for current and/or voltage measurement signals are
placed closed to the headers (see Figure 14).
Board Connectors
MDK_SPM31 comes with several connectors that allow
the board to interact with external systems, such as encoders
and different control platforms (i.e. UCB). MDK_SPM31
also carries the appropriate connectors to host the UCB
Figure 14. Schematic and Physical Visualization of CON6
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12
SECO−MDK−4KW−65SPM31−GEVB
CON4 and CON5 are hosting the UCB controller
(Figure 15). Most of the signals that are associated with the
low−power connectors are routed to the UCB controller via
CON4 and CON5. On the contrary, signals like the
IPM_DIS, and the PWM pulses are directed from CON4 and
CON5 to the NFAM5065L4B inverter for control purposes.
Figure 15. Schematic of Current Measurement Circuitry
High−power Connectors
earth, the red connector should be connected to the high
potential (+), and the black to the ground (−). The inverter
output voltages, on the other hand, are available through the
connector CON3 (see Figure 17). The output voltage U, V
and W sequence is shown in Figure 17.
The high−power connectors that are associated with the
input and output system voltages are illustrated in
Figures 16 and 17. Figure 16 illustrates the DC−Link input
voltage, where the green connector should be connected to
U
V
W
Figure 16. DC−Link Input Voltage Connector
Figure 17. Inverter Output Voltage Phase Connector
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13
SECO−MDK−4KW−65SPM31−GEVB
Additional Connections to the UCB Controller
Finally, Figure 18 depicts some additional connections
from MDK_SPM31 to the UCB controller.
Figure 18. Connections to the UCB
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14
SECO−MDK−4KW−65SPM31−GEVB
SOFTWARE
FOC has been widely used during the last decade as an
executable Serial_Gui file. With the GUI, the user can select
between the V/F and FOC strategy. The GUI also assists the
end−user to configure and tune the foremost V/F and FOC
parameters, while it also provides visual representation of
key electrical variables, such as the DC−Link voltage and
temperature of IPM, the RMS value of the inverter output
current and voltage, and the motor speed.
efficient way to control various types of motors over wide
speed ranges. The controller optimizes the efficiency of the
system as it produces the required motor torque with the
lowest possible phase−currents, by maintaining a 90o angle
between the rotor flux and current. Moreover, it provides
fast dynamic response and a low current harmonic content.
Numerous scientific and technical papers in literature
describe thoroughly the FOC operation. We would like to
note that the analysis of FOC falls beyond the scope of this
document. For a more comprehensive description of FOC
operation, the reader may refer to the corresponding
references. [13−15].
Rewriting Flash Memory or SD−card Image
(Important when UCB not acquired as part of the
SECO−MDK−4KW−65SPM31−GEVK)
In case the user wants to rewrite the flash memory with the
default V/F−FOC control, he can use the boot−image and
fsbl.elf files that are accessible via the link in [12]. To
download the boot−image and fsbl.elf, click the link in [12]
and download the latest version of software; boot−image
and fsbl.elf files are included in the UCB_firmware of the
downloaded software file.
UCB with Pre−flashed Firmware
(UCB acquired as part of SECO−MDK−4KW−65SPM31−
GEVK)
If you acquired the UCB as part of the ON Semiconductor
kit, the controller is already flashed with V/F control and
FOC control. The user does not have to perform any further
actions for booting. It is noted however, that booting from
the flash, the SD−socket at UCB should be empty. With the
flashed controller, the user can control the motor via the
graphical user interface (GUI) of Figure 19; to download the
GUI, click the link in [12], download the latest version of
software, open the MDK_GUI zip file, and run the
The following guide contains material on how to load the
boot image:
• Flashing QSPI memory [16] (link).
To boot from SD card, copy the boot image that is found
in [12] into the root directory of the SD card. Then place the
SD card into the SD socket of UCB. Upon power−up the
UCB will automatically boot from the SD card.
Figure 19. Graphical User Interface (GUI)
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15
SECO−MDK−4KW−65SPM31−GEVB
TESTING AND OPERATION
This section describes how to test and operate the
Attention:
The SECO−MDK−4KW−65SPM31−GEVB
development board and present the test results. At the
beginning the Safety and Precautions are described, which
are a mandatory read before manipulating the board.
is
powered by external DC power supply, and is
exposed to high voltage. Only trained personnel
should manipulate and operate on the system.
Ensure that all boards are properly connected
before powering, and that power is off before
disconnecting any boards. It is mandatory to read
the Safety Precautions Table before manipulating
the board. Failure to comply with the described
safety precautions may result in personal injury or
death, or equipment damage.
Safety Precautions
This section describes the Safety Precautions which are
a mandatory read before manipulating the board.
Table 2. SAFETY PRECAUTIONS
1
2
3
Ground Potential
The ground potential of the system is biased to a negative DC bus voltage potential. When
measuring voltage waveform by oscilloscope, the scope’s ground needs to be isolated.
Failure to do so may result in personal injury or death.
USB Isolation
The ground potential of the system is NOT biased to an earth (PE) potential. When
connecting the MCU board via USB to the computer, the appropriate galvanic isolated USB
isolator have to be used. The recommended isolation voltage of USB isolator is 5 kV.
DC BUS Capacitors
SECO−MDK−4KW−65SPM31−GEVB system contains DC bus capacitors which take time
to discharge after removal of the main supply. Before working on the drive system, wait ten
minutes for DC BUS capacitors to discharge to safe voltage levels. Failure to do so may
result in personal injury or death.
4
Trained Personnel
Only personnel familiar with the drive and associated machinery should plan or implement
the installation, start−up and subsequent maintenance of the system. Failure to comply may
result in personal injury and/or equipment damage.
5
6
Hot Temperature
ESD
The surfaces of the NFAM5065L4B and development board drive may become hot, which
may cause injury.
SECO−MDK−4KW−65SPM31−GEVB system contains parts and assemblies sensitive to
Electrostatic Discharge (ESD). Electrostatic control precautions are required when
installing, testing, servicing or repairing this assembly. Component damage may result if
ESD control procedures are not followed. If you are not familiar with electrostatic control
procedures, refer to applicable ESD protection handbooks and guidelines.
7
8
Installation and Use
A drive, incorrectly applied or installed, can result in component damage or reduction in
product lifetime. Wiring or application errors such as under sizing the motor, supplying an
incorrect or inadequate AC supply or excessive ambient temperatures may result in system
malfunction.
Powering Down the System
Remove and lock out power from the drive before you disconnect or reconnect wires or
perform service. Wait ten minutes after removing power to discharge the DC bus
capacitors. Do not attempt to service the drive until the bus capacitors have discharged to
zero. Failure to do so may result in personal injury or death.
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16
SECO−MDK−4KW−65SPM31−GEVB
Test Procedure
Setup and Start−up Procedure
This section presents the test procedure and results for the
evaluation of the platform. The aim of these tests is to show
the system level performance of the IPM as well as the
performance of some of the key subsystems. The described
and presented test and results include:
• Load tests
Figure 20 shows an overview of the test setup. The
test−bench consists of five main parts:
1. DC−power supply
2. MDK_SPM31 power−board
3. R−L load/or MOTOR
4. PC/Laptop with a USB−C cable connection to
a serial com port for the graphical user interface
5. Oscilloscope to monitor the inverter output currents
and voltage.
♦ 1 kW
♦ 4 kW
• Auxiliary power supply
♦ Load transient
Ensure to follow and implement the Safety precautions
descried in Safety Precautions while testing and
manipulating the board.
Figure 20. Overview of Schematic Set−up
The procedure to start−up and power down the
development board is described below. Please read the
mandatory Safety precautions detailed in Safety Precautions
before manipulating the board.
pole−pairs of the motor; and finally you can select
the gains of the PI controllers (used only in FOC). If
one or more of above the parameters is not
configured, the software will use the default value.
Default values are: control strategy is V/F,
maximum voltage 200 Vrms, maximum speed 9000
RPM, 4 pole−pairs, gains of current regulator 30 and
2500, gains of speed regulator 0.08 and 0.05.
8. After having configured the control and motor
parameters, push the “RUN” button (the motor will
not start yet)
1. Connect the DC−power supply cables to the
MDK_SPM31 board. Connect the positive voltage to
the red connector of MDK_SPM31, while the
negative to the black. Connect the green connector
to the earth.
2. Set a maximum voltage and current limit at the
power supply. Use 410 V and 13 A
3. Connect your laptop to the UCB via the USB−C
cable
9. Switch on the power supply at 400 V, and observe the
voltage at the GUI
4. Run the executable file of the GUI that is found in
[12]
10. Set a target speed and a target acceleration and press
the “SEND REF VALUE” button
5. On the pop−window press the “Connect” to connect
to the UCB board
6. If the connection is successful, an indication
“Connected” will appear at the bottom right of GUI.
If connection fail several times, reconnect the
USB−C cable and try again
11. The motor should start running
12. To stop the motor press the “STOP MOTOR” button
13. When the test stops and the DC source is
disconnected from the MDK_SPM31 board, there
might be still voltage on the DC link capacitor, so
please be careful.
7. After being connected, you can change the following
configuration in the GUI: You can select one of the
two available control strategies (i.e. FOC or V/F);
the maximum motor phase voltage and speed; the
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17
SECO−MDK−4KW−65SPM31−GEVB
Test Results
which emulates a tree phase motor. Figure 21 illustrates the
electrical equivalent of the R−L load along with the
electrical quantities under measured. The experimental
results and captured waveform are depicted in Figures
22−27, showing the captured current and voltage
waveforms, along with the reading from the DC−power
supply. Thermal analysis results from FLIR A645SC
camera conclude the section.
Table 3 summarizes the electrical parameters that have
been used for the test, as well as the values of the electrical
quantities that we have measured. The recorded efficiency
was 95% and 96% respectively.
This section presents the results of the experimental test
performed on the board. For the experimental test we have
used an R−L load which is rated up to 4 kW, instead of
a motor. The IPM switching frequency is set to 16 kHz,
while the dead−time of the IPM is set 1500 ns. Finally, the
DC−Link is set to 400 V, via a DC−power supply. The
equivalent R−L emulates the motor and consists of three
inductors (5 mH per phase) connected in series with
a resistive bank that comprises variable resistors from
7.55 ꢀ up to 30 ꢀ per each phase. The above configuration
forms an equivalent three−phase R−L load in Y connection,
Table 3. SYSTEM PARAMETERS − RECAP TABLE
Switching
Frequency
Resistance
per phase
(W)
Inductance
per phase
(mH)
RMS
Current
(A)
Phase Volt
Target
Phase Volt
Meas.
DC Supply
(W)
Vdc
(V)
Temp
(5C)
(V
)
(V
)
Test
(kHz)
PF
n %
RMS
RMS
1 kW
400
400
16
16
10.5
10.5
5
5
0.99
5.694
11.1
67.17
127.3
60.46
1091
65.8
95%
(25 min)
4 kW
0.99
120.35
4168
83.1
(8 min)
96.2%
Figure 21. Electrical Schematic of R−L Load/Representation of the Measurement Points
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18
SECO−MDK−4KW−65SPM31−GEVB
1 kW Test
Figure 22. Phase Current U, Phase Current V, Inverter Output L−L voltage (UV) @ 1 kW
Figure 23. DC Power Supply Reading @ 1 kW.
Figure 24. Thermal Camera Capture@ 1 kW after 25 Minutes of Operation
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19
SECO−MDK−4KW−65SPM31−GEVB
4 kW Test
Figure 25. Phase Current U, Phase Current V, Inverter Output L−L Voltage (UV) @ 4 kW
Figure 26. DC Power Supply Reading @ 4 kW
Figure 27. Thermal Camera Capture@ 4 kW after 8 Minutes of Operation
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20
SECO−MDK−4KW−65SPM31−GEVB
Auxiliary Power Supply
FIgure 28 shows the response dynamics of the output
voltage at a constant input of 390 Vdc and for different loads.
The output of the power supply is set at 15 Vdc and its max
deliverable power is 4.6 W.
Measure 1: 50 mA, Measure 2: Open Circuit, Measure 3: 300 mA
Figure 28. Start Up to Open Circuit, to 50 mA and to 300 mA at 390 V DC Input
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21
SECO−MDK−4KW−65SPM31−GEVB
DEVELOPMENT RESOURCES AND TOOLS
Collateral, development files and other development
resources listed below are available at
SECO−MDK−4KW−MCTRL−GEVB. Table 4 presents bill
of materials (BOM) of the board. Figures 29−32 illustrate
the corresponding Altium output layers of the board.
are showing all the layers. Board size is 160 x 130 mm.
Layout recommendations in AND9390/D have been
applied as well. Specifics about the current measurement
layout are detailed in Current Measurement and
Over−Current Protection
• Schematics
• Executable GUI
• Boot−image for booting from flash or SD card (on
delivery UCB is already flashed)
• BOM (below as well)
• Manufacturing files
• PCB layout recommendations and files (below as well)
Evaluation board consist of 4.0 layers. Following figures
Bill of Materials
Table 4. BILL OF MATERIALS
Designator
Quantity
Value/Description
15 Vdc
Manufacturer
Supplier Part Number
36−5008−ND
3.3 V, 5 V, 15 V
3
5
Keystone Electronics
Keystone Electronics
AUX_SW, DC_LINK,
FAULT, TEMP,
VCC_IPM
PTH testpoint eyelet
36−5007−ND
C1
C2
1
1
1
1
1
1
2
1
1
5
100 nF
10 ꢁ F
Würth Electronik
Würth Electronik
Würth Electronik
Würth Electronik
Rubycon
732−7989−2−ND
732−8503−1−ND
732−7676−1−ND
732−5748−ND
C3
330 nF
100 nF
10 ꢁ F
C4
C5
1831326
C6
47 nF
Würth Electronik
Würth Electronik
Murata
732−8011−1−ND
732−9171−1−ND
81−GRM188R71H154KA4D
490−11994−1−ND
732−8007−1−ND
C7, C8
C9
220 ꢁ F
150 nF
470 nF
10 nF
C10
Murata
C11, C16, C52, C56,
C60
Würth Electronik
C12, C15, C75
C13, C14
C17, C18
C19
3
2
1 F
22 ꢁ F
AVX
1658870
732−7709−1−ND
2495139
Würth Electronik
Würth Electronik
Murata
2
n.a., 470 pF
1 nF
1
490−11503−1−ND
732−7411−1−ND
732−6678−ND
732−8061−1−ND
875075661010
1843167
C20, C21
C22, C23
C25
2
100 nF
470 ꢁ F
100 nF
330 ꢁ F
22 ꢁ F
Würth Electronik
Würth Electronik
Würth Electronik
Würth Electronik
TDK
2
1
C26
1
C27, C31, C34
3
C28, C30, C32, C33,
C35, C36, C43, C46,
C47, C48, C66, C67
12
100 nF
Würth Electronik
732−7495−1−ND
C29, C45, C49, C50,
C51, C68
6
1 nF
Würth Electronik
Würth Electronik
732−8001−1−ND
732−7799−1−ND
C37, C38, C39, C40,
C41, C42, C55, C59,
C63, C65
10
100 pF
C44
1
15 nF
Würth Electronik
2534047
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22
SECO−MDK−4KW−65SPM31−GEVB
Table 4. BILL OF MATERIALS (continued)
Designator
Quantity
Value/Description
100 nF
Manufacturer
Wurth Electronics
Würth Electronik
Supplier Part Number
732−7965−1−ND
C53, C57, C61
3
7
C54, C58, C62, C76,
C77, C78, C79
1 nF
732−7786−1−ND
C64
1
1
47 ꢁ F
Murata
490−13247−1−ND
CON1
Banana Connector
(positive output)
CLIFF Electronic
Components
1854508
CON2
CON3
1
1
Banana Connector
(negative output)
CLIFF Electronic
Components
1854507
Pluggable Terminal
Blocks (inverter output)
Würth Elektronik
691313710003
CON5
CON6
CON7
1
1
1
UCB Controller
MALE BOX HEADER
Würth Elektronik
Würth Elektronik
62502021621
PTH vertical male
header
732−5318−ND
CON8
1
Banana Connector
(earth output)
CLIFF Electronic
Components
419668
D1
D2
1
1
2
1
4
5
MRA4007T3G
MMSD4148T1G
MURA160T3G
MBRS2040
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
1459137
MMSD4148T1GOSCT−ND
1459149
D3, D4
D5
MBRS2040
D6, D8, D9, D10
SMF15AT1G
Diode BAS70
2630276
D7, D11, D15, D16,
D17
D18, D19, D20
3
7
BAT54SLT1G
ON Semiconductor
BAT54SLT1GOSCT−ND
36−5009−ND
DISABLE, INH_U,
INH_V, INH_W, INL_U,
INL_V, INL_W
PTH testpoint eyelet
Keystone Electronics
G_IPM
1
1
PTH testpoint eyelet
Keystone Electronics
Fischer Elektronik
Würth Elektronik
Würth Elektronik
Würth Elektronik
Panasonic
36−5124−ND
SK645/50/SA
2211747
HSC1
Heatsink SK64550SA
1 mH
L1
1
L2
1
560 H
7447452561
710−7447714220
P56.0KHCT−ND
P15.0KHCT−ND
P22.0KHCT−ND
2059357
L3
R1, R7, R63, R65
R2, R3, R4
R5
1
22 ꢁ H
4
56 kꢀ
3
15 kꢀ
Panasonic
1
22 kꢀ
Panasonic
R6, R68
R8
2
3 kꢀ
Panasonic
1
56.2 kꢀ
1 kꢀ
Panasonic
2326904
R9
1
Panasonic
2303145
R10, R11, R12, R29,
R31, R32, R33, R34,
R35, R39, R40, R41
12
330 kꢀ
Vishay
1470007
R13
1
6.8 kꢀ
100 ꢀ
Panasonic
Panasonic
667−ERJ−P08F6801V
R14, R15, R16, R17,
R18, R19, R20, R22,
R23, R27, R60, R64,
R66
13
2303059
R21
1
10 kꢀ
Panasonic
P10.0KHCT−ND
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23
SECO−MDK−4KW−65SPM31−GEVB
Table 4. BILL OF MATERIALS (continued)
Designator
Quantity
Value/Description
Manufacturer
Supplier Part Number
R36, R37, R38
3
0.01 ꢀ
KOA SPEER
ELECTRONICS
660−TLRH3APTTE10L0F
R42, R43, R44
3
6
13.7 kꢀ
10 kꢀ
Panasonic
YAGEO
P13.7KCCT−ND
R45, R49, R50, R54,
R55, R61
9238603
R46, R48, R51, R53,
R56, R59
6
1 kꢀ
Panasonic
2379938
R47, R52, R57
3
1
1
1
1
6
1 kꢀ
680 ꢀ
1 kꢀ
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
2303145
2303131
R58
R62
R67
R69
2303145
330 ꢀ
3.9 kꢀ
0 ꢀ
2303104
2397722
R70, R80, R81, R82,
R83, R84
P0.0GCT−ND
R78, R79
R91
2
1
1
1
6
4.7 kꢀ
2.7 kꢀ
4.7 kꢀ
0 ꢀ
Panasonic
Panasonic
Panasonic
Vishay
P4.70KHCT−ND
2303171
R92
P4.70KHCT−ND
71−RCS12060000Z0EA
732−10660−ND
R99
SB1, SB2, SB3, SB4,
SB5, SB6
Spacer M3 F/F 50
HEX7
SHC1, SHC2, SHC3,
SHC4, SHC5, SHC6
6
6
M3x16 DIN7985
ST1, ST2, ST3, ST4,
ST5, ST6
Spacer M3 M/F 6/30
HEX7
732−10465−ND
U1
U2
1
1
1
1
1
3
1
1
1
4
NCP1063AD060R2G
NCP718BSN330T1G
FAN8303MX
FDC6326L
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
Keystone Electronics
NCP1063AD060R2GOSCT−ND
NCP718BSN330T1GOSCT−ND
FAN8303MXCT−ND
U3
U4
512−FDC6326L
U5
IPM
NFAM5065L4B−ND
U6, U7, U8
U9
NCS20166
NCS20166SN2T1G
TLV431
863−TLV431CSN1T1G
U10
U14
NCS2250SN2T3G
CAT24C512
CAT24C512WI−GT3OSCT−ND
36−5005−ND
U_OUT, V_OUT,
VB_U, W_OUT
PTH testpoint eyelet
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24
SECO−MDK−4KW−65SPM31−GEVB
Layouts
Figure 29. Top Layer Routing and Top Assembly
Figure 30. Internal Layer 1
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25
SECO−MDK−4KW−65SPM31−GEVB
Figure 31. Internal Layer 2
Figure 32. Bottom Layer Routing and Bottom Assembly
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26
SECO−MDK−4KW−65SPM31−GEVB
APPENDIX
Table 5 recaps all the signals and low−voltage rails that
the UCB controller and NFAM5065L4B inverter stage.
However, as CON4 and CON5 host 240 pins, we will only
partially address those.
are routed throughout abovementioned connectors. It is
noted that CON4 and CON5 host the majority of those
signals, which are mainly used for the interaction between
Table 5. MDK_SPM31 INTERFACE
MDK
INTERFACE
CONNECTOR Pin
MDK
IPM
NET LABEL
Connection Description
CON4
70
U11
UART_TX
Transmitting Data to
UCB from U11
(USB to BASICUART IC)
71
U11
UART_RX
Receiving Data to U11 from UCB
(USB to BASICUART IC)
106
109
112
ADC_1_P
ADC_3_P
ADC_5_P
I_U current sense
I_W current sense
IPM Input DC−Link
V_DCLINK
115
118
CON6 p5
CON6 p4
ADC_7_P
ADC_9_P
Pin 5 of CON6 via R82
IPM Output Voltage
ZC_V
46
ADC_2_P
ADC_4_P
ADC_6_P
ADC_8_P
ADC_10_P
5V
I_V current sense
TEMPERATURE from IPM p20
Pin 4 of CON6 via R81
49
IPM p20
52
55
58
IPM Output Voltage ZC_U
IPM Output Voltage ZC_W
1, 2, 3, 43, 44
CON7 p1
CON7 p2
From the Auxiliary
power Supply or UCB
9, 12, 17, 22, 27, 32,
37, 42, 45, 47, 48, 50,
51, 53, 54, 56, 57, 59,
60, 61, 62, 63, 66, 69,
72, 77, 82, 87, 92, 97,
102, 103, 104, 105,
107, 108, 110, 111,
113, 114, 116, 117,
119, 120
IPM p27
via R99
S_GND
UCB Ground
Connects to IPm p27
(G_IPM) via R99
11
To 5V via R70
UART_OB_
DISABLE
If R70 is soldered the UART
of UCB is disabled
2
13
14
15
16
18
19
20
21
U14 p6
U14 p5
DIO_1_1
DIO_1_2
DIO_1_3
DIO_1_4
DIO_1_5
DIO_1_6
DIO_1_7
DIO_1_8
I C SCL to U14 (EEPROM)
2
I C SDA to U14 (EEPROM)
IPM p26
IPM p24
IPM Disable Pin p26 via D11 & R20
IPM Fault Pin p24
CON6 p2
CON6 p3
CON6 p7
SPI via CON 6 (SCLK)
SPI via CON 6 (MOSI)
SPI via CON 6 (MISO)
ITRIP from
U10
ITRIP signal from U10
(NCS2250SN2T3G comparator)
CON5
70
POWER_OK
from U4
POWER_OK
From p4 U4
(Power Switch ICs FDC6326L)
73
74
75
CON6 p10
CON6 p11
CON6 p12
DIO_2_1
DIO_2_2
DIO_2_3
For CAN (Rx)
For CAN (Tx)
Debug pin avail. at p12 CON6
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27
SECO−MDK−4KW−65SPM31−GEVB
Table 5. MDK_SPM31 INTERFACE (continued)
MDK
INTERFACE
CONNECTOR Pin
MDK
IPM
NET LABEL
DIO_2_4
Connection Description
Debug pin avail. at p9 CON6
Debug pin avail. at p5 CON7
Debug pin avail. at p4 CON7
Debug pin avail. at p3 CON7
Debug pin avail. at p13 CON6
76
78
CON6 p9
CON7 p5
CON7 p4
CON7 p3
CON6 p13
DIO_2_5 (Note 2)
DIO_2_6 (Note 2)
DIO_2_7 (Note 2)
DIO_2_8
79
80
81
103, 104
IPM p6,
IPM p21
PWM_0_H,
PWM_0_L
PWM0 H/L output to IPM via R14
and R17, respectively
106, 107
109, 110
43, 44
IPMp18,
IPM p23
PWM_2_H,
PWM_2_L
PWM2 H/L output to IPM via R16
and R19, respectively
CON6 p17,
CON6 p16
PWM_4_H,
PWM_4_L
PWM4 output
IPMp12,
IPM p22
PWM_1_H,
PWM_1_L
PWM1 H/L output to IPM via R15
and R18, respectively
46, 47
CON6 p15,
CON6 p14
PWM_3_H,
PWM_3_L
PWM3 output
49, 50
CON6 p18,
CON6 p19
PWM_5_H,
PWM_5_L
PWM5 output
9, 12, 17, 22, 27, 32,
37, 42, 45, 48, 51, 54,
6, 57, 60, 61, 62, 63,
69, 72, 77, 82, 87, 92,
97, 102, 105, 108, 111,
114, 117, 120
CON7 p2
IPM p27
via R99
S_GND
UCB Ground
Connect to IPM p27
(G_IPM) via R99
1, 2, 3
CON7 p1
U4 p4
5V
From the Auxiliary
power Supply or UCB
CON6
1
15VDC_SW
DIO_1_5
DIO_1_6
DIO_1_7
Connected to U4 (Power Switch ICs)
SPI via CON 6 (SCLK)
2
3
7
SPI via CON 6 (MOSI)
SPI via CON 6 (MISO)
4, 5, 6, 8
ADC_6_P via R81
ADC_7_P via R82
ADC_8_P via R83
ADC_9_P via R84
Connect to ADC port of UCB via
CON4
9, 10, 11, 12, 13
DIO_2_4
DIO_2_1
DIO_2_2
DIO_2_3
DIO_2_8
Debug Pins Connect to UCB via
CON5
14, 15, 16, 17, 18, 19
PWM_3_L
PWM_3_H
PWM_4_L
PWM_4_H
PWM_5_H
PWM_5_L
Connect to PWM port of UCB via
CON5
20
1
IPM p27
via R99
S_GND
S_GND
(UCB Ground)
CON7
CON7 p1
5V
From the Auxiliary
power Supply or UCB
2
IPM p27
via R99
S_GND
S_GND
(UCB Ground)
3
4
5
DIO_2_7 (Note 2)
DIO_2_6 (Note 2)
DIO_2_5 (Note 2)
Pin to UCB via CON5
Pin to UCB via CON5
Pin to UCB via CON5
2. Can be used as input from encoder.
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28
SECO−MDK−4KW−65SPM31−GEVB
REFERENCES
[1] UCB documentation.
[2] NFAM5065L4B data sheet. Intelligent Power Module
(IPM) 6500 V, 50 A.
[3] NCP1063 data sheet.
[4] FAN8303 data sheet.
[12] GUI executable and boot−image download link.
[13] J.A. Santisteban, R.M. Stephan, “Vector control
methods for induction machines: an overview,” IEEE
Transactions on Education, Vol 44, no 2, pp−170−175,
May 2001.
[5] NCP718 data sheet.
[6] NCS20166 data sheet.
[7] NCS2250 data sheet.
[14] M. Ahmad, “High Performance AC Drives:
Modelling Analysis and Control,” published by
Springer−Verlag, 2010.
[8] CAT24C512 data sheet.
[9] NCD98011 data sheet.
[10] AND9390/D. 3−phase Inverter Power Module for the
Compact IPM Series.
[15] J.R Hendershot, T.J.E. Miller, “Design of Brushless
Permanent−Magnet Machines,” published in the USA
by Motor Design Books LLC, 2010.
[16] Boot from flash.
[11] FPGA Zynq 7000 series data sheet.
Arm, Cortex, and the Arm logo are registered trademarks of Arm Limited (or its subsidiaries) in the EU and/or elsewhere.
All other brand names and product names appearing in this document are registered trademarks or trademarks of their respective holders.
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