Renesas RL78/G1F User manual

User’s Manual
R12UT0012EJ0100 Rev.1.00 Page 1 of 32
20.10.2020
RL78/G1F Motor Driver Board GB01
User's Manual
For Your Safety
Be sure to read this manual before using the RL78/G1F Motor Driver Board GB01 (P13130-D1-003) (this
product).
•Follow the indications in this manual when using the product.
•Keep this manual near the product so you can refer to it whenever necessary.
•Transfer or sale of the product to third parties is prohibited without written approval.
•The purchaser or importer of the product is responsible for ensuring compliance with local regulations. In
addition, the customer is responsible for ensuring that the product is handled correctly and safely, in
accordance with the laws of the customer’s country (region).
•The manual for the product, and specification (the documents) are the tool that was developed for the
function and performance evaluation of Renesas Electronics semiconductor device (Renesas Electronics
device) mounted on the product, and not guarantee the same quality, function and performance.
•By purchasing the product or downloading the documents from Renesas Electronics website, the support
services provided from Renesas Electronics is not guaranteed.
•All information contained in this manual represents information on products at the time of publication of
this manual. Please note that the product data, specification, sales offices, contents of website, address,
etc., are subject to change by Renesas Electronics Corporation without notice due to product
improvements or other reasons. Please confirm the latest information on Renesas Electronics website.
In this manual items related to the safe use of the product are indicated as described below.
The degree of injury to persons or damage to property that could result if the designated content in this
manual is not followed is indicated as follows.
Danger
Indicates content that, if not followed, could result in death or serious
injury*1to the user, and which is highly urgent.
Warning
Indicates content that, if not followed, could result in death or serious
injury to the user.
Caution
Indicates content that, if not followed, could result in injury*2to persons or
physical damage.*3
Note 1. Serious injury refers to conditions resulting in persistent after-effects and for which treatment would
necessitate hospitalization or regular hospital visits, such as loss or impairment of eyesight, burns
(high- or low-temperature), electric shock, bone fracture, or poisoning.
Note 2. Injury refers to conditions for which treatment would necessitate hospitalization or regular hospital
visits.
Note 3. Physical damage refers to damage affecting the wider surroundings, such as the user’s home or
property.
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Requirements related to the handling of the product are classified into the following categories.
•Marks indicating that an action is prohibited.
General Prohibition
The indicated action is prohibited.
Example: Do Not Touch!
Touching the specified location could
result in injury.
Marks indicating that an action is prohibited.
General Caution
Indicates a general need for caution
that is not specified.
Example: Caution – Hot!
Indicates the possibility of injury due to
high temperature.
Marks directing that the specified action is required.
General Instruction
The specified action is required.
Example: Turn Off (Disconnect) Power
Supply!
Instructs the user to turn off (disconnect)
the power supply to the product.
Danger
•The product should be used only by persons (users) having a thorough knowledge of
electrical and mechanical components and systems, a full knowledge of the risks
associated with handling them, and training in inverter motor control and handling motors,
or equivalent skills. Users should be limited to persons who have carefully read the
Caution Items contained in this manual.
•
Unlike typical equipment, the product has no protective case to ensure safety, and it
contains moving parts and high-temperature components that could be dangerous. Do
not touch the evaluation board or cables while power is being supplied.
•
Carefully check to make sure that there are no pieces of conductive materials or dust
adhering to the board, connectors, and cables.
•
There are moving parts, driven by a motor. Do not touch the motor while power is being
supplied.
•Ensure that the motor is insulated and placed in a stable location before supplying power.
Do Not Connect Load to Motor!
•
This could cause fire, burns, or injury.
Warnings Regarding Use of the Product
Danger Items

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Warning
Caution – Rotating Parts!
•
The system includes a motor. Touching the rotating shaft could cause high-temperature
burns or injury.
Always insert plugs, connectors, and cables securely, and confirm that they are fully inserted.
•
Incomplete connections could cause fire, burns, electric shock, or injury.
Use the power supply apparatus specified in the manual.
•
Failure to do so could cause fire, burns, electric shock, injury, or malfunction.
Disconnect the power supply and unplug all cables when the system will not be used for a
period of time or when moving the system.
•
Failure to do so could cause fire, burns, electric shock, or malfunction.
•This will protect the system against damage due to lightning.
Use a mechanism (switch, outlet, etc.) located within reach to turn off (disconnect) the power
supply.
•In case of emergency, it may be necessary to cut off the power supply quickly.
Turn off the power supply immediately if you notice abnormal odor, smoke, abnormal sound,
or overheating.
•
Continuing to use the system in an abnormal condition could cause fire, burns, or electric
shock.
Do Not Disassemble, Modify, or Repair!
•
Failure to do so could cause fire, burns, electric shock, injury, or malfunction.
Do not use the product for any purpose other than initial evaluation of motor control in a
testing room or lab.
Do not integrate the product or any part of it into other equipment.
Do not insert or remove cables or connectors when the product is powered on.
•
The product has no safety case.
•
Failure to observe the above could cause fire, electric shock, burns, or malfunction.
•The product may not perform as expected if used for other than its intended purpose.
Caution
Caution – Hot!
•
The motor gets hot. Touching it could cause high-temperature burns.
Follow the procedure specified in the manual when powering the system on or off.
•
Failure to do so could cause overheating or malfunction.

Warning Items

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Summary
The RL78/G1F Motor Driver Board GB01 (P13130-D1-003) is a motor control evaluation board.
Be sure to connect a communication board when using the Renesas Motor Workbench (RMW).
The customer needs to prepare an E1 emulator and the power supply for using this product.
This user’s manual describes the proper handling of the product.
Target Device
RL78/G1F microcontroller

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Contents
For Your Safety...........................................................................................................................1
Summary .....................................................................................................................................4
Target Device ..............................................................................................................................4
1. Overview ..............................................................................................................................6
2. Hardware Overview ............................................................................................................7
3. Hardware Configuration.....................................................................................................8
4. Layout...................................................................................................................................9
5. User Interface Specifications ..........................................................................................10
6. Alternate Function Pins ...................................................................................................11
7. Sample Connection For Use............................................................................................12
8. Circuit Function ................................................................................................................13
9. List of RL78/G1F Pin Functions ......................................................................................22
10. Schematics ........................................................................................................................24
11. BOM....................................................................................................................................27
12. Caution Items ....................................................................................................................32
Corporate Headquarters ............................................................................................................1
Contact information ...................................................................................................................1
Trademarks .................................................................................................................................1

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1. Overview
This user’s manual describes the RL78/G1F Motor Driver Board BG01, a control evaluation board that
drives a permanent magnet synchronous motor using the RL78/G1F microcontroller. The features of the
evaluation board are shown below.
(1) Supports the motor control microcontroller RL78/G1F.
(2) Supports permanent magnet synchronous motors.
(3) Can detect 3-shunt current and 1-shunt current.
(4) Supports the input voltage of 12V to 50V.
(5) Output peak current: 30A
(6) Supports various sensor inputs (such as encoder and hall sensors), serial communications, and I2C
communications.

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2. Hardware Overview
Table 2.1 Specifications of 78/G1F Motor Driver Board GB01 (P13130-D1-003)
Item
Specification
Operating input voltage
12V to 50V
Maximum output current
30A (peak current for each phase)
Driving monitor
3-phase permanent magnet synchronous motor
Current detection method
Detects current using a shunt resistor for 3-phase and DC link.
DC bus voltage detection
Detects using a resistance divider circuit.
3-phase output voltage detection
Detects using a resistance divider circuit.
PWM logic
Positive for both upper and lower arms.
Overcurrent detection
Available by specifying the RL78/G1F MCU setting (PWMOPA) (No
detection circuit is provided.)
Dead time
1 µs or more
Switch
Three tact switches (including one switch for CPU reset)
LEDs
2
Connectors
•Emulator connector (with conversion cable): CN3
•
I2C communication connector: CN6
•
Two serial communication connectors: CN4 and CN8
•
ABZ encoder signal input connector: CN2
•
Hall sensor signal input connector: CN5
•Two analog signal input connectors: CN1 and CN7
Exterior view
Heat dissipation
Natural air cooling by a heat sink
MCU
Product No.
R5F11BGEAFB
CPU max. operating
frequency
32MHz
Bit count
16 bits
Package/Pin count
LFQFP/48 pins
ROM
64 KB
RAM
5.5 KB
Operating temperature
Room temperature
Operating humidity
No condensation

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3. Hardware Configuration
RL78/G1F
A/D converter input
Bus voltage
TRD output
VDC (P)
GND (N)
Power supply circuit(5V/12V)
U
port
W
port
V
port
HU port
HW port
HV port
GND port
Vcc port
SW1 SW2
PGA/CMP0 input
I/O
LED1 LED2
U
p
V
p
W
p
V
n
U
n
W
n
Inverter circuit
V
u
V
v
V
w
P27/ANI7
P22/PGAI/IVCMP0
P23/PGAGND
P123
P124
P15/TRDIOB0 (Up)
P13/TRDIOA1 (Vp)
P12/TRDIOB1 (Wp)
P14/TRDIOD0 (Un)
P10/TRDIOD1 (Wn)
P63
Interrupt input
P30/INTP3（HU)
P75/INTP9(HV)
P31/INTP4(HW)
DC24V input
Comparator(CMP1)
W V U
Power supply 5V
Power supply
12 V( P re-drive r drive)
/24V
P25/ANI5
P24/ANI4
P26/ANI6
Iu
Iv
Iw
Phase current
P147/ANI18
P120/ANI19
ANA_I N0
ANA_I N1
DC l ink c urrent
Analo g input
P74
P60
P61
SW2
SW1
LED1
LED2
P62
Filter_SW0
Filter_SW1
Filter_SW2
3-phase voltage
detection
Filter se le cto r switch
P50/INTP1
Hall sensor si gnal
(CN5)
Rotary en coder
Z p hase si gnal
(CN2)
P11/TRDIOC1 (Vn)
Communication
input / output
P71/SDA21
P70/SCL21
P17/TXD0
P16/RXD0
P72/TXD1
P73/RXD1
I2C communic ation(CN6)
Rotary en coder
signa l input
(CN2)
Serial communi cation(CN8)
Rene sas M oto r Wo rkbe nch
TRG input
P00/TRGCLKA( Shared )
P01/TRGCLKB( Shared )
Switch sign al
input
LED
output
CN5
ENC_Z port
ENC _A por t
ENC _B por t
GND port
Vcc port
CN2
Serial communi cation(CN4)
RXD0 port
TXD0 port
GND port
Vcc port
CN8
Analog IN 0
port
Vcc port
CN7
SDA21 port
SCL21 port
GND port
Vcc port
CN6
RXD1 port
TXD1 port
GND port
Vcc port
CN4
GND port
TO OL0 port
R ES ET port
Vcc port
CN3
Analog IN1
port
Vcc port
CN1
Analog input 0
I2C
communication
Se ri a l
communication
Analog input 1
Emulator conection
Se ri a l
communication
Hall sensor si gnal input
Operational
amplifier IC
Phase current
DC l ink
current
Switch sign al
input
LED
output
V
n
P20/IVCMP12
P01/IVCMP11( Shared )
P21/IVCMP13
Vu
Vv
Vw
Phase
voltage
P00/IVCMP10( Shared )Vn Midp oin t vol tage
CMP1 input
Filter selector switch
Rotary encoder
signal input
Figure 3-1 Hardware Configuration

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4. Layout
Power connection
terminal Motor 3-phase
connection terminal
CN7
CN8
CN6CN5CN4
CN3
CN2CN1
RESET SW
SW1
SW2
LED1
LED2
RL78/G1F MCU
Front
operational
amplifier
READ2302GSP
MOSFET RJK0703DPP-A0
Half bridge
driver
HIP2101IBZ
back
Figure 4-1 Layout

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5. User Interface Specifications
Table 5.1 lists the user interface parts on this system.
Table 5.1 User Interface
Item
Interface Parts
Function
SW1
Tact switch
Can be defined by user
SW2
Tact switch
Can be defined by user
RESET
Tact switch (RESET1)
System reset
LED1
Yellow-green LEDs
Can be defined by user
LED2
Yellow-green LEDs
Can be defined by user
Table 5.2 lists the connector interface pins on this system.
Table 5.2 Connector Interface
Item
Pin Count
Function
CN1
2
Analog input
CN2
5
ABZ encoder signal input
CN3
5
Emulator connection (with conversion board)
CN4
4
Serial communications (SCI1)
CN5
5
Hall sensor signal input
CN6
4
I2C communications
CN7
2
Analog input
CN8
4
Serial communications (SCI0) with Renesas Motor
Workbench

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6. Alternate Function Pins
The RL78/G1F demo board switches the pin function using the 0-Ω resistors on the board circuit.
Table 6.1 Pin Function Switching
Port No.
Short-Circuited
Resistor
Selected Pin Function Function
P00
R9
ANI17/IVCMP10
Middle-point voltage detection
R12
TRGCLKA
Encoder A phase
P01
R14
ANI16/IVCMP11
U-phase voltage detection
R13
TRGCLKB
Encoder B phase
R9 R12 R13 R14
Figure 6-1 Short-Circuited Resistors on Board for Switching Pin Function

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7. Sample Connection For Use
You need to prepare the cables for connecting the motor, power supply, and board. If you use the motor
control development support tool “Renesas Motor Workbench”, you may use the communication board
(RTK0EMX6B0Z00000BJ) or a third-party board (microcontroller waveform display tool “ICS++ (In Circuit
Scope plus)”, manufactured by Desk Top Laboratories Inc.).
Power
supply
BLDC
Motor
Communication board
CN８
Nch
terminal
Pch
terminal
Figure 7-1 Sample Board Connection

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8. Circuit Function
8.1 Inverter Control Circuit
The inverter control circuit control the motor using six Power MOS-FETs. The Power MOS-FETs use the 6-
phase timer outputs from the microcontroller via the predriver IC.
The inverter control circuit inputs the DC line voltage, U-phase voltage, V-phase voltage, W-phase voltage,
and shunt current to the A/D pins of the microcontroller. The analog values of each voltage and shunt current
can thus be measured. See sections 8.2 and 8.3 for details about how to detect the current and voltage,
respectively. The inverter control circuit also has a function to detect the overcurrent from the U-phase, V-
phase, and W-phase shunt current.
Figure 8-1 shows a schematic diagram of the inverter control circuit. Note that the inputs to the A/D pins
may actually pass through a voltage diver or an offset device. See the circuit diagram for details.
Motor
UP
UN
VP
VN
WP
WN
VBUS
IU_OPA
IV_OPA
IW_OPA
VU
VV
VW
OP-Amp
OP-Amp
OP-Amp
PGAG PGAI
VN
PWM input
DC Bus voltage
Phase
voltage
Shunt current
(Via amplifier)
POWER
MOS- FET
Shunt current
(MCU built-in amplifier connection)
Midpoint
voltage
Figure 8-1 Schematic Diagram of Inverter Control Circuit

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8.2 Current Detection Circuit
The current detection circuit is integrated to measure the U-phase, V-phase, and W-phase current. The
current detection circuit is configured by mounting a shunt resistor for the U-phase, V-phase, and W-phase.
The voltage drop generated when the current passes through the shunt resistor is amplified by the
operational amplifier and then input to the microcontroller. The equation (1) below shows the relationship
between the current Iin running through the shunt resistor and the voltage Vout input to the microcontroller.
Vout[V] = Iin[A] × Rs[Ω] × 5 + 2.5 (1)
-
+
Iin
Vout
I
U
_OPA
2.0k Ω
2.0k Ω
20k Ω
20k Ω
10k Ω
Rs
5V
Rs : Shunt resistance
Iin : Current flowing through the shunt resistor
Vout : Voltage applied to CPU card connection terminal
I
V
_OPA
I
W
_OPA
Figure 8-2 Schematic Diagram of Current Detection Circuit
Also, a DC link shunt resistor is mounted for 1-shunt current detection, which enables detection of the
overcurrent by using the RL78/G1F internal PGA and current detection comparator.
Inverter
circuit
DC P OWER
INPUT
-
+
A/D Converter
CMP0
PGA
PGA IN
PGAGND
Figure 8-3 Connection of PGA and Inverter Control Circuit
-
+
D/A
Converter
Idc
Figure 8-4 Overcurrent Detection Using Internal PGA and CMP0

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8.3 Output Voltage Detection Circuit
The inverter board integrates a circuit used to input the bus line voltage and 3-phase output voltage (U-
phase, V-phase, and W-phase) to the A/D pins of the microcontroller via a resistance voltage divider. The
equation (2) below shows the relationship between the 3-phase output voltage, bus line voltage, and
detection voltage.
Vout[]=470
10 ×103+470 ×[] (2)
10k Ω
470 Ω0.1µF(VBUS)
NC(VUvw)
VU
Vin Vout
VV
VW
VBUS
Figure 8-5 Schematic Diagram of Output Voltage Detection Circuit
8.4 Voltage Generation Circuit
This board generates the voltage of 12V and 5V from the main power supply (24V).
Table 8.1 Voltage Generation Circuit
Item
Input Voltage
(Typ.) [V]
Output Voltage
(Typ.) [V]
Output Current
(Max.) [A]
Used for:
12V generation
24
12
0.06
•5V generation
•Gate driver IC
5V generation
12
5
0.1
Power supply for MCU

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8.5 3-Phase Voltage Detection Filter Switching Circuit
This board integrates a circuit used to switch the filter constant for 3-phase voltage detection. When the
signal level of the corresponding pin is changed, C of the ERC filter is switched, and the filter constant can
thus be changed.
10k Ω
470 ΩNC
V
U
Vin Vout
V
V
V
W
0.1µF
FSW0
FSW1
FSW2
100k Ω
Figure 8-6 Schematic Diagram of 3-Phase Voltage Detection Filter Switching Circuit
Table 8.2 3-Phase Voltage Detection Filter Switching Circuit
FWS No.
Pin Signal Level
Filter Circuit State
Connected RL78/G1F Pin
FSW0
High
NC
P60
Low
0.1µF
FSW1
High
NC
P61
Low
0.1µF
FSW2
High
NC
P62
Low
0.1µF

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8.6 LEDs
This board integrates two LEDs. The user can control the LEDs from the microcontroller.
Table 8.3 LEDs
LED No.
Pin Signal Level
LED State
Connected RL78/G1F Pin
LED1
High
Off
P63
Low
On
LED2
High
Off
P74
Low
On
8.7 Tact Switch
This board integrates two tack switches: SW1 and SW2. The user can define the behavior of them.
Table 8.4 Tact Switch
SW No.
Pin Signal Level
Switch Setting
Connected RL78/G1F Pin
SW1
High
Off
P124
Low
On
SW2
High
Off
P123
Low
On
8.8 Analog Signal Input Connector
This board integrates connectors for inputting analog signals. Table 8.5 lists the pin assignment for each
connector.
Table 8.5 Pin Assignment of Analog Signal Input Connectors (CN1/CN7)
Connector No.
Pin No.
Pin Function
Connected RL78/G1F Pin
CN1
Analog In1
1
5V
VCC
2
Analog input
P147/ANI18
CN7
Analog In0
1
5V
VCC
2
Analog input
P120/ANI19
When using these connectors, be sure to connect them to the compatible connector shown in Table 8.6
below.
Table 8.6 Compatible Connector
Part
Part No.
Manufacturer
Connector
XHP-2
J.S.T. Mfg. Co. Ltd.
Table 8.7 Analog Signal Input Voltage Range
Item
Specification
Input voltage range [V]
0 to AVCC

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8.9 Serial Communication Connector
This board integrates connectors for serial communication connection. Table 8.8 lists the pin assignment
for each connector.
Table 8.8 Pin Assignment of Serial Communication Connectors (CN4/CN8)
Connector No.
Pin No.
Pin Function
Connected RL78/G1F Pin
CN4
UART0
1
5V
VCC
2
Transmission
P17/TXD0
3
Reception
P16/RXD0
4
GND
VSS
CN8
UART1
1
5V
VCC
2
Transmission
P72/TXD1
3
Reception
P73/RXD1
4
GND
VSS
When using these connectors, be sure to connect them to the compatible connector shown in Table 8.9
below.
Table 8.9 Compatible Connector
Part
Part No.
Manufacturer
Connector
XHP-4
J.S.T. Mfg. Co. Ltd.

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8.10 I2C Communication Connector
This board integrates a connector for I2C communication connection. Table 8.10 lists the pin assignment
for the connector.
Table 8.10 Pin Assignment of I2C Communication Connector (CN6)
Connector No.
Pin No.
Pin Function
Connected RL78/G1F Pin
CN6
I2C
1
5V
VCC
2
SCL
P71/SDA21
3
SDA
P70/SCL21
4
GND
VSS
When using this connector, be sure to connect it to the compatible connector shown in Table 8.11 below.
Table 8.11 Compatible Connector
Part
Part No.
Manufacturer
Connector
XHP-4
J.S.T. Mfg. Co. Ltd.
8.11 Hall Sensor Signal Input Connector
This board integrates a connector for Hall sensor signal input. This connector enables to input the Hall
sensor signal from the supplied motor. The Hall sensor signal is pulled up to 5 V and then passed through an
RC filter before being input to the board. Table 8.12 lists the pin assignment of the Hall sensor signal input
connector.
Table 8.12 Pin Assignment of Hall Sensor Signal Input Connector (CN5)
Pin No.
Pin Function
Connected RL78/G1F Pin
1
5V
VCC
2
GND
VSS
3
HU
P30/INTP3
4
HV
P75/INTP9
5
HW
P31/INTP4
When using this connector, be sure to connect it to the compatible connector shown in Table 8.13 below.
Table 8.13 Compatible Connector
Part
Part No.
Manufacturer
Connector
XHP-5
J.S.T. Mfg. Co. Ltd.

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8.12 Encoder Signal Input Connector
The encoder signal input function can input the encoder signals from the target motor. The encoder signal
is pulled up to 5 V and passed through an RC filter before being input to the microcontroller. Table 8.14 lists
the pin assignment of the encoder signal input connector.
Table 8.14 Pin Assignment of Encoder Signal Input Connector (CN2)
Pin No.
Pin Function
Connected RL78/G1F Pin
1
5V
VCC
2
GND
VSS
3
A-phase
P00/TRDCLKA
4
B-phase
P01/TRDCLKB
5
Z-phase
P50/INTP1
When using this connector, be sure to connect it to the compatible connector shown in Table 8.15 below.
Table 8.15 Compatible Connector
Part
Part No.
Manufacturer
Connector
XHP-5
J.S.T. Mfg. Co. Ltd.
8.13 Emulator Connector
When the board is connected with an emulator via the emulator connector, it is possible to write data from
the emulator. Table 8.14 lists the pin assignment of the emulator connector.
Table 8.16 Pin Assignment of Emulator Connector (CN3)
Pin No.
Pin Function
Connected RL78/G1F Pin
1
5V
VCC
2
NC
NC
3
Debugger data Input/output
P40/TOOL0
4
System reset input
P125/RESET
5
GND
VSS
When using this connector, be sure to connect it to the compatible connector shown in Table 8.15 below.
Table 8.17 Compatible Connector
Part
Part No.
Manufacturer
Connector
XHP-5
J.S.T. Mfg. Co. Ltd.
When the conversion board (P014012-1-005) is used, the signals input via the emulator connector can
be converted for connection.
Figure 8-7 Conversion Boards (P014012-1-005)