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5.10 Connector for external inverter board (J6, J7)
J6 holds the PWM signals and supply voltages for an external inverter board. J7 can be
used to connect the voltage and current measurement signals to the MCU.
J6 pin
Signal
1
VCC5
2
VCC15
RTO0
3
PWM1H
RTO1
4
PWM1L
RTO2
5
PWM2H
When using an external inverter board, the internal gate drivers should be disconnected
(JP38, JP39, JP44, JP45, JP49, JP50)
J7 pin
Signal
Voltage
1
Phase A
Voltage
2
Phase B
Voltage
3
Phase C
Voltage
4
DC bus
5
FAULT
The input signals to J7 have to be conditioned externally. Even though the voltage
measurement inputs are protected by diodes against voltage peaks, care should be taken to
avoid spikes. At least, a series resistor (e.g. 1k) should be present in all MCU ADC
connections. The current sense inputs are connected directly to the MCU analog inputs
AN0-AN4 if the corresponding jumpers (JP43, JP46, JP48, JP51) are set. Refer to chapter 3
for details.
© Fujitsu Microelectronics Europe GmbH
MotorKit-91F267-MC User Guide
J6 pin
Signal
RTO3
6
PWM2L
RTO4
7
PWM3H
RTO5
8
PWM3L
GND
9
GND
10
J7 pin
Signal
GND
6
Current
7
Phase A
Current
8
Phase B
Current
9
Phase C
Current
10
DC Bus
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1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
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