The PM07 serves the purpose of a Power Module as well as a Power Distribution Board. It supplies regulated 5.2V to the flight controller from the battery and provides current consumption and battery voltage measurements via an analog signal through a 6 Pin JST-GH cable, along with integrated ESC power & signal distribution for up to 8 ESCs. It is designed specifically for flight controllers that do not have built-in servo header pins like the Pixhawk 6C & Pixhawk 4. It comes with pre-soldered wires, a capacitor, and an XT60 connector.
To power the flight controller, connect one of the PWR ports of PMB to one of the strong >POWER ports on the flight controller.
Note that the PM07 does not supply power to the servos via the + and – pins of strong >FMU PWM-OUT
The 5V output on the ADC rail is supplied from the flight controller CAP&ADC port, not PM07 itself.
Note: CAP & ADC port does not exist in some flight controller
Note: If using a plane or rover, the 8-pin power (+) rail of FMU PWM-OUT will need to be separately powered in order to drive servos for rudders, elevons, etc.
To do this, the power rail needs to be connected to a BEC-equipped ESC, a standalone 5V BEC, or a 2S LiPo battery.
Note:
Depending on your airframe type, refer to Airframe Reference to connect the I/O PWM OUT and FMU PWM OUT ports of FC to the PM board.
MAIN outputs in PX4 firmware map to the I/O PWM OUT port whereas AUX outputs map to FMU PWM OUT. For example,
MAIN1 maps to IO_CH1 pin of I/O PWM OUT and AUX1 maps to FMU_CH1 pin of FMU PWM OUT. FMU PWM-IN of PM board is internally connected to FMU PWM-OUT, which is used to drive servos (e.g. aileron, elevator, rudder, elevon, gear, flaps, gimbal, steering). I/O PWM-IN of the PM board is internally connected to M1-8, which is used to drive motors (e.g. throttle in Plane, VTOL, and Rover).
The following table summarizes how to connect your Flight Controller's PWM OUT ports to PMB’s PWM-IN ports, depending on the PX4 Airframe Reference. You can find this reference online in the PX4 User Guide.
PX4 Airframe Reference
Connection between FC –> PM07
MAIN: motor
I/O PWM OUT –> I/O PWM IN
MAIN: servo
I/O PWM OUT –> FMU PWM IN
AUX: motor
FMU PWM OUT –> I/O PWM IN
AUX: servo
FMU PWM OUT –> FMU PWM IN
The pinout of Pixhawk 4 & 6C ‘s power ports is shown below. The CURRENT signal should carry an analog voltage from 0-3.3V for 0-120A as default. The VOLTAGE signal should carry an analog voltage from 0-3.3V for 0-60A as default. The VCC lines have to offer at least 3A continuous and should default to 5.1V. A lower voltage of 5V is still acceptable but not recommended.
Power 1, Power 2 port
Pin
Signal
Volt
1(red)
VCC
+5V
2(blk)
VCC
+5V
3(blk)
CURRENT
+3.3V
4(blk)
VOLTAGE
+3.3V
5(blk)
GND
GND
6(blk)
GND
GND
Specifications锛?
PCB Cont. Current Rating: 90A PCB
Burst Current Rating: 140A (<60 Sec)
Max Current Sensing: 120A
5V Output current:3A
Input battery: 2~12S
Mechanical Specifications:
Dimensions:68*50*10 mm
Mounting Holes:45*45mm
Weight: 40.3g
Current Rating
The XT60 plug and 12AWG wire that PM07 comes with is rated for 30A continuous current
and 60A instantaneous current (<1 minute). If a higher current is being used, the plug type and wire size should be changed accordingly. Refer to Connector & Wire Rating
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