PM07 Quick Start Guide

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 ​POWER ports on the flight controller.

Note that the PM07 does not supply power to the servos via the + and - pins of ​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

This diagram shows the internally connection of these ports

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：

• 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