# PM07 Quick Start Guide

![](https://2367252986-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLIgtGDAvVGkCKGOJb1bR%2Fuploads%2FYxztqG84U7bJ7L3zwhbl%2F1?alt=media)

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.

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Note that the PM07 does not supply power to the servos via the + and - pins of ​**FMU PWM-OUT**​.
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The 5V output on the ADC rail is supplied from the flight controller CAP\&ADC port, not PM07 itself.
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![](https://2367252986-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLIgtGDAvVGkCKGOJb1bR%2Fuploads%2FJni3XN1HDYHmoJoNCtBd%2F2?alt=media)

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Note: CAP & ADC port does not exist in some flight controller
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<figure><img src="https://2367252986-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLIgtGDAvVGkCKGOJb1bR%2Fuploads%2FBQgtj9nMwfR3v4JFnwRJ%2FPM07_Tracing1.jpg?alt=media&#x26;token=04ab4f18-c04d-4a0c-9d6a-a0b0e667323b" alt=""><figcaption><p>This diagram shows the internally connection of these ports</p></figcaption></figure>

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**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.&#x20;

To do this, the power rail needs to be connected to a BEC-equipped ESC, a standalone 5V BEC, or a 2S LiPo battery.&#x20;
{% endhint %}

{% hint style="info" %}
**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.&#x20;
* MAIN outputs in PX4 firmware map to the I/O PWM OUT port whereas AUX outputs map to FMU PWM OUT. For example,&#x20;
* 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).
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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&#x20;*****FC*****&#x20;--> 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：**&#x20;

* PCB Cont. Current Rating: 90A PCB&#x20;
* Burst Current Rating: 140A (<60 Sec)&#x20;
* Max Current Sensing: 120A
* 5V Output current:3A&#x20;
* 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-and-wire-rating](https://docs.holybro.com/power-module-and-pdb/power-module/connector-and-wire-rating "mention")