Polaris 120A X3 D-Run ESC by RC OMG

OmG’s latest ESC to their line up is the POLARIS DR 120A X3 ESC, boasting a ton of great options and big boost, for all your drifting needs

Here is a summary of the important instructions and precautions for using the ESC:

General Setup and Wiring Instructions:

1. Motor and ESC Wiring:
   • When connecting the motor and ESC, ensure that the #A, #B, #C wires of the ESC are connected to the corresponding #A, #B, #C motor wires.
   • Do not change the wire sequence. If the wiring is incorrect, it may lead to the ESC being burnt out when the throttle is increased.
2. Soldering Cables:
   • Be careful not to cause any short circuits or let tin slag fall into the ESC when soldering the power and motor cables.
   • Any short circuit or debris inside the ESC can cause it and the motor to burn out instantly.
3. Capacitor Pack Connection:
   • Pay close attention to the positive and negative terminals when welding the capacitor pack to the power cable.
   • Incorrect polarity will cause the capacitor pack to burst and potentially cause damage to the ESC.
4. ESC Setup Check:
   • When testing the ESC, make sure it is connected to the motor, receiver, and battery.
   • It’s recommended to install the fan to monitor the ESC’s performance, as it’s difficult to assess its status without a connected receiver.

Operating Mode and Calibration:

1. Competition Mode (Default):
   • The factory default settings are designed for competition use, so the ESC will allow forward motion and braking but disable reverse.
   • If you want to use the ESC in practice mode (with reverse functionality), use the RCOMG OMG-ESC-P3 programming box to change the settings.
2. Throttle Calibration:
   • Calibration is required to match the ESC’s throttle range with your transmitter before use. Ensure you follow the instructions for proper calibration to avoid issues.
3. Avoid Motor Idling Test:
   • Do not test the motor idling when the ESC is turned on.
   • This can cause the ESC to overheat during acceleration, which may trigger overheat protection mode. In severe cases, both the ESC and motor may burn out.

Boost and Turbo Time Settings:

1. Boost and Turbo Time:
   • For beginners using a sensored brushless motor, it is recommended to set the BOOST TIME to 0 degrees and the TURBO TIME to a maximum of 10 degrees.
   • For skilled players, the BOOST TIME can be gradually increased based on your car’s type, motor, and gear ratio. However, it should not exceed 15 degrees for the BOOST TIME and 20 degrees for the TURBO TIME to avoid overheating.
2. Temperature Check:
   • If you notice that the motor gets too hot, this is a sign that the BOOST TIME value may need to be reduced.
3. Total Advance Angle Limitation:
   • The combined total of the motor’s mechanical advance angle, BOOST TIME, and TURBO TIME should never exceed 60 degrees.
   • Formula:
     Motor advance angle (mechanical 0 advance angle) + BOOST TIME + TURBO TIME < 60 degrees.

Important Warnings:

• Signal Wiring and Short Circuits: Always double-check the connections to avoid short circuits or incorrect wiring, which can immediately damage the ESC or motor.
• ESC Overheating: The ESC is a competition-grade ESC, which may overheat if not properly calibrated or if excessive settings like BOOST TIME and TURBO TIME are used. Always monitor the motor and ESC temperature to prevent damage.

By following these steps and guidelines, you’ll ensure that your ESC performs optimally and safely in both competition and practice settings.

Specifications:

• Continued Current: 120A
• Burst Current: 760A
• Supported Voltage: 2-3S lithium battery
• BEC Output: 6-5V/3-5A Linear regulator mode
• Fan Operating Voltage: 5V@0.16A, Max:13V(Direct voltage from battery without DC regulating)
• Motor Connection Line: 12 AWG
• Battery Connection Line: 12 AWG
• Dimensions(Including fan): 41x39x32mm
• Weight(Including accessories): 112g
• Motor Type Supported: Sensored brushless motors   
• Cars Applicable: Drifts/on-road cars/off-road cars

Source: RC OMG