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Attention: This ESC is not including BEC, and then it can not directly supply power to receiver. 

The multicopter is generally connected with flight control, and then the receiver will be power supplied by flight control.

The ESC does not need to set throttle route because there is a small counter code inside. It can recognize automatically.

Calibration of throttle:

1. Let flight control come into throttle calibration state or directly use throttle concentrator. For APM, first turn on the remote control, the throttle will be maximum state, then turn on APM and wait for 1 minute; then power on after APM is power failure.

2. Turn on the remote control, the throttle will be maximum state, when you listen to “di” voice, pull the throttle to the minimum and you will hear “di di”, then the calibration is finished.

Features:

²  Extremely low internal resistance

²  Super smooth and accurate throttle linearity

²  Safety thermal over-load protection

²  Auto throttle shut down in signal lose situation

²  Supports high RPM motors

²  Power arming protection (prevents the motor from accidentally running when switched ON)

²  Use new generation of the MOSFETs to make sure the ESC with low heating and more reliability

Overview:

ZTW Spider OPTO ESC is quality speed controllers and designed for simple installation and easy setup. These ESCs have been proven to offer excellent performance in Multi-rotor applications.

These ESC's features a very smooth yet linear throttle response, without sacrificing a rapid, crisp, and response to any throttle input. Super fast refresh rate up to 600Hz makes them a very smooth controller. That is to say support PWM input rates up to 600Hz for great response on your quad-copter. Fashion design and high quality with best performance but sold at very reasonable price.