Product overview
The CKESC Apex 200A 24S from Nanchang Changkong Technology is a UAV electronic speed controller for brushless propulsion integration. Its physical envelope is 140.4 × 69.6 × 36.5mm, with a weight of 576g including wiring. It accepts a 12–24S supply and supports 120A continuous operation with specified cooling, while its 200A maximum operating current applies for three seconds. Shielded signal wiring and optically isolated input/output interfaces address interference. No BEC is included, which is a material consideration when planning the aircraft’s power architecture.
The standard control interface is PWM, with optional PWM+CAN communication and data storage capability. Serial telemetry provides supply voltage, motor speed, current, ESC temperature and debugging data. Default firmware allows timing adjustment; a fixed timing version is optional, and maximum power mode can be enabled. The operating ambient range is -20 to +65°C, with IP54 protection and customizable IP67 protection. Low-voltage protection is disabled by default. Above 115°C, power is progressively reduced, potentially to 40% of full-throttle power; a motor stall at high throttle can still damage the controller.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | Nanchang Changkong Technology, CKESC Apex 200A 24S |
| Product type and nominal specification | UAV electronic speed controller, Apex 200A 24S |
| Supported supply configuration | 200A 12~24S |
| Dimensions | 140.4 × 69.6 × 36.5mm |
| Weight | 576gIncluding wiring. |
| Continuous operating current | 120AWith specified cooling. |
| Maximum operating current | 200AFor 3 seconds. |
| Standby consumption | ≤10mAAt 100V. |
| Throttle pulse range | 1000–2000us |
| Throttle refresh rate | 50–500HzRecommended refresh rate: 100–400Hz. |
| BEC | None |
| Input signal level | 3.3–5V |
| Temperature protection point | 115°C |
| Communication and data storage | PWM; optional PWM+CAN with data storage capabilityPWM+CAN is optional. |
| Operating ambient temperature | -20 to +65°C |
| Throttle response time | 400ms |
| Ingress protection | IP54IP67 can be customized. |
| Firmware configuration | Adjustable timing firmware supplied by default; fixed timing version optional; maximum power mode can be enabledDefault firmware uses adjustable timing; fixed timing firmware is optional. |
| Serial telemetry | Real-time supply voltage, motor speed, current, ESC temperature and debugging data |
| Signal interference measures | Shielded signal wiring and optically isolated signal input/output interfaces |
| Low-voltage protection | Optional customized activation of low-voltage protectionDisabled by default; activation can be customized. |
| High-voltage protection | Motor startup is inhibitedWhen supply voltage exceeds the permitted value. |
| Startup protection | Limits startup current and automatically retries startupFollowing an unsuccessful startup. |
| Stall protection and limitation | Attempts to restart after a stallWhen a running motor stalls; a stall at high throttle may damage the ESC. |
| Overtemperature protection | Gradually reduces maximum output power, potentially down to 40% of full-throttle powerAbove 115°C; original power is restored after temperature decreases. |
| Overcurrent protection | Limits peak current to prevent exceeding the current limit |
| Overload protection | Limits maximum throttle to protect the propulsion systemWhen excessive motor load is detected. |
| Signal-loss protection | Progressively reduces output power, rapidly lowers throttle below 50% within 1–2 seconds, then slowly reduces throttle until shutdownAfter signal loss lasting 200ms. |
| Startup algorithm | Startup algorithm designed to support starting against wind |
| Adaptive operating parameters | Automatically adapts operating parameters |
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