40-Amp Pro Switch-Mode BEC Brushless ESC
Prodotti simili
The E-flite 40A Pro Switch-Mode BEC Brushless ESC is a high-quality, innovative and efficient sensorless brushless electronic speed control with an integrated Switch-Mode BEC. It can operate without the need for a separate receiver battery to power your servos and receivers, saving you weight and complication. It is capable of up to 40 amps continuous current when using 3- to 6-series Li-Po battery packs. You can drive up to 7 analog or 6 digital standard-sized servos with the BEC on any recommended input voltage. This ESC also features an exposed, finned heat sink aluminum case with lightweight plastic endcaps. Additional features include safe power-arming along with advanced programmable features such as low-voltage cutoff, braking, timing, throttle input range, and more, making this truly a ‘pro series’ speed control.
- Up to 40-amp continuous current with proper air flow, with 55-amp burst current (15 seconds)
- 5-volt Switch-Mode BEC circuit capable of 2.5-amp continuous current on any recommended input voltage
- Drive up to 7 analog or 6 digital standard-sized servos with the BEC on any recommended input voltage
- 3–6S Li-Po, 9- to 18-cell Ni-Cd/Ni-MH input voltage
- Finned heat sinks
- Programmable motor braking
- Safe power-arm mode prevents accidental starts
- Programmable low-voltage cut-off with settings for 3S Li-Po (9V), 4-cell Li-Po (12V), 5-cell Li-Po (15V), 6-cell Li-Po (18V), or 70% of battery starting voltage
- Programmable soft start for helis and airplanes
- Auto motor shutdown if signal is lost or there is interference
- Programmable timing—5 user-selectable ranges for use with a large variety of brushless motors
- Programmable throttle input range (1.1–1.9 ms or 1.2–1.8 ms)
- Heli mode for starting the motor with a low speed ratio
- Utilizes new smaller MOSFETs technology to save weight
- Radio System Power On/Off Switch
- Optional RS232 Serial Link available for programming (EFLARS232)
- Pre-wired connectors—E-flite EC3 on battery input and 3.5mm female gold bullets on motor output leads
- Brake: Yes - Programmable
- Continuous Maximum Current: 40A with reasonable cooling
- Input Voltage: 10.8V - 22.2V
- Input Connector Types: 13AWG with E-flite EC3 Connector
- Output Connector Types: 13AWG with 3.5mm Female Gold Bullet Connectors
- Momentary Peak Current: 55A (15 sec)
- Dimensions (WxLxH): 33 x 68 x 13mm (1.30 x 2.70 x 0.50 in)
- Weight: 62 g (2.2 oz)
- Wire Gauge: 13AWG
Tech Notes
Servo Ratings with BEC Enabled:
Drive up to 7 analog or 6 digital standard-sized servos with the BEC on any recommended input voltage. This also includes up to 7 standard analog or 5 standard digital and 1 retract servo, perfect for 25-sized warbird conversions. Some servo combinations we have tested in various models include:
• 4 JR SPORT MN48 (JSP20040) analog mini servos—E-flite Diamante 25e ARF and J-3 Cub 25e ARF
• 4 JR DS3421 (JRPSDS3421) digital mini servos—E-flite Eratix 3D 25e ARF
• 7 JR MC35 (JSP20030) analog micro servos and 1 JR RT88 (JSP20080) retract servo—25-sized warbird
• 4 JR MC35 (JSP20030) analog micro servos—15-sized sport aerobatic
• 6 JR SPORT MN48 (JSP20040) analog mini servos—E-flite Ultra Stick 25e ARF & 15-size sport plane
Some other brands and models of servos may have significantly higher current draw. Digital servos and binding servos of any kind typically have higher current draw. As a general rule, mini and micro servos draw less current which may affect your servo usage as shown in the examples above. We recommend the use of a Hangar 9 Servo and Receiver Current Meter (HAN172), installed between the throttle lead of the ESC and receiver, to confirm current draw of the actual servos used. Also, always be sure to position the ESC for maximum airflow since cooling can significantly aid in the performance of the BEC.
Before first use, please refer to “Servo Ratings with BEC Enables” notes for BEC usage guidelines. You must follow these guidelines for safe operation. If you are using more than 7 analog standard servos, more than 6 digital standard servos, or servos with higher current draw than the BEC can deliver, you will need to disable the BEC. If you wish to disable the BEC, you must remove the red receiver wire lead and connector from the receiver lead housing, and then insulate it properly to prevent shorting. When operating with the BEC disabled, E-flite recommends the use of a separate, high-power, external BEC (like the Ultimate BEC), or receiver pack and switch using the following items to ensure trouble-free operation:
1. JR 1100mAh 4.8V Ni-MH receiver battery (JRPB4240), or similar
2. JR Switch Harness (JRPA003), or similar
40-Amp Pro Switch-Mode BEC Brushless ESC
Bulletins
Programming Menu 7 Instructions Correction
Some instructions sheets included with these ESCs had some incorrect information under Programming Menu 7, #2, a & b. The corrected instructions are listed below. We inadvertantly listed as 8kHz PWM Frequency instead of Normal Mode in 'a' and 16kHz PWM Frequency instead of Heli Mode in 'b'.
Programming Menu 7 – Operating Mode
The default setting is set to Normal (airplane) Mode, which is limited to a start-up rate of 0.25 or 1 second. Alternatively, the Heli Mode can be selected which reduces the start-up rate to 5-seconds for the first start-up and any start-up after the motor/ESC has been stopped for more than 5 seconds. This helps to prevent damaging the motor, gears or any other components from an abrupt start-up when none of the parts are moving. Any time the motor/ESC has been stopped for less than 5 seconds in Heli Mode, the start-up will be immediate. This allows power to be applied immediately, such as when aborting an auto-rotation attempt or for any other reason, to help prevent a crash. Remember, you must wait more than 5 seconds after stopping the motor/ESC in order for the 5 second start-up to occur again.
1. Move the stick to center (between 1.4 and 1.6ms) for 5 seconds, and the controller will beep 7 times, indicating you are now in Menu 7.
2. Move the throttle stick to full throttle (>1.7ms) position to make changes to the Operating Mode programming.
a. To select Normal Mode – You will hear 1 short beep. Move the throttle stick to center (between 1.4 and 1.6ms). The controller will beep 2 times, indicating you have set the program selection or leave in full throttle for 5 seconds to advance to the next selection.
b. To select Heli Mode – You will hear 2 short beeps. Move the throttle stick to center (between 1.4 and 1.6ms). The controller will beep 2 times, indicating you have set the program selection or leave in full throttle for 5 seconds to advance to the first selection again.
