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Instruction Manual BRUSHLESS CONTROL 8 - 70 Order-No. 7231 - 7237
Congratulations for buying this state of the art brushless speed controller. It is adapted for use with high efficient and powerful
brushless motors.
Important notice:
Please read this manual carefully before using your controller. Only then can you have full profit of the potential of
your controller, and avoid mistakes.
Warnings:
- The controller's CE certificate doesn't unbind users from their obligation to use ultimate caution
- Should the motor refuse to start up, or after a crash, then you should immediately set the transmitter's control stick to the OFF
position to avoid any overload to the controller.
- Use only motors delivered by GM-Racing or Graupner which are designed for the intended range of voltages!
- Use only high performance batteries by Graupner or GM-Racing. Using batteries with an increased internal resistance may
lead to the destruction of the controller! Do never use a power supply.
- Never leave your transmitter unattended when a battery is connected. In case of a deficiency this may cause an outbreak of
fire on the model or its environment.
- Neither the controller nor any other electronic components should ever come in touch with water. Protect the controller against
dust, dirt, humidity, vibrations, or other dangerous elements (with the exception of water-sealed controllers).
- Never run the motor on a separate battery. This will destroy the controller or the motor, and leads to the loss of our warranty.
- Never mix up polarities. Use plug systems which offer protection against wrong polarity. Avoid short-circuiting and blocking the
motors.
- All cables and connectors should have good insulation. Short-circuits may lead to the destruction of your motor.
- This product isn't designed for use by children under the age of 14, it isn't a toy!
- Graupner-controllers are designed for use in battery-driven, radio-controlled models only; any other use is not permissible.
Using this device on a passenger-carrying model is forbidden!
- Motors, gears or gearboxes, and propellers are dangerous objects. Never keep next to or in front of the danger area of the
drive!
- Technical defects or failures of mechanical or electronic parts may lead to an unexpected start-up of the motor, with parts of it
flying off, maybe causing severe injuries.
- Always check the service range of transmission of your model first thing while it's still on the ground (hold the model tightly!).
Try again with motor on and also with fast changes of the throttle stick.
- Don't make any changes on the structure and design of your controller unless they are described in the manual!
- Limited warranty: Graupner Ltd cannot survey the proper application of the mounting and using regulations, nor the working
methods and conditions during the installation, use, operation, and servicing of the controller. Therefore Graupner Ltd cannot
take on any liability for any loss, damage, or costs resulting from an incorrect use or operation of the product, or connected in
any way with incorrect use or operation.
- Only those components and accessory parts which have been recommended by us may be used. Use only genuine and
matching Graupner connectors and accessory parts.
- Make sure whenever you start connecting and operating the controller, that:
- your transmitter is the only one working on that frequency,
- is switched on,
- and has the throttle set to position "STOP".
- Use only high-quality batteries by Graupner or GM-Racing. Cheap or old batteries with a high internal resistance may lead to
poor performance or even to the destruction of the controller.
Connecting the speed controller:
Use only batteries with the same connection type as the speed controller is delivered with.
The speed controller should be connected to the motor with gold connectors G3.5. Use G3.5 female Order-No. 2969 for the
speed controller motor wires. Use G3.5 gold plugs female Order-No. 2970 for the motor wires.
ESC features.
1. Fully proportional forward with on/off brake and reverse
2. Smooth throttle response
3. Perfect compatible with both inrunner and outrunner motors without setting.
4. Motor rotation direction can be set.
5. Li-Po, NiCd and NiMH battery compatible
6. Selectable model type (Air, Heli, Boat, Car)
7. Various Brake( Auto / Minimum / Maximum Brake amout)
8. Governor On / Off (Only Heli)
9. One Way / Two Way (Boat & Car)
10. Automatically sets low-voltage cutoff based on input voltage
11. 32 kHz switching frequency
12. Thermal cutoff
13. Auto store on the stick Position.
14. pluggable SET-button
Installing into the model:
-
Attach the motor to the motor mount using the screws provided. Adjust the effective screw length (place washers
under the head) so that the threads do not protrude protruding inside the motor casing. The winding of your motor can
be damaged, if the screws protrude inside the motor case. See motor instructions.
Mount the speed controller in the model so that it is isolated from vibration and shock and make sure the heatsink is
-
free for best cooling. Make sure that there is sufficient cooling of the motor and speed controller by directing adequate
cooling air from the outside airflow.
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