12. Speed Controller "GUEC GE-221"
Before taking the speed controller into operating, read the notes on operation and programming carefully.
Performance Characteristics
• Compatible with lithium and nickel rechargeable batteries (LiIon-, LiPo- and NiMH-, NiCd-batteries)
• Extremely low internal resistance for the lowest possible voltage drop.
• Protective switching for undervoltage, overheating and RC signal loss
• 3 start modes: Normal, soft, very soft for direct or gear drives
• Configurable throttle range for all transmitters on the market
• Straight-lined and quick throttle acceptance
• Microprocessor with separate voltage controller for best interference suppression
• Max. speed 210,000 rpm (for 2-pin motors), 70,000 rpm (6-pin), 35,000 rpm (12-pin)
• Programming via programming card or transmitter possible
Programmable Settings
Attention, important!
Before taking the speed controller into operation, you always have to programme the controller individually to the
helicopter or plane model used by you.
1.
Braking: Off / On (standard setting: off)
2.
Battery type: Lithium (LiIo- or LiPo-batteries) / NiCd-/NiMH-batteries (standard setting: Lithium)
3.
Cut-off mode: Soft = step-by-step decrease of the output performance / hard = immediate switch-off of the output
performance (default setting: soft)
4.
Cut-off switching threshold: Low / medium / high (default settings: medium)
For Lithium batteries, the values correspond to 2.6 / 2.85 V / 3.1 V per cell.
For NiMH batteries, the values correspond to 0% / 45% / 60% of the starting voltage.
5.
Start mode: Normal / soft / very soft (default setting: very soft)
The setting "normal" is recommended for flight models with direct drive.
The settings "soft" with 1 s start-up time and "very soft" with approx. 2 s start-up time are mainly suitable for flight
models with gear motors and helicopter models.
If the motor is switched off after starting and full throttle is activated again within 3 seconds, the controller briefly
switches from "soft" or "very soft" to "normal" to prevent danger of damage to the model from the delayed throttle
acceptance.
6.
Timing: Low / medium / high (default settings: low)
Usually, low timing values are sufficient for most motors. For 2-pole motors, we recommend the setting "low"; for 6- or
more-pole motors, we recommend the setting "medium". Since there is a great many different motors on the market,
you should determine the best timing value for your own. Usually, slightly higher timing values will also provide slightly
more power; at the same time, however, it increases power consumption and thermal load of the motor, controller and
battery.
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