Electronic switch 20A (opto)
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Electronic switch 20A (opto)
Content
Page
1
Description .................................................................................................................................................. 1
2
Installation .................................................................................................................................................. 2
2.1
Elektrical Installation ................................................................................................................................... 2
2.2
Mechanical Installation ................................................................................................................................ 2
3
Programming .............................................................................................................................................. 2
3.1
ON-Threshold/ON-Range ............................................................................................................................ 2
3.2
Checking/Changing the operation mode ...................................................................................................... 2
3.3
Changing the pulse width in Mode 2 ........................................................................................................... 2
4
LED-Display ............................................................................................................................................... 3
4.1
internal green LED ....................................................................................................................................... 3
4.2
external blue LED ........................................................................................................................................ 3
5
Technical data............................................................................................................................................. 3
6
Accessories .................................................................................................................................................. 4
6.1
external blue LED ........................................................................................................................................ 4
6.2
Magnet ......................................................................................................................................................... 4
6.3
KAVAN Universal Glow-Plug Connector ................................................................................................... 4
7
EG-Declaration of Conformity ................................................................................................................. 4
8
Instructions for disposal ............................................................................................................................ 4
1
Description
The electronic switch (opto) is a small device without any moving parts. Therefore it is resistant to any kind of
impact and vibration. It is especially designed for the rough environment in RC-models. Due to the flexible
programmability it can be used for virtually any application like lights, ignition, pyrotechnics, but also for
functional models like tanks, trucks and many more. It is also possible to control more than one electronic switches
with only 1 channel of your radio.
The output can be used in 2 different modes, either „ON“ or pulsed (PWM) with adjustable pulse width. This is e.g.
useful for directly driving glow plugs or other loads without the need for a separate driver.
The electronic switch (opto) is controlled by a microcontroller
and galvanically isolated via an optocoupler from
the load side.
You can use a separate power source for the load. The electronic switch (opto) switches the positive
line.
The electronic switch is connected to a servo terminal on the receiver.
It can be easily programmed with a magnet. The operating mode, switch state, programming and malfunctions are
signalled with the integrated green LED.
The optional "external blue LED" can be connected to the electronic switch (opto) and should be placed
somewhere visible from outside of the model. The external LED is only lit when the switch status is "ON" and the
external power source is connected. This helps when looking for faults (dead battery, damaged cable, ...).
If the servo-signal is missing for more than 2.5 seconds, the load is switched OFF and cannot be activated unless
the receiver is power cycled. Also, the green LED will blink every half second.
Using Mode1 the electronic switch can be used as ignition switch for gas engines. Using Mode2 the electronic
switch can be used to directly drive glow plugs for methanol motors without the need for a voltage regulator. If
there is no free channel on the receiver left, the electronic switch (opto) can be used on the same channel with the
throttle servo. The "ON" range has to be programmed for the whole range of the throttle stick. To disable the
ignition, use throttle cut or throttle trim to move the throttle signal below. You should consider programming the
failsafe settings to cut the ignition.
Make sure you perform a range check with activated electronic switch before flying your model !
