3W 28i QS Handmatig - Pagina 18

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intelligent Ignition System with microprozessor controlled auto timing
General
For optimum operation of combustion engines an ignition system with auto timing is necessary. For easy starting up a spark is ideal in the upper
dead point position of the piston. With increasing rpm a pre-ignition timing up to 30 degree is needed. This is achieved with our new system
using a high precision rpm-check by two magnets built-in the hub of the engine. The hall sensor transmits the signal to the microprocessor,
programmed with our engine characteristic.
Technical specifications
Temperature range:
Voltage range:
Operating voltage
Suggested battery capacity
Open - circuit current
Current - consumption
Ignition Voltage
Rpm. max
Magnet red (North Pole)
Magnet green (South Pole)
*current consumption depends on the voltage of battery used with increasing voltage, current consumption goes down.
Like all other electronic devices the ignition box gets warm under operating conditions. For that reason a simple airflow has to be guaranteed.
Therefore the 4 delivered rubber mounts have to be used for installation, insuring a one millimetre gap underneath the box.
Cable information
Sensor cable multi coloured (4 wires)
Red / black long with socket
Red / black short with plug
Yellow / white with plug
Info about red LED
a)
Ignition battery switched on:
b)
Propeller 2 turns (flip):
c)
Propeller not being turned (flipped), after a few seconds:
- The engine cannot be started by coincidence if somebody forgot to switch off the ignition
- Battery will be protected against incidental discharge
d)
In case the LED will not get off when propeller is turned (flipped): hall sensor is not connected or other defect
Since June 2003 the operating voltage is 6,0V - 5 cells NiCd or NimH or 2 Lipo cells (2S) can be used without voltage regulators. Ignitions,
wich were built before 2003 need 4,8V (4 cells). The IIS ignition system may not be attached to a voltage regulator. This is already integrated
and regulates the input voltage to 5V. The Ignition is set by factory no adjustment is requiered.
IIS - IGNITION SYSTEM 4.4
o
o
- 40
C / + 60
C
4,8 - 8,4 V
One - cylinder
6 V NICAD / 7,4 V LiPo can be connected without voltage regulator
1700 mAh
18 mA
20-25 mA
80-100 mA*
700-950 mA*
1000-1200 mA*
> 20 kV
12.000 rpm
upper dead point
o
55
before upper dead point
to sensor
to battery
connection for red LED, long contact -
connection for 3W tachometer and other options
This safety function has two reasons:
more infos: www.3w-modellmotoren.de
ambient temperature
0 rpm
1000 rpm
6000 rpm
10.000 rpm
LED on
LED off - ignition in standby
LED on, ignition in standby
two - cylinder
2400 mAh
18 mA
20-25 mA
90-130 mA*
1000 rpm
800-1000 mA*
6000 rpm
900-1300 mA*
10.000 rpm
> 20 kV
12.000 rpm
upper dead point
o
55
before upper dead point
0 rpm