MVVS 45 IFS User Manual

THE IGNITION ICU-S, ICU-P ver. 2.0

programming cable

jumper

LED

ignition

Package content:

- ignition,

- LED,

- programming cable,

- jumper,

- manual.

SERVO

servo connector

EXTENSION

extension connector for LED

and serial communication

PROGRAMMING

programming connector

If you need more

information

about serial port,

please contact
manufacturer.

POWER

power connector

DESCRIPTION:
The ignition ICU-S and ICU-P offer special system “easy – start”. This system simplifies engine starting thereby the ignition controls a choke valve.
The choke is controlled by servo connected to the ignition. The ignition processor controls servo according to the program stored in memory. The most
important benefit of this system is easy start procedure. After power-up and battery test (when enabled) only turning the propeller is needed for engine
start. The “easy – start” system protects the engine from flooding or lean air-gasoline mixture when starting.
After power-up and battery test (when enabled) the choke valve position is regulated by the ignition depending on propeller turning. When using “easy
– start” system the ignition must learn both choke valve positions (open and closed). The type of silencer (preignition curve) must be set in programming
mode, too.

BASIC FEATURES:

– automatic choke valve control,
– two preprogrammed preignition curves for (“short” – default setting

and “long” silencer),

– one programmable preignition curve,

– with or without battery test (for Li-Ion or Li-Pol battery),
– battery level signalization (it will not work if battery voltage is lower

than 6,5 V (for S) and 9,5 (for P) and battery test feature is enabled),

– ignition goes off if engine runs counter clockwise.

– sleep mode after 90 sec of engine inactivity,

TECHNICAL DATA:

Version Standard Professional

Weight 155 g 155 g
Power supply 2x LiIon / LiPol

Minimal battery voltage 6,5 V 9,5 V

sleep mode after 90 sec of engine inactivity
battery level signalization
ignition goes off if engine runs counter clockwise

Never use ignition with unplugged boot from plug! Before first flight check range of controlling equipment with running engine as well do the interference check!

6x NiCd / NiMh

3x LiIon / LiPol
9x NiCd / NiMh

Version Standard Professional

Enabling / disabling battery test yes yes
Enabling / disabling battery test yes yes
Customizing of preignition curve yes yes
Preignition point 5 ° 5 °
Location of the magnet 240° / 120° 240° / 120°
Min. battery capacity 600 mAh 1 Ah

ENABLING OR DISABLING BATTERY

Ignition makes enable or disable battery test possible. Battery test is very useful

when Li-Pol or Li-Ion battery are used. During the test a series of flashes are

generated and voltage is measured. When test passed correctly, battery has energy
for minimal 10 minutes of flight.

- battery test is disabled (default settings – when jumper is removed and program­ming pins are open),

- battery test is enabled – programming pins are closed by enclosed jumper).

Enable or disable battery test when the ignition is off.

BATTERY TEST
ENABLED:

– close programming pins with

enclosed jumper.

BATTERY TEST
DISABLED:

– open programming pins

(remove jumper).

INSTRUCTION – INSTALLATION AND POWER UP

If you want to change the type of silencer, do first all of two steps and then continue to the next page with title

PROGRAMMING SEQUENCE. In the other case follow the next sequence.

FIRST STEP:

- screw on pickup on engine,

- attach the plastic protection to the high
voltage cable,

- connect boot to plug,

- mount ring tongue terminal on the cable
from boot (ring faston) under a nut holding
the engine to the motor mount,

- fasten ignition to airplane.

SECOND STEP: START:

- connec t enclosed LED to the ignition
(red or red/black wire to left).

- keep clear of the propeller,

- connect battery with the ignition box.

STARTING SEQUENCE:

- move propeller to open exhaust channel on engine (bottom center),

- put your hands outside propeller radius, otherwise you risk serious injury,

- hold on your airplane, switch on ignition,

- ignition starts battery test. During this test the series of sparks are generated for cca 5 sec and LED is blinking,

- if LED turns off, you can fly, otherwise battery is low.

ICU-S-ICU-P 2_0 EN.indd 1 4.10.2011 20:28:04

Type Problem Solution

- fast blinking
(after power up)

battery test is
running

Wait a while.

- fast blinking
(5sec after power up)

battery volta­ge is low

Charge battery. Voltage is lower than 6,5V
(for S version) or 9,5V (for P version).

- one short flash per
second

sleep mode
spark is
blocked

Unplug battery and reconnect it again.

PROGRAMMING SEQUENCE:

Ignition needs to learn both positions of choke and type of silencer.

- firstly prepare ignition for programming (plug servo, plug programming cable to
receiver, power up receiver, power up transmitter, power up ignition,

- secondly set close position of choke,

- thirdly set open position of choke,

- fourthly chose type of silencer,

- finally power off ignition, unplug programming cable and return throttle servo
to receiver.

FIRST STEP:

- connect servo to servo connector.

SECOND STEP:

- connect ignition to receiver (throttle channel) with enclosed cable,

- connect battery to receiver,

- switch on transmitter,

- set throttle to the centre.

THIRD STEP: FOURTH STEP:

- keep clear of the propeller,

- power up ignition.

- move throttle stick until choke valve is completely closed,

- af ter aprox. 5 sec without move, LED blink and choke will move its position

to centre (PWM 1.5 ms) and after while it will return back.

Air flow Choke

FIFTH STEP:

- move throttle stick until choke valve is completely open,

- af ter cca 5 sec without move, LED blink and choke will move its position
to close and after while it will return back to open and close position.

Air flow Choke

SIXTH STEP:

a) SHORT SILENCER SETUP

- don’t move (at least 5 sec) the throttle stick (choke valve will still stay in open po­sition), means the preignition curve for a short silencer is automatically installed,
LED is blinking in short intervals.

Air flow Choke Air flow Choke

LAST STEP:

- power off ignition,

- power off receiver, unplug programming cable, return throttle servo to receiver,

- connect enclosed LED to the ignition (red or red/black wire to left).

LED BLINKING INDICATION

b) LONG SILENCER SETUP

- move the choke valve in closed position and wait at least 5 sec. Preignition curve
for a long silencer is installed, LED is blinking in long intervals.

NORMAL OPERATION:

- power up ignition,

- the rest is described in Starting sequence on previous page.

Programming is necessary after first setting or when changing the preignition curve
or type of silencer. It’s not required to program the ignition before every start.
If the “easy – start” function is not required the ignition programming is not necessa­ry, the default setting is preignition curve for “short” silencer.

PRODUCER:

MSR Engines s.r.o.
Nálepkova 97
637 00 Brno / Czech
fax.: [phone]
e-mail: [e-mail]

www.msrengines.eu

WARNING!

– Use the ignition only in dr y conditions,
– use recommended number and type of cells for every ignition type,
– the product is specified for RC engines only (other use must be approved by the

manufacturer),

– do not take off the resister cover if the ignition is on,

The manufacturer is not responsible for damages caused by not following the manual and misuse the ignition other than in RC engines!
You will lost your guarantee if you damage the high voltage (HV) cable or HV isolation, pickup, reverse the batteries or open ignition box!

ICU-S-ICU-P 2_0 EN.indd 2 4.10.2011 20:28:04

– danger of elec tric injury (voltage over 20 000 V),
– recharge ignition battery only outside the model,
– because of possible inter ferences, ignition and battery should be placed

at least 25 cm from the receiver!

– DON‘ T USE high power servo (or digital).