YGE 90 LV User manual

YGE 90 LV, 120 LV and 120 LV K (V3) electronic speed controller (ESC)
Governor preprogrammed (mode 2)
Technical data:
- The specified current is the maximum continuous full power current with adequate cooling.
- 3 to 6s LiPo, with under voltage protection by power reduction.
- disconnectable under voltage detection.
- switching BEC: 5.7V / 7.4V / 8.0V, 8A continuous, 18A peak.
- 2 BEC cabels (Master and Slave)
Please follow the instructions in this manual regarding the BEC!
- Speed regulation (Governor mode).
- Vbar governor ready with speed sense output.
- Soft start.
- Active free-wheel, allowing unlimited part load operation.
- Automatic or 6 step adjustable timing.
- 3 steps adjustable back EMF brake.
- Switching rate: 8 to 16 kHz.
- Speed limit: 240,000 RPM (2-Pole motors).
- Temperature and overload warning.
- Anti sparkling circuit: reduces connection sparkles.
- Mode - Programming
Mode 2:
The controller is programmed for governor use. You do not
have to program anything else. The throttle end points are
set to 1.1 ... 1.9ms. This throttle curve will then correspond
to 0 to 100% with the transmitter.
If you want to fly different rpms and switch them in flight, you
have to start the model with the highest rpm.
Mode 3:
In Gov-Store you have to switch once to the highest possible
rpm (e.g. 90%) in order to learn in the motor parameters.
Thereafter you can start with the lowest rpm and switch in
flight if you want.
The Gov function starts from 50% of the throttle opening.
That is why we do not recommend to operate the heli under
50%.
Information to mode 1...3
We recommend the following throttle openings:
Hover (Low RPM) 55 ... 60%
Standard 70%
3D 80 ... 85%
In case rotation is too high with the recommended throttle
openings, you should choose a lower pinion or a motor with
less kv.
Initial setup:
Connect the master J/R cable to the receiver throttle channel
or FBL System and the red/brown Slave into an empty slot
or using an Y-link parallel to a servo output. If you want to
use the Vbar governor, connect the orange Slave to the Vbar
sensor input.
Once you have connected the battery (red = positiv, black =
neg.), you will hear 3 descending beeps. Thereafter you will
hear a number of beeps according to the cell number of the
connected Lipo battery. In case the transmitter stick is in the
throttle off position, you will now hear 3 ascending tones.
You need to connect the motor to hear the beeps, as it is the
motor itself which acts as a speaker.
--- The ESC is ready to use. ---
If the motor turns in the wrong direction, exchange simply 2
of the 3 motor wires.
Use only clean and tight gold connectors for motor and
battery. Pay attention to the battery connector and choose a
safe polarity system. Exchange low-friction or oxidized
plugs and sockets. Because only tight sitting contacts will
ensure a high current flow, protect the speed controller
against dangerous voltage peaks and avoid disturbances.
With all ESC types, the entire wire length, from the
controller to the battery, may not exceed 25cm. If longer
wires are necessary, a low ESR switching capacitor of
330µF/25V should be soldered between plus and minus
wires every 20cm. You might also consider using our
capacitor module YGE Cap´s typ 5. Likewise the motor
wires can be extended. Then please twist the 3 lines to
minimize interference emission.
Note: Inverting the battery polarity leads to heavy
damage and to the loss of warranty!!!
Mode Programming:
1. For safety reasons remove ALL rotor blades!
2. Switch on TX and move the throttle stick to maximum.
3. Connect the battery to the ESC →wait for the interval beep:
♪♪♪♪♪♪♪♪♪♪♪♪♪♪♪♪♪♪♪♪ after 20 beeps the setup menu is
entered: confirmation ♪♪ .
4. Move the throttle stick to minimum and choose the mode:
♪Vbar - gov Mode 1
♪♪ Gov - mode Mode 2
♪♪♪ Gov - store Mode 3
♪♪♪♪ Glider with folding propeller and brake Mode 4
♪♪♪♪♪ Motor plane without brake Mode 5
5. Once you are In the wanted mode, move the throttle stick to
maximum: confirmation ♪♪.
If no mode was selected, the mode programming starts again
with mode 1 = Vbar - gov.
6. Once a mode was selected, move the throttle stick to
minimum: confirmation ♪♪.
Now the ESC is armed and ready for use.
For more information see back of the page.
Type 90 LV 120 LV 120 LV K
Overall dimensions in mm 72 x 32 x 13 72 x 32 x 13 72 x 32 x 19
Weight in g without/with wires 53/83 55/85 68/98
Cable diameter Battery/Motor 4² / 4² 4² / 4² 4² / 4²

When activating one of the modes, all relevant heli
parameters are set to default. The default will fit almost all
setups. You don’t need to program anything else.
Here is a list of the default settings. (mode 2)
- Timing = 18°
- Brake off
- cut off type / accutype = slow down / Lipo
- cells = none = automatically cell count
- Act. Freew. on / Gov on
- P-Gain = 0,9
- I-Gain = 0,05
- Startup Speed = Heli middle
- PWM-Frequency = 9 kHz
- Startup Power = Auto 1-32
If it is necessary to change the settings, you need the YGE
programming card
In case another mode is selected, all settings are back on
default.
Autorotation (AR) and bailout:
To use the bailout, the motor should not be switched off
during autorotation! Or the ESC uses normal soft start if
switched back to flight mode. The motor needs some rpm for
the bailout, therefore set the rpm very low: the helicopter
should not be able to lift off. We recommend 10 ... 20%
throttle opening. If set too low, the motor or ESC might
overload.
Always makes the bailout at a safe height!
As soon as the model is on the ground, the motor has to be
switched off completely, otherwise there is no soft-start and
bailout is active!
Lipo protection / under-voltage protection:
Because of the tension driven load adjustment, it is possible
to fly further with low power, since the battery will recover with
a smaller load. However, if the tension continues to break in,
the motor will switch off.
Active free-wheel:
The unlimited partial load capability refers to the maximum full
power current.
Temperature / overload warning:
If the Esc, while being operated, gets too hot, the motor will be
reduced to 75% of the current throttle opening. After landing a
warning signal will be issued. (3 single beeps).
The partial load operation between half and nearly full power
is the most difficult area for an ESC. In case of repeated
temperature warnings, better cooling should be provided or
the current should be reduced.
These warnings are to be regarded as overload warnings and
not as normal operating condition. Because at high
temperature the components are strongly stressed, this leads
to a decreased life time.
A high temperature the components are strongly stressed; this
leads to a decreased life time.
In order to avoid heat built-up, you will achieve better cooling
not just through sufficiently dimensioned air intake, but even
more efficiently through a larger air escape.
You achieve smaller currents by using a smaller propeller or a
one cell smaller battery.
If the speed controller’s temperature exceeds its limit, after
landing and/or motor stop, a warning signal is issued (3 Beeps
in the interval). But the motor is not switched off in flight
unless the temperature becomes extremely critical, then the
motor will switch off!
The partial load operation between half and nearly full power
is the most difficult area for an ESC. In case of repeated
temperature warnings, better cooling should be provided or
the current should be reduced. These warnings are to be
regarded as overload warnings and not as normal operating
conditions. Because the components are strongly stressed at
high temperature, this leads to a decreased life time.
In order to avoid heat built-up, you will achieve better cooling not
just through sufficiently dimensioned air intake, but even more
efficiently through a larger air escape.
You achieve smaller currents by using a smaller propeller or a
one cell smaller battery.
BEC:
Please look at the label holding the 3 yellow cables to the right-
hand side. There you will find 3 possible BEC voltages, which
can be set-up with the Jumper and 4-pole male multi-point
connector.
YGE 90 LV and 120 LV
On delivery, the Jumper is on level 5,7V. (Now the top two male
connectors are linked). If you connect the two male connectors
in the middle, the BEC is on 7,4V. If you connect the two lower
male connectors, the BEC will be on 8V.
YGE 120 LVK
On delivery, the Jumper is on level 5,7V. (Now the two lower
male connectors are linked). If you connect the two male
connectors in the middle, the BEC is on 7,4V.If you connect the
top two male connectors, the BEC will be on 8V.
YGE 90 LV, 120 LV and 120 LVK
In case you do not connect any of the male connectors or you
loose the Jumper for whatever reason, 5,7V will be set
automatically due to safety reasons. Even 8V servos will work
smoothly.
If you use a receiver battery, the jumper must needs to be set on
the right level. For reasons of safety fix the jumper with glue or
tape before using the controller.
You can use different batteries for backup!
Step 5,7V 4-cell NiMH
Step 7,4V 2-cell Li-Io
Step 8,0V 2-cell Li-Po
The receiver battery can be connected through a switch cable
into a free plug of the receiver or through a y-cable.
Make sure no discharged backup battery is used, because this
would load the BEC additionally by charging the battery. A fully
loaded battery will not be charged.
In case you want to use a Backup-Guard, follow the manual of
the manufacturer.
You can also use the ESC without the BEC. Here you have to
separate the thin plus- wire of the Master cable or use an YGE
opto-coupler. The Slave-cable will not be used.
Caution:
As a rule it is important to make sure that no objects are within
the propeller circle when batteries are connected. The speed
controller can therefore only be used when damage and
personal injuries cannot be sustained. A damaged governor
(e.g. broken, damaged by polarity inversion or humidity) must
never be used again. Otherwise malfunctions or failure might
occur The ESC may only be powered by batteries, it is not
allowed to use power supplies.
Trouble shooting:
The ESC signals any error that happened during flight
acoustically (motor) and optically with a blinking LED code.
2 Beeps/flashes: Under-voltage identification
3 Beeps/flashes: Power-part temperature rise warning
5 Beeps/flashes: Receiver signals failed
6 Beeps/flashes: start up failed
7 Beeps/flashes: BEC temperature rise warning
Warranty:
There is 6 months warranty on the speedcontroller. Any other
requirements are excluded. In particular, this applies to the
requirements for damage or injuries compensation due to
malfunction or failure. For damage to property or personal
injuries and their consequences, which are based on our supply
or craftsmanship, we do not take any liability, since we have no
control over handling and/ or use.