MGM 100120-3 Operating Manual Download Page 42

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HBC-series V7 LV+MV

P42:

Controller feeding (Type of cells / switching-off voltage)

Parameter set type of cells, include standard switch-off voltage. Monitoring each cell is possible select for some type of cells.
Also is possible set switch-off voltage as 78% of value in moment of connection battery.
Next poss

ibility is selection of “universal cell” (UNI), when is possible set any value – this choice includes so much as type of cell, also cells which

are not available in moment of controller production.

▪

Unwatched battery voltage

–

ATTENTION

, with this setting you can damaged battery !!!

(

battery must be monitored by some external equipment

)

▪

Automat 78%

switch-off / power reducing for voltage drop to 78% of value

when connected battery

▪

Lipol (3,2V)

switch-off / power reducing for voltage drop to 3,2V / cell

▪

Lipol, monitors each cell -

switch-off / power reducing for voltage drop to 3,2V / cell (necessary external module) *)

▪

A123 (2,5V)

switch-off / power reducing for voltage drop to 2,5V / cell

▪

A123, monitors each cell -

switch-off / power reducing for voltage drop to 2,5V / cell

(necessary external module) *)

▪

Nixx (0,8V)

switch-off / power reducing for voltage drop to 0,8V / cell

▪

Pb (1,8V)

switch-off / power reducing for voltage drop to 1,8V / cell

▪

UNI universal value

switch-off / power reducing for voltage drop to set value

▪

UNI, monitors each cell

switch-off / power reducing for voltage drop to set value

(

necessary external module except 25063 and 40063 controller

)*)

▪

Power Supply

–

switch-off / power reducing for voltage drop to set value

–

ATTENTION

, with this setting you must not braking (+must not switch-off freewheel) without

connected and set braking resistors (with power switch)

!!! (controller these parameters automatically resize)

excluding controller HBC 25063-3, which has integrated this module inside, it is necessary to connect an external measuring module
into the connector ICS-2..

Note

78% Automat

mode is useful if you often change the number or type of traction battery cells (you do not have rebuilt settings). The system to

work correctly, it is necessary to

always start with a fully charged battery!

If this condition is not met, cannot be guaranteed correct disconnect-

ed motor end (turn-off) battery voltage - i.e. if you start with an already partially or fully discharged battery, can significantly over discharge cells
and destroy them (mainly in the case of Lithium cells).

P43:

Number of cells

Set used number of cells for

Lipol

A123

Nixx

and

UNI

battery.

Not operate for

Automat 78%

and

Not monitored

…. – in these two cases is parameter afield.

P78:

Battery capacity

(value in Ah)

This enables possibility watch, in real time, discharging main battery in the model by “back data transfer” via Telemetry – as “fuel tank indicator”. It
is also important to specify when using parameter

P87

Capacity countdown

P44:

Switch-off voltage / cell [ For P42=UNI ]

(value in Volts)

Set switch-off voltage for one cell for selection

UNI

cells

P45:

Empty

battery Behavior



Motor stop



Motor stop with brake



Power reduction

When the voltage drops to a preset turn-off value can be set either by a gradual reduction in power or off (with the possibility of a new turned on
after moving the joystick to the STOP position if the battery is a little "recover" and its voltage rises again).

P77:

"Empty battery" in advance warning by voltage

(alarm when battery voltage drops below that …)

(value in Volt

– overall voltage)

Defines the total battery voltage, which is activated when an external indication to connector

ICS-2

, the signal

BL_1

. Appropriate setting can be

done that the notice of impending battery will get well in advance. Please, respect real discharging curves (characteristics) for used battery.

Switching-off voltage set to safety value corresponding with choice battery
type (parameter P42, P43, P44)

– example on the picture have set

3.0 V/ cell

for Lipol, red point on blue dotted discharging curve (starting val-

ue for motor power limitation).

Early warning voltage

set to corresponding value with requested residual

energy

– example on picture have set

3.7 V/ cell

, green point on blue dot-

ted discharging curve. Please, always respect discharging characteristics of
used battery, see to values on battery producer datasheet. Always use dis-
charging curve for lower current (lowest “C” rate), blue dotted curve for
example on the picture. Residual energy is in this sample ca 10%.

In regard of unique feature of

MGM

COMPRO

controllers (recalculation of

rminal battery voltage to its internal voltage), is this voltage (≈ residual

energy) almost independent on internal battery resistance as well as on real
battery discharging current, see „

Protective and safety mechanism ….

“.

We recommend this set voltage (≈ residual energy) check by one discharg-
ing cycle on the ground (not during real flight) and verify real value of resid-
ual energy, and eventually make little correction by real result.

Profitable can be association with each cell monitoring

, by possibility of set-

ting of parameter

P42, Controller feeding.

Note:

Some types of batteries (such as A123 or LiFePO4) have extremely flat discharge curve for most of the time of discharge or even nega-

tive (end voltage increases). In these cases, early-warning mechanism does not work and can not be used - must use the "

Capacity

Countdown

" parameter

P87

Motor