GRAUPNER mx-16 ifs, Programming Manual

Page: 11 / 132

11 Operating Notes
Receiver power supply
A wide range of rechargeable four-cell and fi ve-cell NiMH
batteries varying in capacity is available for use as the
receiver power supply. If you are using digital servos we
recommend that you use a fi ve-cell (6 V) pack of gener-
ous capacity. If your model is fi tted with a mixture of
digital and analogue servos, it is important to check the
maximum permissible operating voltage of all the types.
The PRX unit, Order No.
4136 , provides a stabilised
receiver power supply with a user-variable voltage from
one or two receiver batteries; see Appendix.
For reasons of safety battery boxes or dry cells should
never be used.
For this reason you should make it a standard part
of your routine to check the state of your batteries
at regular intervals. Don’t wait until you notice
the servos running more slowly than usual before
recharging the packs.
Note:
Please refer to the main GRAUPNER FS catalogue or
visit the Internet site at www.graupner.de for full details
of batteries, chargers, measuring equipment and battery
monitor units.
Charging the receiver battery
The charge lead, Order No. 3021 , can be connected
directly to the NC receiver battery for charging. If the
battery is installed in a model and you have installed
one of the following switch harnesses: Order No.
3046 ,
3934 or 3934.1 or 3934.3 , the battery can be charged
via the separate charge socket, or the charge socket
which is built into the switch. The switch on the switch
harness must be left at the “OFF” posi-
tion for charging..
General notes on battery charging
Observe the recommendations provided by the •
charger manufacturer and the battery manufacturer
at all times.
Keep to the maximum permissible charge current
•
stated by the battery manufacturer.
The maximum charge current for the transmitter
•
battery is 1.5 A. Limit the charge current to this value
on the charger.
If you wish to charge the transmitter battery at a
•
current higher than 1.5 A, you must fi rst remove the
pack from the transmitter, otherwise you risk damag-
ing the circuit board through overloading the conduc-
tor tracks, and / or overheating the battery.
Carry out a series of test charges to ensure that the
•
automatic charge termination circuit works correctly
with your battery. This applies in particular if you are
using an automatic charger designed for NiCd batter-
ies to recharge the standard NiMH battery.
You may need to adjust the Delta Peak trigger volt-
•
age, if your charger provides this option.
Do not discharge the battery or carry out a battery
•
maintenance program via the integral charge socket.
The charge socket is not suitable for this application.
Always connect the charge lead to the charger fi rst,
•
and only then to the transmitter or receiver battery.
Observing this rule eliminates the danger of acciden-
tal short-circuits between the bare contacts of the
charge lead plugs.
If the battery becomes hot when on charge, it is time
•
to check the pack’s condition. Replace it if necessary,
or reduce the charge current.
Never leave batteries unsupervised when on •
charge.
Disposing of dry cells and rechargeable batteries
Never dispose of exhausted batteries in the household
refuse. As end-user you are legally required (by the “Bat-
tery Regulation”) to return old and exhausted batteries.
They should and must be taken to your local toxic waste
collection point so that the materials can be re-used or
re-cycled. Alternatively they can also be returned to any
retail outlet where batteries are sold.
Polarity of receiver battery connector
Recommended battery chargers (optional acces-
sories)
Order
No.
Description
220
V mains conn.
12
V DC connect.
Suitable for
the following
battery types
Integ
ral charge
. lead
NC NiMH LiP
o
Lead-ac.
6409 Ultramat 6 x x x x x
6410
Ultramat 10 x x x x x
6411 Ultramat 8 x x x x x
6412 Ultramat 12 x x x x x
6414 Ultramat 14 x x x x x
6419 Ultramat 5 x x x
6427 Multilader 3 x x x x
6442 Ultramat 17 x x x x x x
6444 Ultra Duo Plus 50 x x x x x x
6455 Multilader 7E x x x x
To recharge the
mx
-16iFS system you will also need the transmitter
charge lead, Order No. 3022 , and the receiver battery charge lead,
Order No. 3021 , unless stated otherwise in the table.
Please refer to the main GRAUPNER FS catalogue or visit the Internet
site at www.graupner.de for the full range of chargers, and details of
those listed above.