4. SPECIFICATION
2. INSTALLATION TIPS
5. INSTALLATION
FORWARD/BRAKE
OVER 8 TURNS
RA00115
USER GUIDE
1. CONNECTIONS
© LRP electronic GmbH 2007
RECEIVER CONNECTING WIRE:
This LRP speed-control is equipped with a LRP Multicon receiver wire. As supplied, it will easily fit in
all ordinary receivers.
POWER WIRES:
The LRP IPC GEN series speed-controls come pre-wired using common „Tamiya-/JST style“
battery and motor connectors. Together with a motor and a pre-assembled battery-pack from LRPs
selection of motors and battery packs, the speed-control can be used instantly without the need of a
solder iron (please see section 5 „Installation“ for further reference).
You can also solder the power wires of the speed-control directly to the motor, if you do not want to
use the supplied plugs. Nevertheless some soldering skills are still required. However please note, that
your warranty may void if you cut-off the plugs. Therefore we recommend using the original power-
wires and plugs.
On/Off Switch
Motor - (Blue)
Receiver Connecting Wire
B (Red)
Motor + (Yellow)
Battery - (Black)
FET-Servo wire blue (only V5.1)
• Mount the speed-control using the supplied thick/black doubled-sided tape.
• Position the speed-control where it is protected in the event of a crash.
• Install the speed-control so that you have easy access to the connector and buttons.
• Make sure there is enough clearance (about 3cm) between the speed-control, power-wires, anten-
na and receiver. Avoid any direct contact between power components, the receiver or the antenna.
This can cause interference. If interference occurs, position the components at a different place in
the model.
• The aerial should be run vertically up and away from the receiver. Avoid contact with any parts
made of carbon fibre or metal. If the aerial is too long, don’t coil up the excess length. It is better to
cut it down to a length of about 35 cm. See also the instructions supplied with your radio control
system.
• Make sure there are enough cooling slits in the body. This will increase the performance and life of
all the electronic components.
HEATSINK:
The supplied heatsink improves and safeguards the perfor-
mance capacity of your LRP IPC GEN series speed-
control when used close to it‘s specified limits.
Use only the genuine LRP IPC GEN series heatsink.
Never allow the Forward transistors or their heatsink to touch
the brake transistor or its heatsink. This will result in a short
circuit!
3. SUPPRESSION
Motors with no capacitors or not enough
capacitors may interfere with the speed-
control. To avoid this, solder the supplied
capacitors to your motor (see picture).
The Schottky diode improves the efficiency of the speed-control/motor combination and provides extra
protection to the brake FETs. Solder the diode in place as shown in the illustration. The white ring must
always face the positive motor terminal.
Gen
(#83710)
(#83720)
(#83730)
Forward/Brake
Case Size
41x36x19mm
41x36x19mm
41x36x19mm
Weight (excl. wires)
23g
28g
28g
Voltage input
4-8 cells
(4.8-9.6V)
4-8 cells
(4.8-9.6V)
4-8 cells
(4.8-9.6V)
Typical Voltage Drop*
@20A - 0.053V
@20A - 0.027V
@20A - 0.012V
Rec. Motor Limit**
over 14 Turns
over 12 Turns
over 8 Turns
Rated Current*
180A
360A
480A
4, 5 and 6 cell optimised
yes
yes
yes
B.E.C.
5.0V
5.0V
5.0V
High Frequency
yes
yes
yes
Improved brake feel
yes
yes
yes
APC Adjustable Power Control
yes
yes
yes
Multi-Protection-System
yes
yes
yes
Standard Tamiya Style Connectors
yes
yes
yes
M
ab
uc
hi m
ot
or
Ra
ci
ng m
ot
or
Forward transistors
Brake transistor
Your LRP IPC GEN series speed-control comes pre-wired using common „Tamiya-/JST sty-
le“ battery and motor connectors. Be very careful with the correct wire sequence/colours since an
incorrect connection may damage the speed-control!
• Mount the speedo using the supplied thick/black doubled-sided tape.
• Connect the receiver connecting wire of the speed-control with the receiver (position: Channel 2).
• Connect the speed-control to the motor:
Yellow power-wire
Connect to motor „Plus“
Blue power-wire
Connect to motor „Minus“
CAUTION:
Be careful with the correct polarity!
• Doublecheck all connections before connecting the speed-control to a battery.
CAUTION:
If a battery is connected with reversed polarity it will destroy your speed-control!
• Red power-wire
Connect to battery „Plus“
• Black power-wire
Connect to battery „Minus“
• You can now switch on the speed-control with the On/Off switch.
• The speed-control is now ready to be set-up (please see section 6 „Radio/speed-control set-up“ for
further reference).
Note (only V5.1):
If your servo has an external FET connection, you have to connect it to the blue FET
servo wire of the speed-control.
LRP IPC V3.1 Gen speed-control
LRP IPC V4.1 Gen speed-control
LRP IPC V5.1 Gen speed-control
ORDER NO.:
83730
ORDER NO.:
83720
ORDER NO.:
83710
FORWARD/BRAKE
OVER 14 TURNS
FORWARD/BRAKE
OVER 12 TURNS
Wilhelm-Enssle-Str. 132-134
73630 Remshalden
Germany
www.LRP.cc
Dear customer,
thank you for your trust in this LRP product. By purchasing a LRP IPC GEN series speed-con-
trol, you have chosen a high-performance speed-control. These new speed-controls are based on the
World Champion technology of the legendary V7.1 control combined with the spirit of the new IPC V8.1
Gen. All speed controls have the original IPC technology adapted for street and fun racers. The
main features of this LRP IPC GEN series speed-control are:
• V5.1 / V4.1 / V3.1 Software
• Advanced Digital
• Power optimised
• Improved brake feel
• High Frequency
• APC Adjustable Power Control
• Optimised operation on 4 cells, w/o receiver battery • Plug in and drive
• Multi-Protection-System
• Limited Lifetime Warranty
Please read the following instructions to ensure, that your LRP IPC GEN series speed-control
always works up to your full satisfaction.
Please read and understand these instructions completely before you use this product! With
operating this product, you accept the LRP warranty terms.
* Transistors rating at 25°C junction temperature Specifications subject to change without notice.
** measured at 7.2V