Download TVC-S-30(ELW) 3A Dual electronic speed controller for RC tanks in

TVC-S-30 (ELW)
3A Dual electronic speed controller for RC tanks
in 1/35th to 1/16th scale
The electronic speed control(ESC) will operate two direct current motors
in a tracked vehicle. The integrated mixer slows the inside track to a full
stop. Deflection of the stick while stopped causes the vehicle to pivot
steer.
The “ELW“ Variant is tuned to higher quality motors and offers a lower
“on” point. The ESC starts at 5% of battery voltage instead of the usual
20%.
The ESC is typically used in a model with a maximum power
consumption of 25 watts or less.
instructions for TVC-S-30-GAM.doc
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Installation:
Connection of battery, receiver and motor:
The drive motor wires are attached to the black terminal plug. The plug
is attached to the speed control The motors must be properly radiointerference-suppressed (install capacitors if required). Please ensure
the motors are rated for the voltage of the batteries connected. The
battery supply is attached to the green terminal plug and connected.
Observe the correct polarity of the battery terminals (+ is at the
outside edge of the circuit board).A 10A fuse protects The ESC.
Install a switch in the battery supply circuit to turn off the model.
Connector shown with polarity
The ESC is not protected against reverse polarity!
instructions for TVC-S-30-GAM.doc
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1 servo cable is for steering, 2nd cable is for throttle. The speed input is
marked with three black lines on the cable.
The ESC operates from 5V to 12V. The BEC starts operation at 6.5V.
Below 6.5V the BEC is not operational.
Cooling:
The ESC is insulated with a heat shrink sleeve. Good airflow should be
maintained around the unit to prevent overheating. Do not remove the
insulating sleeve!
Initialization:
Connect the battery
Turn on the module
Turn on the transmitter
All control sticks and trims must be centered
Turn on the receiver. The LED lights for approximately 1 second
The ESC senses the center point of the channels and the LED on the
board flashes. If the unit is not successful turn the receiver off and on
again.
If the LED lights the model is ready for operation. This process is
repeated at every start. The start position of steering and throttle are set
at center.
-
Motor rotation correction
Depending on the mechanical arrangement of the motors the direction of
rotation may need to change. In Tamiya and Academy models the motor shafts
are installed opposite to 1 another. In these models the polarity of 1 motor is
reversed in order to travel straight. The direction of travel correction can be
made using the servo reverse switches of the transmitter. If this is not
possible please follow this procedure:
- If the model steers when forward or reverse is applied: Exchange
connections at both motors (motor 1 to motor 2 and vice versa)
- If the models steering is reversed(stick left – model right: Exchange
connections at both motors and reverse polarity of each motor.
- The steering is centered and the model does not drive straight: Correct
with steering trim.
instructions for TVC-S-30-GAM.doc
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Practical tips:
models with less than 6.5 V:
for smaller models voltages lower than 6.5V may be desirable. Then the
receiver and the drive motors are fed directly from the same battery.
This means the BEC is not active anymore. The lower operating voltage
is then no more 6.5V but 4.5V. The maximum voltage in this case is 6V.
The motors must be electrically isolated from each other. (this is always
the case with Tamiya models.) you can verify this with a continuity tester
or electrical meter. In practice
- Windshield wiper motor. Some models use the chassis as a return
conductor. If the motors are attached to a metal chassis they are
electrically connected. You must isolate the motors from each other
with a plastic plate.
- Some motors have integrated capacitors which connect the motor can
with motor terminals. These are not detectable with a meter. Isolating
these motors is appropriate.
- Kits with cable control often share a conductor to save a wire to the
remote. This is not appropriate for electronic speed controls.
Separate the conductors in the model.
Technical Data:
nominal-motor current
voltage range (with BEC)
Voltage range (without BEC)
BEC current
3.5 amps per motor
6.5 to 12V
5 to 12 v
300mA
PWM frequency
typical maximum power output
typical voltage drop in output stage
dimensions
software version
2kHz
4 watt
1.5 volt
55x28x13mm
01.02.06
Important!
instructions for TVC-S-30-GAM.doc
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This equipment described above has been tested and inspected for
quality and function. It is intended for installation and use only as
described above. This equipment does not contain any user serviceable
parts. The supplier accepts no responsibility, financial or otherwise, for
damages caused by use or misuse of the equipment described above.
The equipment must be protected from exposure to water to prevent
short circuit. Do not open the equipment or attempt to change function,
wiring, or documentation in any way. Do not connect to incorrect voltage
or reverse the battery polarity. Do not use in a careless or abusive
fashion around persons or property. Do not attempt to repair. Any
legitimate use, e.g. Installation in a model makes the user responsible to
ensure that the operating instructions and non-liability agreement are
provided to the purchaser of the module described above
SGS electronic Dipl.-Ing. Rainer Stelzer
www.sgs-electronic.de
instructions for TVC-S-30-GAM.doc
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