SPS-XL - Emcotec

° If the SPS XL is operated in connection with a LiPo saver without
any galvanic isolation (which isolates the circuitry of battery and
receiver by optical couplers) the SPS XL does not function. In
this case the motor controller gets its ground signal from the
minus pole of the LiPo saver and perhaps damaging it.
° The total cable length between the electric motor and the battery
(including SPS XL) should be as short as possible!
SPS-XL
The connections are arranged twice, i.e. the plus and minus pole
2
possess two thick 8 mm (AWG 9) connection cables each. Because
usually two batteries are operated in parallel for high currents, each
battery is provided its own connection.
16mm
At the output of the SPS XL there are also two cables for plus and minus
available. Powerful motor controllers usually possess two connection
cables.
° CAUTION: The anti flash protection of the SPS XL does not refer
to the pre-charging of the capacitor in the motor controller! If a
manufacturer demands pre-charging of the capacitor, the SPS XL
can not be utilized under these circumstances.
The SPS XL can be switched by the external switch actuator or
by a free channel of the receiver by radio control. A combination
of both switches (external gas cap switch actuator and radio) is
possible, too. Switching thresholds of the radio channel are freely
programmable.
Properties of the SPS XL
Of course, the load circuit of the SPS XL is separated from the
receiver circuitry by optically (galvanic) couplers.
The EMCOTEC SPS XL serves as protection against undesired motion
of an electric motor and inhibits generation of forceful lightning (sparks)
when connecting the driving battery.
In cooperation with the DLR (Deutsche Luft- und Raumfahrtgesellschaft)
the most powerful safety switch for drones and aircrafts was developed
which can be operated in the voltage range from 12 up to 70 volts.
Therefore up to 16S LiPo batteries can be utilized.
The SPS XL is installed in between the driving battery and the motor
controller and interrupts the current flow from the battery. The
interruption is accomplished by electronically interrupting the minus
pole of the battery to the motor controller.
180A / 360A
Safety Instructions
° The SPS XL can be operated with high DC voltages up to
70 volts. This voltage can be life threatening! Never touch
the blank connector pins of the battery and absolutely don't
come in contact with the high voltage!
The maximum possible continuous current is 180 amps, peak currents
up to 360 amps are of no problem. Power dissipation of the SPS XL
is extremely low thanks to most modern parts and a high grade
multilayer PCB with a high rate of copper. The thick dual arranged
2
connector cables with 8 mm (AWG 9) cross section allow for unimagined switching power.
Connection for
motor controller:
(Plus at the top
minus bottom)
Connector for
the receiver
(slot at the top)
Operating the SPS XL
Switching by the SPS XL (turning on/off) is either done by radio with a
free receiver channel and/or by an external switch actuator which e.g.
is mounted into the fuselage's side wall.
Connection for
motor controller:
(Plus at the top
minus bottom)
° Please implicitly observe the safety precautions of the built
in components like electric motors, motor controllers and
batteries as well.
2.2mm screws
SPS XL radio control switch
SafetyPowerSwitch
Electronic safety switch with
anti flash protection for RC models
21mm
Mounting flange
The flange is
illuminated whenever
the SPS XL is on (and
a battery is connected)!
Switching by the external switch
actuator is accomplished by a
magnet which sits in the funnel
shaped opening of the switch
actuator when idle (SPS XL off).
Hint: The gas cap switch actuator of the SPS XL can be removed
if the SPS XL will be operated exclusively by radio control.
Switching is then only possible by radio. The external switch
actuator may also remain connected to the SPS XL. In this case
it always has highest priority. This means: If the magnet is put into
the gas cap switch actuator, the SPS XL remains turned off, even
if actually turned on by radio control. The external switch actuator
serves as additional safety feature. Only if it is turned on, the RC
set is functioning.
The connection between receiver and SPS XL is done by a patch
cable (included in delivery). The patch cable can be easily
extended by a regular servo extension cable.
In order to activate or deactivate the function of the radio control
switch, a "pin" switch is integrated into the housing of the SPS XL.
The pin must be put into the corresponding socket (Receiver
"Ena." = enabled = active or "Disa." = disabled = inactive) in order
to release or lock the radio control switch.
Pin for remote control activation
° The SPS XL must be only used in radio controlled models
or drones (UAV). Usage in manned flight systems is explicitly
forbidden!
Remote control switch
active (enabled)
° The SPS XL is not protected against reverse polarity! Always
observe correct polarity of the batteries.
° Protect the SPS XL against humidity. In case it got wet, send
it to EMCOTEC or the corresponding service point for
inspection!
The magnet sits tight through magnetically pull. A slight pull at the
magnet (or key ring) removes it out of the opening and the SPS XL
turns on. An ultra bright green LED (illuminated ring) indicates the
activated system.
° Never turn off the SPS XL when the motor is running (neither
by radio nor by switch actuator). Here, the motor controller
and perhaps the driving motor will be damaged.
The external switch actuator is shaped like a gas cap. For mounting
(e.g. in the fuselage's side wall) drill a hole of 16mm/0.63". CAUTION:
mounting depth of the magnetically switch actuator is 35mm/1.38"!
Therefore, the fuselage must be deep enough at this position.
° If the SPS XL is operated by radio, in this case, the receiver
can generate servopulses which cause short switching of
the SPS XL. Ask the manufacturer of your radio. This case
is extremely unlikely, but possible in theory. In connection
with the external gas cap switch actuator, this case is not
critical.
The funnel shaped switch actuator is now fed through the hole and 6
drill holes (circle 21mm/0.083") for mounting by screws are marked and
drilled. Put the screwing flange over the connection cable of the magnetically switch actuator from the inside of the fuselage and screw in the
6 screws.
Connection
of battery:
(Plus at the top
minus bottom)
Connector for the
external switch
transmitter
(bottom slot)
Connection
of battery:
(Plus at thetop
minus bottom)
Remote control switch
inactive (disabled)
Caution: If the radio control switch is released, the SPS XL is not
turned off by just the external gas cap switch actuator! In any case
a valid servo signal must be available which serves the RC switch.
Programming
Programming of the RC radio control switch which is integrated
into the SPS XL is started by the delivered jumper. This jumper
bridges the contacts "PROG".
SPS XL technical data
SPS XL indicators
The SPS XL has a built in control LED "Receiver Status". This LED is
only functioning if the SPS XL is connected to a receiver (RC switch).
integrated
red LED
Programming the SPS XL
LED off:
The radio control switch turns the SPS XL off
or the receiver set is turned off.
Programming of the SPS XL is possible within the first 10 seconds
after power on. Afterwards, this function is locked for safety
reasons! If a gas cap switch actuator is connected, the switching
magnet should be inserted in order to avoid an undesired motion
of the motor.
LED is lit continuously:
The radio control switch turns the SPS XL on. Only if the external gas
cap switch actuator is activated (or removed) the SPS XL really turns on.
Caution: In any case programming should be done without a motor
connected or at least executed with great care so that turning the
SPS XL on does not cause damage by a running motor!
Programming WITHOUT a connected battery is also possible
and safe!
Illuminated ring in external switch actuator (gas cap switch actuator):
As soon as the SPS XL is turned on and current can flow from the
battery to the motor controller, the ring in the gas cap switch actuator
is lit. The illuminated ring of the gas cap switch actuator gets its energy
directly from the switched battery. An
illuminated ring means voltage at the
motor controller!
Programming the switch-on position
• Bring switch to be used (actuator) at transmitter in desired turnon position (SPS XL "On")
• Turn radio on (transmitter, receiver set)
• Place jumper onto pins in socket "PROG": LED "Receiver Status"
is now on continuously and switch position is stored.
• If the external LED is connected, it is lit as well. If no external
switch actuator is connected or the magnet is removed from the
connected switch actuator, the SPS XL is turned on.
• Bring switch at transmitter in off-position. Pull jumper from socket
"PROG": the LED "Receiver Status" (and the external LED)
extinguish after about 1 second. The SPS XL is turned off and
the power off position is stored.
• If failsafe deactivation should be programmed the jumper must
be reinserted within the next 5 seconds into socket "PROG" for
a short period of time (about 1-2 seconds). If no failsafe
deactivation programming is desired, the programming mode
ends after 5 seconds and a reset is executed.
If the radio control switch is turned off, the LED flashes (with very short
on-cycles) continuously. This points to a powered receiver and correct
received servo signals and indicates the functioning. When the radio
control switch is turned on, the internal LED is turned on steadily. Now,
the SPS XL is released.
If both LEDs are lit, the SPS XL is
turned on. When the external LED is
on and the ring in the external switch
is off, the radio control switch is on,
but the external switch is off (or no
battery is connected).
The internal LED also blinks when the servo signal is interrupted or
invalid (wrong pulse length or wrong pulse distances). This indicates
a failsafe situation.
SPS XL overview
Hint: Of course, other consumers than a motor controller with an electric
motor can be connected to the SPS XL. The SPS XL can be used for
switching headlights or for turning on motors with brushes without a
motor controller.
In case of receiver break-downs or disturbances the pilot usually
tries to get the model out of the dangerous area – i.e. airspace as
soon as possible. Therefore, UAV customers demand power off
of the motor even if this destroys the motor or the ESC (motor
controller).
Current from receiver
Electrical isolation
Cable length
Cable cross-section
Dimensions housing
Dimensions ground plate
Mounting grid (for screws)
Weight
Warranty
approx. 16mA with external
switch transmitter
Signal level from 2,0V - 6V
Servoposition -200% up to +200%
max. 15mA with ext. LED
with Optocoupler
approx. 70mm (8 wires)
8mm2 (AWG9)
82.4mm x 62.4mm x 26.5mm
104.3mm x 71.0mm
94.0mm x 60.0mm (for M4 srews)
approx. 195 gram (6.88 oz.)
24 month
* Contrary to the general grandstand, „continuous current“ means not only for the
discharge time of a e.g. 5Ah battery but means continuous on linguistic grounds.
Certainly such a high continuous current will not be reached within RC modeling.
Conformity Declaration
EMCOTEC GmbH hereby declares that this product satisfies
the fundamental requirements and other relevant regulations
contained in the appropriate EU directives. The original Conformity Declaration can be viewed on the Internet under
http://shop.emcotec.com: click on the logo button marked
“Conform” which is included in each device description.
It is illegal to dispose of electronic equipment in the ordinary
household waste: that is the meaning of the symbol printed
alongside. It simply means that you must dispose of electrical
and electronic equipment separately from the general household
waste when it reaches the end of its useful life. Take your unit to
your local specialist waste collection point or recycling centre.
This applies to all countries of the European Union, and to other
European countries with a separate waste collection system.
Internal LED for the
receiver status
Connection(1) for the
ESC motor controller
plus at the top - minus bottom
Explanations for failsafe deactivation
Caution: If the SPS XL is turned off or deactivated while the motor
is running, this can lead to a destroyed motor controller and/or
motor!
Quiescent current
(Off-state)
Current consumption
(On-state)
Servopulse recognition
12V - 70V (up to 16S LiPo)
180A cont. current*
360A peak current
350µA
Disposal of Devices
If the jumper was inserted into the "PROG" socket within 5 seconds
after programming the switch position, failsafe deactivation is activated. This means: If during operation servo signals are missing
from the receiver or are sampled erroneously, the SPS XL is turned
off automatically.
A failsafe situation is encountered as soon as servo signals from
the receiver are missing or received with errors. The SPS XL is
then turned off for safety and the voltage from the battery to the
motor controller is interrupted. The SPS XL remains deactivated
until the receiver is turned off and then turned on again.
Input voltage
Current carrying capacity
It is different with the external LED:
it only indicates the state of the RC
switch. The final release is done by
the gas cap switch actuator if
connected.
If the internal LED flashes quickly (2.5 times a second) an error is
encountered, e.g. if the receiver set is turned on and the switch at
the transmitter is in "ON" position. In this case, the RC switch is locked.
Only if the switch is in "OFF" position, the blinking stops and the RC
in the SPS XL is released.
After finishing programming the LED "Receiver Status" flashes
(very short on-periode). This flashing indicates a connected and
powered radio control. The SPS XL is turned off. If the SPS XL is
turned on by radio the internal LED is on continuously.
Programming failsafe deactivation
Delivery includes an (external) 5mm LED which can be connected to
the "LED" connector. Caution: observe polarity: plug the black marked
cable to minus (-). The LED can be mounted into the fuselage's sidewall
using the plastic bracket. The LED indicates the state of the radio control
switch in the SPS XL.
Connection of battery (1)
plus at the top - minus bottom
Servo connector from RX (at the top)
Connector for external LED
Connector for the switch transmitter
Programming socket
Connection(2) for the
ESC motor controller
plus at the top - minus bottom
Connection of battery (2)
plus at the top - minus bottom
Pin switch for remote control activation
(release of the rc switch)
EMCOTEC GmbH
( 08234 / 95 98 95 0
Waldstr. 21
7 08234 / 95 98 95 9
D - 86517 Wehringen . [email protected]
http://shop.rc-electronic.com
We accept no liability for errors and
technical modifications. Copyright ©
EMCOTEC GmbH 2011. This information may not be copied or reproduced in whole or in part without the
prior written approval of EMCOTEC.
Made in Germany
Anleitung_SPS_XL_EN - Version 1.0 - March 2011