AUDIO SOLUTIONS REMOTE AUDIO PLUS

DATA SHEET
AUDIO SOLUTIONS REMOTE AUDIO PLUS
MAIN FEATURES
IR CONTROLLED MOTOR DRIVER KIT FOR ELMA’S TYPE A4, A47 AND 04 SWITCHES
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IR remote controlled with IR teach-in function
Adjustable to different switch types
Push button and host control remote options
Relay mute function
Zero EMI emission when not actuated
Switch feel virtually not affected by motor
(LIN motor option)
REMOTE AUDIO PLUS
11/65/EU)
POSSIBLE CUSTOMIZATIONS
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APPLICATIONS
Software design (including I/Os, I2C, SPI or async
interfacing)
RF vs. IR remote control option (on-board UHF
module)
Motor options, including DC motors
Adaptors for other supplier’s switches
REMOTE AUDIO PLUS (WITH LIN-Motor)
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High-end audio & Pro audio
Industrial controls
STANDARD VERSION (WITH A 2-WAFER SWITCH)
KIT CONTENT
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Switch and IR remote unit are not included
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DATA SHEET
AUDIO SOLUTIONS REMOTE AUDIO PLUS
DIMENSIONS [in mm, unless otherwise stated]
CONTROL MODULE (pin allocation, operating controls and LED)
RELAY FUNCTION
IR RECEIVER
SPECIFICATIONS
CONTROL MODULE
Operating voltage:
8 to 15 VDC (12 VDC nominal)
Current consumption:
Standard motor; 1.2 A peak1 max., LIN motor; 2.4 A peak1 max. (at 12 VDC and max. torque)
20 mA stand-by max. (at 12 VDC, no motor operation, without display module)
5 VDC output:
Regulated, 100 mA load max.
Switch torque capacity:
Standard motor; 6 Ncm max., LIN motor; 10 Ncm max. (limitable by trim pot, at 12 VDC)
Indexing resolution:
12, 24 or 48 (47) positions
SER interface:
Single pulse PPM (low-active); up; 500 μs, down; 1 ms, mute on; 2 ms, mute off; 4 ms (all +/- 20%)
Single pulse PPM (low-active); “up”; 500 μs, “down”; 1 ms, “mute on”; 2 ms, “mute off”; 4 ms (receiver
tolerance +/- 20%)
IR input:
NEC protocol (included IR receiver; Sharp, P/N GP1UX311QS)
IR REMOTE UNIT
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7 buttons; “up”, “down”, “left”, “right”, “center”, “menu”, “play/pause”. 38 kHz burst frequency, NEC protocol. Battery type: CR2032
1
Using a 6’800 μF input buffer capacitor will reduce the peak current requirement to approx. 50%
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DATA SHEET
AUDIO SOLUTIONS REMOTE AUDIO PLUS
ASSEMBLING THE KIT
1. Mount the two 30 mm stand-offs to the stepper motor using the two set screws
(do not tighten the set screws).
2. Feed the switch drive linkage onto the shaft of the stepper motor (do not tighten).
3. Assemble the stepper motor with its stand-offs and the linkage onto the control module
using the two M3 screws (be careful when feeding the linkage thru the position sensor in
the middle of the control module).
4. Twist together the stepper motor’s wires (blue with red, green with black) and solder
them to the control module (see pin allocation).
5. Mount the assembled motor unit onto the rotary switch using the two M2 screws and
the spacers (replacing the original M2 screws at the rear end of the switch).
6. Position the linkage to the switch and firmly tighten the set screw of the linkage.
7. Mount the switch/motor unit into your equipment and connect IR remote cables and
12 VDC power supply to the unit (see pin allocation).
8. Adjust the trim pot to max. position, follow the below setup procedure and finally adjust
the trim pot to the minimum torque level needed.
SETUP BY DIP SWITCH
Switch#
Switch#
Switch#
Switch#
1 - 12 / 24 pos; select between 12 or 24 positions
2 - 12/24 / 48 (47) pos; select between 12/24 or 48 positions
(if 48 pos is selected, switch # 1 is overridden)
3 - Std mot. / LIN mot.; select the corresponding stepper motor type in use
4 - Slow / Fast; chose either slow or fast switching speed
END-STOP CALIBRATION AND IR TEACH-IN USING THE TACT SWITCH
left
up
mute
right
1. Push the tact switch until the LED flashes for approx. 1 sec.
2. Turn the switch to the fully right position and quickly push the tact switch.
The LED flashes for approx. 300 msec. for confirmation.
3. Turn the switch to the fully left position and quickly/long push the tact switch.
Quick push; the LED flashes for approx. 300 msec. for confirmation.
Long push; jumping to # 5 (used when no IR receiver connected, e.g. in slave
mode).
4. Quickly operate the buttons on the IR remote unit in the exact sequence of
“up”, “down”, “mute”, “left” and “right”.
5. End of procedure (the LED bursts for approx. 1 sec.).
down
IMPORTANT
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Avoid fluorescent light exposure during teach-in.
If the teach-in process fails, repeat it after briefly disconnect the unit from power.
IR remotes output unique codes; they only work with the originally-paired unit.
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DATA SHEET
AUDIO SOLUTIONS REMOTE AUDIO PLUS
APPLICATION EXAMPLES
#1 - CLASSIC SINGLE UNIT OPERATION
The classic mode of operation incorporates a single unit
that is either manually or IR controlled. The versatile control
module can be adjusted to individual endstop positions,
switch resolutions and operating speeds. Any type of NEC
compliant IR protocol can be used and “taught in”.
The power requirements are 12 VDC nominal at 1.2 A
(2.4 A with LIN motor) peak current (see specifications).
The supplied IR receiver can be directly connected to
the control module using an unshielded 3-wire cable
with maximum length of 300 mm. Assembling and setup
needs to be done as described above. An IR controllable
on-board audio mute relay may optionally be wired in the
audio path as indicated under pin allocation.
12 VDC power
+12 GND
RAPLUS
Max. 300 mm
IR
IR in
GND
Vcc
#2 - MASTER/SLAVE OPERATION (BALANCE CONTROL)
When using two units in a balance configuration, left and
right channels are attenuated with two independent units,
with two independent switches. Connect the units in the
master/slave configuration as shown. When operating
the balance function using the IR remote, the two units
will switch alternately in order to minimize the balance
step size. The balance function needs to be enabled by
activating the solder jumper (see picture) of the PC board
of the control unit. The teach-in procedure has to be
applied to both, master and slave units, whereas for slave
unit the IR teach-in procedure is obsolete.
12 VDC power
Keep GND wire short, use >= 0.25 mm 2 (AWG23)
+12 GND
Max. 300 mm
IR
+12 GND
RAPLUS
Master unit
IR in
(left)
GND
Vcc
RAPLUS
Slave unit
(right)
SER
SER
Max. 300 mm
Activate soldering jumper
at master unit!
#3 - TWIN UNIT OPERATION (VOLUME & INPUT SELECTION)
For both volume and input source selection two
independent RAPLUS units can be used, wired to the same
IR receiver. The volume control unit is set up as described
under # 1 above, whereas the 2nd unit controlling the input
selection will be taught in with the same IR control but using
left and right buttons instead of up and down (the teach-in
sequence follows the order of “right”, “left”, “center”, “up”,
“down”).
Keep GND wire short, use >= 0.25 mm 2 (AWG23)
+12 GND
Max. 300 mm
IR
RAPLUS
Volume
IR in
GND
Vcc
+12 GND
RAPLUS
Input selector
IR in
GND
Vcc
Max. 300 mm
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DATA SHEET
AUDIO SOLUTIONS REMOTE AUDIO PLUS
APPLICATION EXAMPLES
#4 - PUSH BUTTON CONTROL AND DISPLAY OPERATION
The unit can also be controlled by separate up and down
12 VDC power
buttons instead of turning the rotary switch manually. This way
the assembled RAPLUS/switch combination does not need to be
Up
attached to the front panel, but can be placed anywhere in the
Down
chassis and operated in a completely wired mode. For
+12 GND
PB up
PB down
RAPLUS
level indication, Elma’s Display Module is available as an
Max. 300 mm
accessory. The Display Module is a two-digit white LED board
IR
that can easily be connected to the RAPLUS control module using
Display
module
IR in
GND
Vcc
an FFC cable. Please refer to the corresponding data sheet for
instructions.
When using the display module the unit should not be operated
manually as there is no switch position sensor available that
keeps the display module on track.
#5 - HOST SYSTEM CONTROL
12 VDC power
Instead of using direct push button controls the unit may be
+12 GND
remotely controlled by a host system, either by connecting the
host system to the push button inputs (“up” and “down”), or by
the SER interface for controlling “up”, “down” and “mute” (see
RAPLUS
specifications for the PPM pulse width coding). Level indication
can be provided using the Display Module or directly by the host
systems own display solution.
GND SER
Host
5V logic
Max. 300 mm
ORDERING CODE
Remote Audio PLUS: RAPLUS
Remote Audio PLUS (with LIN2 motor): RAPLUS-LIN
IR remote unit: IRREMOTE
2
Standard motor (spare part): STEPMOT1
LIN motor (spare part): STEPMOT2
Control module (spare part): RAMOD
IR receiver (spare part): IRRX
The LIN motor virtually does not affect the switch feel due to very little indexing and a high resolution of 400 vs. 200 steps
(standard motor).
Furthermore the LIN provides a substantially higher torque capacity at a correspondingly higher current requirement (see spec).
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