Planning | Bo Edin AB
Univox Loop Designer
Installation Guide for Univox models including: PLS-7, SLS-7, 7-Series High Efficiency Linear Technology, High Efficiency Linear Technology, Efficiency Linear Technology, Linear Technology, PLS-7D, SLS-7D
Installation uide Univox 7-Series High Efficiency Linear Technology Univox PLS-7 Univox SLS-7 Univox PLS-7D Univox SLS-7D part no 217700 part no 227000 part no 217710 part no 227010
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DocumentDocumentUnivox® 7-Series High Efficiency Linear Technology Installation Guide Univox® PLS-7 Univox® SLS-7 Univox® PLS-7D Univox® SLS-7D part no 217700 part no 227000 part no 217710 part no 227010 Contents Introduction 3 Univox® 7-series 3 SLS system 3 Connections and controls 4 Overview PLS-74-5 Overview SLS-7 6-7 Description 8 Installation 10 Planning 10 Tools required10 Loop cable 10 Placement of the driver 10 Placement of the microphones11 Commissioning and certification11 Maximum recommended segment size (to comply with IEC 60118-4) 11 System setup 12 Start-up procedure12 Input connection and adjustments 12 Output connection and adjustments 13 Metal Loss Correction frequency setting 14 Troubleshooting 15 Safety 17 Warranty 17 Maintenance and care18 Service 18 Technical data 18 Environment 18 Measuring devices18 Univox® FSM Basic, Field Strength Meter18 Univox® Listener, testing device18 Technical data PLS-7/SLS-7 19 2 Introduction Univox® 7-Series Univox® 7-Series drivers combine 50 years of experience with the newest electronic design to deliver unrivalled quality in a compact stylish housing Developed on Univox linear switching technology the 7-Series provide extraordinary sound clarity, power and performance as well as outstanding features such as low weight, size, and exceptionally high efficiency Overall performance with the high voltage available follows the latest demands of the IEC 60118-4 and IEC 60498-1 standards, giving high quality sound for music as well as for speech Univox PLS-7 and its phased array sibling SLS-7 are powerful induction loop amplifiers designed for very large-area loop installations PLS-7 delivers up to 100 Vpp/20Arms while the SLS-7 drives up to 100 Vpp and 10 Arms per channel With wide dynamic response from complementary balanced outputs, PLS/SLS-7 drivers provide excellent dynamics with top audio quality Our ground-breaking filter bank eliminates any Class-D associated non-linearity or interference Due to Class D low heat dissipation, the drivers claim no extra ventilation space in your AV-rack SLS system SLS system is based on overlapping loops, providing a more controlled field strength distribution with less overspill Any size venue can be covered and transmission secured in several directions The mute effect that occurs when a hearing aid wearer is tilting their head, common for standard loop systems, is efficiently eliminated Detailed information about SLS design, with several different approaches and visualized in 3-D simulation for a comprehensive understanding, can be accessed in Univox Loop Designer (ULD) Included in package · Loop driver · DC Power Supply · Power cable · 3 pcs of phoenix screw terminals · 4 pcs of rubber feet (preassembled) · T-Sign according to ETSI-standard · Rack mounting plate with 8 screws · Certificate/Measuring protocol · Installation guide 3 Connections and controls PLS-7 Overview 1 1 1 3 6 2 4 5 7 1 Input level potentiometers 2 Input level LED bar graph 3 Parametric MLC control 4 Parametric MLC knee point switch 5 System diagnostics switch and LED 13 14 8 9 10 11 13 DC supply input 14 Loop connector 15 Monitor volume control for both headphones and speaker output 16 Connection to Dante-interface (Univox® PLS-7D, part no 217710) A. MISCELLANEOUS OUTPUTS 17 Monitor speaker connector 18 Auxiliary DC power output 19 Loop fault connector B. INPUT 3 20 Phoenix screw terminal (Unbalanced) 21 Unbalanced RCA 4 6 Loop current potentiometer 7 Loop current LED bar graph 8 Peak LED 9 Temp LED 10 Loop fault LED 11 Loop monitor headphones socket 12 Power LED 15 A B 12 C 16 D 17 18 19 20 21 23 25 27 22 24 26 28 C. INPUT 2 22 Speech enhancement switch (Flat/Speech) 23 50-100 V Line switches On/Off 24 Override switch On/Off 25 Phoenix screw terminal (Balanced) D. INPUT 1 26 Speech enhancement switch (Flat/Speech) 27 Line/Mic sensitivity switches 28 Phantom power voltage switch On/Off 29 Balanced XLR 29 + ··· T _ 5 Connections and controls SLS-7 Overview 1 1 1 3 6 2 4 5 7 1 Input level potentiometers 2 Input level LED bar graph 3 Parametric MLC control 4 Parametric MLC knee point switch 5 System diagnostics switch and LED 13 14 8 9 10 11 13 DC supply input 14 Master/Slave loop connector 15 Monitor volume control for both headphones and speaker output 16 Connection to Dante-interface (Univox® SLS-7D, part no 227010) A. MISCELLANEOUS OUTPUTS 17 Monitor speaker connector 18 Auxiliary DC power output 19 Loop fault connector B. INPUT 3 20 Phoenix screw terminal (Unbalanced) 21 Unbalanced RCA 6 6 Loop current potentiometer master/slave 7 Loop current LED bar graphs 8 Peak LED Master/Slave 9 Temp LED 10 Loop fault LED 11 Loop monitor headphones socket 12 Power LED 15 A B C 16 12 D 17 18 19 20 21 23 25 27 22 24 26 28 C. INPUT 2 22 Speech enhancement switch (Flat/Speech) 23 50-100 V Line switches On/Off 24 Override switch On/Off 25 Phoenix screw terminal (Balanced) D. INPUT 1 26 Speech enhancement switch (Flat/Speech) 27 Line/Mic sensitivity switches 28 Phantom power voltage switch On/Off 29 Balanced XLR 29 + ··· T _ 7 Description 1-2 Input level should be set to 0 dB (ie the 0 dB LED should be lit most of the time during the audio programme The +12 dB LED indicator should not be lit at any time) 3-4 Parametric MLC control makes it possible to fine tune the frequency response, compensating for the effects of different metal types and configurations There are 4 parametric curves starting from; 2 kHz, 1 kHz, 500 Hz and 100 Hz These set the frequency at which the metal loss correction control starts to compensate The function is powerful, however excessive compensation can lead to signal limiting in the treble range If signal limiting occurs the red peak LED illuminates 5 System Diagnostics verifys the integrity and function of the loop driver - inputs, output and the loop condition Use: Set the switch on the front panel to right position A built-in 16 kHz signal pulses at 2 second intervals at 0 dB, regardless of the adjusted sensitivity If input and output LEDs flashes in unison, the loop driver functions are verified If only the input LEDs flashes it indicates that the loop is not connected or the current potentiometer needs to be readjusted Switch to left position Off, for normal use 6 The loop current control sets the output current, ie the field strength of the loop The combined Master/ Loop knob controls output current for both master and slave at the same time 7 Loop current LED bar graph indicates the level of the loop current, not the field strength The field The SLS version has two bars for master and slave The PLS version has one single bar Strength is measured using a Field Strength Meter, like Univox FSM 8 Peak (clip) LEDs illuminate when there is insufficient voltage to maintain a constant loop current Momentary short term voltage clipping is not audible in hearing aids Compensation from the parametric MLC control may increase the risk of clipping Note: Use ULD for simulation guidance before installation and commissioning 9 Temp LED, Automatic system protective mode activated Refer to Troubleshooting section 10 Loop Fault LED, remote output monitor connection; Relay output to a PA system Monitors the function of the system Refer to Troubleshooting section 11 Loop Monitor, supports headphone (10) and speaker outputs (14) representing the sound quality of the loop Volume control for both headphones and speakers, is set by the potentiometer (15) 12 Power LED verifies power supply connection 13 4 pin DC Supply socket for secure connection of Univox approved power supplies 90-260VAC, 50-60Hz Only connect the power to the amplifier before connecting to the network, otherwise there is a risk of sparking 14 Loop scew terminals (PLS) for Master and Slave loop connection (SLS) 15 Monitor volume control for both headphones and speaker output 16 Connection to Dante-interface (Univox® PLS-7D/SLS-7D part no 217710/227010) A. MISCELLANEOUS OUTPUTS PHOENIX SCREW TERMINAL (6 connectors/screws) 17 Monitor speaker connector Pin 1+2 (2=GND), speaker output 8-32 18 Auxiliary DC power output 15 V-24 V depending on model Pin 3+2 (2=GND), DC 12-18 V output, 100 mA 8 19 Loop Fault remote output monitor connection; Monitors the function of the system Whenever there is an inconsistency of the system a fault signal triggers relay contacts to: OPEN RELAY = FAULT CLOSED RELAY (short circuit) = OK B. INPUT 3 (PHOENIX SCREW TERMINAL/RCA) 20 Unbalanced Line: -24 dBu (30 mVrms) to +162 dBu (5 Vrms) 21 Unbalanced RCA left/right C. INPUT 2 (PHOENIX SCREW TERMINAL) Switchable between line and 50-100 V speaker line input Note: The speaker line MUST be balanced at the Phoenix connector (connect (+) and () terminal) Use earth ONLY for free-floating screen or leave unconnected 22 Speech filter: Low cut filter 130-170 Hz On/Off Speech Enhancement (Flat/Speech) attenuates low frequencies (<150 Hz) increasing speech intelligibility for microphone use Note: When commissioning field strength level and frequency response this feature must be switched to Flat postition 23 Speaker 50-100 V balanced Line, sensitivity On/Off Caution! 50-100 V/Line must be set prior to any further settings 24 Override/Priority function on In 2 mutes the signals connected to In 1 and/or In 3, is typically used when connecting evacuation alarm signal to In 2 25 Balanced Line: -15 dBu (50 mVrms) to +206 dBu (83 Vrms) D. INPUT 1 (BALANCED XLR) Balanced XLR Switchable between Line and Mic sensitivity and with or without Phantom voltage Note: With unbalanced connection (not recommended) the pin not used should be grounded 26 Speech filter: Low cut filter 130-170 Hz, On/Off Speech Enhancement (Flat/Speech) attenuates low frequencies (<150 Hz) increasing speech intelligibility for microphone use Note: When commissioning field strength level and frequency response this feature must be switched to Flat position 27 Line/Mic sensitivity switches: -55 dBu (15 mVrms) to +10 dBu (26 Vrms) 28 Phantom voltage, On/Off 29 Balanced XLR 9 Installation Planning Calculations for coverage area, metal loss, signal sources, power outlets, dissipating heat and ventilation for loop driver placement and other practical installation issues, must be done prior to the on-site installation Please refer to www.univox.eu/planning Use Univox Loop Designer (ULD), a free, web-based project planning and design software for easy and accurate assistance in designing loop systems www.univoxloopdesign.org Tools required Copper tape tools, eg crimping tool, double-sided adhesive tape, printed warning tape General audio installation tools, eg Ohmmeter Field strength meter, eg Univox FSM Listening device, eg Univox Listener Loop cable Always conduct a loop design before installation Use the same type of wire for the loop as specified in the design Use a feed cable (twisted or twin wire) between the junction box and the loop driver, as well as between the loop figuration and the junction box or loop driver Placement of the driver Univox SLS-7/PLS-7 loop drivers will not generate any excessive heat and can be mounted in 19" racks on top of or below other rack components (check that these doesn't generate excessive heat), on a wall or another flat surface In a rack system it is often practical to attach the external power supply on the supporting metallic construction using straps For wall mounting, you need to open the chassis to access the mounting holes Use general basic audio practice while installing and mounting units and wiring, including loop cable Avoid feedback interference between analog signal source cables and loop cable The loop cable must not be placed closer than 30cm (12in) to a parallel microphone or mixer cable Crossing is allowed 10 Placement of the microphones Microphone placement and proximity between microphone and mouth is crucial for improved speech intelligibility Use shortest distance possible between microphone and mouth/sound source Commissioning and certification Check the system when the installation is completed Properly installed systems should meet the requirements for field strength, consistency and frequency response according to the international standard IEC 60118-4 A guide on how to commission a loop system to the IEC performance standard, can be found in the user guide for the Univox FSM field strength meter and in the Univox® Certificate of Conformity avaliable at wwwunivoxeu/certify Maximum recommended segment size (to comply with IEC 60118-4) Metallic environment No metal Standard reinforced concrete Heavily reinforced concrete Suspended ceiling Steel deck/ Metal system floor Basic level (1000Hz) 22 m/70 ft 7 m/23 ft IEC level (1600Hz) 22 m/70 ft Field Strength Attenuation 0 5 m/16 ft 35-6 dB Important notes/requirements Increased current, voltage and power 5 m/16 ft 4 m/13 ft 35-6 dB 48 m/16 ft 36 m/12 ft 4-10 dB Increased current, voltage and power Conductor must be centered in the suspended ceiling framework (longest distance to metal) Increased current 4 m/13 ft 3 m/10 ft 6-10 dB Increased current Iron bar construction 3 m/10 ft 2 m/65 ft 4-12 dB Medium/strong damping, depending on placement of wire (avoid placement along metal bars) 11 System setup Start-up procedure 1 Each loop must be securely isolated (particularly to safety-ground and other loop connections) Verify the resistance of each loop (approximately 1-3 ) 2 Connect the input (21/25/29) and output (14) connections · SLS model: Connect Master and Slave loop cables. The Master loop cable connects to loop terminal screws 1 and 2 Slave loop connects to terminal screws 3 and 4 · PLS model: The loop cable connects to loop terminal screws 1 and 4 3 Set all level controls to minimum setting: · System Diagnostics (5) = Off · Parametric MLC (4) = 2 kHz 4 Connect the Power supply (13) and verify Power LED indication (12) 5 Activate System Diagnostics Input level bar graph peaks (2) to 0 dB Output bar graph (7) does not indicate NOTE: The Loop Fault LED (10) will be lit during this setup to verify the feature function SLS-model: If both Master and Slave loops are not connected the Loop Fault LED will be lit 6 Adjust the output level Input and output bar graphs indicate in unison Loop Fault LED will go out. NOTE: 2-turn loop is often more efficient, see the Output connections and adjustments section In some installations, field strength adjusted to -12 dB in coverage and frequency test measurement during commissioning, might trigger the Loop Fault LED due to low output current When adjusting current and magnetic field to 0 dB in further commissioning steps the Fault LED will go out 7 Check the field strength with a field strength meter, eg FSM for all loop segments Verify low field strength directly above wires and high in between segments (peaks to approximately -2 dB) If not, there might be a local short circuit between wires 8 Basic function of the loop system is now verified Turn System Diagnostics off and proceed with Input adjustments Input connection and adjustments 9 Set all level controls to minimum setting: · System Diagnostic (5) = Off · Parametric MLC (4) = 2 kHz 10 Connect the main audio source to the amplifiers input (B, C or D) 11 Adjust input level (1) to 0 dB at input bar graph (2). If using a 1 kHz pulsed sine wave signal, simply set to 0 dB 12 Output connection and adjustments 12 Field strength setting: Start with the highest efficiency connection, I) 2-turn serial connection For loop connection use a junction box, see the diagram below 13 Set field strength (6) in range -3 dB to 0 dB at the peaks If Peak (8) LED flickers occasionally the connection is acceptable If the Peak LED is lit continuously, try with following loop figurations by switching the connections in the junction box: II) one wire single turn and then III) two parallel wires single turn With this procedure the unit will operate with the highest output possible without generating any heat SLS-7 I) 2-turn serial connection Amplifier II) one wire single turn PLS-7 Amplifier III) two parallel wires single turn Junction Box 1 Junction Box 1 12 12 Loop wire 1-turn loop Loop wire 2-turn loop with dual core wire 13 Note: To quickly set up the field strength for a programme material, a PPM instrument, like the Univox Listener can be helpful The Univox Listener has a calibrated level indicator that quickly detects the highest peak Note: The field strength peaks should be adjusted to -2 dB field to suit dynamic headroom in various hearing aids 14 Check basic frequency response according to IEC 60118-4, using a field strength meter, eg FSM If necessary, follow Frequency adjustment procedure (see page 12) 15 Check the sound quality by using an external listening device (Univox Listener or FSM), Monitor speaker connector (17) or Monitor (11) for headphone (volume control on rear panel Monitor (15)) When operating at maximum output on low impedance, ie single turn loops, the automatic limit protection circuit may cut programme peaks This can be avoided by changing to a 2-turn loop or reduce the output current setting 16 Start the Commissioning process to certify the installation (see page 9) Metal Loss Correction frequency setting The degree of compensation for metal loss is adjusted with the MLC potentiometer (3) The start/break frequency is set with the Parametric MLC knee point switch (4) marked: 100 Hz, 500 Hz, 1 kHz, 2 kHz 1 Start with the break frequency set to 2 kHz 2 Adjust the level to -12 dB If this is not sufficient, move to the next lower frequency and repeat as required 3 Verify that the loop driver's voltage does not saturate, ie that the peak indicator (8) only flickers occasionally MLC function in maximum position 0 dB -5 dB -10 dB -15 dB 100 Hz 1 kHz 10 kHz 14 Troubleshooting Symptom General malfunction Possible cause Loop fault LED On Power LED is off Input and output LEDs flash on and off Temp LED On No input signal No output signal s Loop not connected properly Power supply not connected Power supply faulty System Diagnostics turned on Excessive heat Audio quality is poor, peak Input signal set too high LED is off, sound quality using headphone is also poor Audio source is of poor quality Solution Check the system with the start-up procedure See page 10 Check the input signal Both master and slave loop must be connected Check the loop connection Connect power supply correctly Replace power supply Turn System Diagnostics off Disconnect the supply voltage Verify the loop connection: Slave and Master loop must be insulated, must not be shortcircuited to safety ground Reconnect the supply voltage If the error signal remains, contact Univox support Reduce input signal level and check Line/Mic level setting Change/adjust audio source Audio quality is poor, peak LED indicates Malfunction loop cable Loop impedance is too high Loop current set too high Parametric MLC set too high Repeat start-up procedure (page 10) Change the loop: use twin cores in parallel or use a cable with larger cross-section Turn loop current down Turn down Parametric MLC Output current LEDs are Loop current turned down off, input LEDs are on Adjust Loop current Output and input LEDs No input signal are off, power LED is on Input signal set too low Check if input signal is present Adjust level of input signal Intelligibility of sound from microphone is poor Low frequency masking Poor microphone user techniques Turn the speech enhancement filter on Instruct user/reduce speaking distance 15 Troubleshooting Symptom Possible cause Microphone connected, Phantom power not turned on input LEDs are off Input level too low Microphone needs higher phantom voltage Microphone/LED/connectors faulty Alarm/priority signal is Override DIL switch not set to not clear allow this function Cannot achieve required Speech enhancement filter frequency response at turned on 100 Hz Solution Turn phantom power on Increase input level/reduce speaking distance Use valid microphone or connect a microphone mixer (amplifier) Exchange faulty part Set DIL switch to correct position Turn the speech enhancement filter off Cannot achieve required frequency response at 5 kHz Parametric MLC not set correctly Set Parametric MLC to correct level Frequency dependent losses too high for parametric compensation Use smaller/multiple loops 16 Safety The equipment should be installed by an audio visual technician observing 'good electrical and audio practice' at all times and following all the instructions within this document Only use the power adapter supplied with the unit If the power adapter or cable is damaged, replace with a genuine Univox part Power adapter must be connected to a mains outlet close to the amplifier and easily accessible Connect the power to the amplifier before connecting to the network, otherwise there is a risk of sparking The installer is responsible for installing the product in a way that may not cause risk of fire, electrical malfunctions or danger for the user Do not cover the power adapter or loop driver Only operate the unit in a well ventilated, dry environment Do not remove any covers as there is a risk of electric shock There are no user serviceable parts inside Refer servicing to qualified personnel Please observe that the product warranty does not include faults caused by tampering with the product, carelessness, incorrect connection/mounting or maintenance Bo Edin AB shall not be held responsible or liable for interference to radio or TV equipment, and/or to any direct, incidental or consequential damages or losses to any person or entity, if the equipment has been installed by unqualified personnel and/or if installation instructions stated in the product Installation Guide have not been strictly followed Warranty This loop driver is supplied with a 5-year (return to base) warranty Misuse of the product in any way including but not limited to: · Incorrect installation · Connection to non-approved power adapter · Self oscillation resulting from feedback · Force majeure eg lightning strike · Ingress of liquid · Mechanical impact will invalidate the warranty 17 Maintenance and care Under normal circumstances the product does not need any special maintenance Should the unit become dirty, wipe it with a clean damp cloth Do not use any solvents or detergents Service Should the system not work as expected, please follow Checklist for installation found on www.univox.eu/support or contact the local distributor for further instructions Before returning a product to us for service you will need a Service Number from your distributor They will also send you a Service Report Form which must be completed and returned with the product Technical data For additional information, please refer to product data sheet and CE certificate which can be downloaded from www.univox.eu/products If required, other technical documents can be ordered from support@edin.se Environment To prevent possible harm to the environment and human health, please dispose of the product responsibly by following statutory disposal regulations Measuring devices Univox® FSM Basic, Field Strength Meter Professional instrument for measurement and certification of loop systems in accordance with IEC 60118-4 Univox® Listener, testing device Loop receiver for fast and simple check of the sound quality and basic level control of the loop 18 Technical data Univox PLS-7/PLS-7D Univox SLS-7/SLS-7D Induction Loop Output: RMS 125 ms Max Drive Voltage 100 Vpp 100 Vpp Max Drive Current 20 Arms 2 x 10 Arms Power supply 110-240 VAC primary switched class VI electronic power supply; Enhanced power connection with 4-pin DIN power connector Input 1 Balanced XLR, Line/Mic; Phantom Power +12 VDC On/Off Sensitivity -55 dBu (15 mVrms) to +10 dBu (26 Vrms) Dante RJ-45 ethernet input PoE (option) Input 2 Balanced phoenix screw terminal block Dip switch programmable: Low cut filter@150 Hz - Flat/Speech; Line/50-100 V connection On/Off; Override On/Off (Input 3 signals higher than -6 dB above AGC-knee overrides all other input signals) Input 3 Unbalanced RCA or Phoenix Screw Terminal Block Sensitivity: -24 dBu (30 mVrms) to +162 dBu (5 Vrms) Monitor control 10 W speaker and 35 mm front panel headphone output Loop error Speaker monitor output; 24 V power output; Relay output to mixer Frequency response 75-6800 Hz Distortion, Power Loop Driver < 005 % Distortion, system < 015 % Dual Action AGC Dynamic Range: > 50-70 dB (+15 dB) Attack time: 2-500 ms, Release time: 05-20 dB/s Cooling IP class Fan free convection cooling (chassis cooling) IP20 Size 1U/19 " rack mount WxHxD 430 mm x 150 mm x 44 mm (incl rubber feet) Weight (net) 230 kg 231 kg Mounting options Rack mount (brackets included), wall mount or freestanding Part No 217700/217710 (Dante) 227000/227010 (Dante) Product is designed to meet the system requirements of IEC60118-4, when correctly designed, installed, commissioned and maintained Specification data complied according to IEC62489-1 19 Notes 7-series-ig-gb -220801 Copyright © Bo Edin AB (Univox) Bo Edin AB Stockby Hantverksby 3, SE-181 75 Lidingö, Sweden +46 (0)8 767 18 18 info@edinse wwwunivoxeu Hearing excellence since 1965