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PLM+ SERIES - Huss Licht & Ton

1. Figure 8 1 Back Panel Interface 8 1 Speaker Outputs The PLM is available with either 4 mm binding posts or Neutrik soeakON connectors for the outputs The outputs of the PLM can produce a high voltage Do not connect or disconnect loudspeaker s while the PLM is powered on Never operate the PLM with any portion of bare loudspeaker wire exposed For speakON connector versions do not use mating plugs without the rear covers in place 8 1 1 Bridge Mode Power outputs may be bridged on all PLM models by following the configuration instructions in the Lake Controller Operation Manual I O CONFIG gt OUTPUT CONFIGURATION and the wiring instructions in this chapter Bridge Mode can only be activated deactivated using the Lake Controller software Note When Bridge Mode is activated CLASS 3 wiring is required 2 d PLM SERIES Operation Manual rev1 0 0 57 8 Back Panel Interface 8 1 2 speakON Connectors O On both PLM models the power outputs are simultaneously available on a single 8 pole speakON connector and on two 4 pole speakON connectors The two 4 pole connectors carry the outputs of channels 1 amp 2 and 34 4 respectively chases 1 CH I 1 CH 34 l 1 CH WIRING 2 CH H 44 Ane AAAOOOOOAOOAnD Figure 8 2 speakON Connections 34 CH 3
2. x Wrong Type of Speaker Amp Ch Mute Channel 5 8 AMP CH MUTE Amp Channel Mute Amp Temp Fault Channel 5 8 TEMP FLT CH Temp Fault Amp Channel Analog Input Fault Frame 1 ANALOG IN FAULT Frame Fault Analog Input Check AC Mains Frame 1 CHECK AC MAINS Frame Fault Check AC Mains Current Average Limiter Channel 5 8 CAL ACTIVE N A Current Protection Limiter Channel 5 8 CURRENT CLIP N A DSP Area Temp Fault Frame 1 TEMP FLT DSP Temp Fault DSP Area Input Channel Mute Inp Mix 2 3 INPUT MUTE Input Mute Internal Audio Interface Fault Frame 1 AUDIO FAULT Frame Fault Audio Interface Module Input Mute Module 2 3 MOD IN MUTE Module Input Mute Module Output Clip Module 2 3 MOD CLIP N A Module Output Mute Channel 5 8 MOD OUT MUTE Module Output Mute No Input Source Available Module 2 3 NO INPUT No Input Source No Load Detected at Output Channel 5 8 NO LOAD Channel Fault No Load Detected Physical Input Clip Module 2 3 INPUT CLIP N A Power Average Limiter Frame 1 PAL ACTIVE N A Power Channel Failure Channel 5 8 SERVICE CH Channel Fault Unit Needs Service PSU Area Temp Fault Frame 1 TEMP FLT PSU Temp Fault Power Supply Unit PSU Fault Undervoltage Frame 1 PSU FAULT Frame Fault PSU Undervoltage PSU Mains Over Voltage Peak Frame 1 MAINS gt 400 VPK Frame Fault PSU Mains gt 400 VPK PSU Mains Over Voltage RMS Frame 1 MAINS gt 270 V Frame Fault PSU Mains gt 270 V PSU Mains Under Voltage Frame 1 MAINS lt 65 V Frame Fault
3. LimiterMax LimiterMax is the name given to Lake s proprietary package of dynamics control which forms part of the Lake Processing system Line Driver An analog audio amplifier usually with zero gain having very low output impedance and high drive capability They are used for transmitting balanced analog audio over very long cables Linear Phase Crossover See FIR Filters Load Library The Lake Controller includes LoadLibrary a set of Module files specific to the PLM Series These Modules include a database of the electrical characteristics of various popular loudspeakers in addition to the standard Module data The PLM uses the load data when verifying and monitoring amplifier loads See Fingerprint LoadSmart and SpeakerSafe Load equal unequal The PLM draws different current levels from the AC supply and thus has different power ratings according to whether all channels of the amplifier are driving into the same load impedance or if there are different impedances on different channels LoadSmart is a load verification procedure within the PLM which allows the operator to confirm that each PLM output has the correct quantity and type of LoadSmart speaker connected to it It is intended to be used pre performance prior to running SpeakerSafe Loop Thru This term refers to the Link connectors provided on the PLM for daisy chaining further amplifiers or other equipment The use of these to con
4. 50 0 0 0 4 cip Nominal 100 0 Noise 150 0 Analog AES Input Input Mixer Module In Module Out Amp Attenuation Analog Ref Amp Gain ISVPL Output 200 0 Table 10 2 Digital Input Low Noise with Good Headroom High Input High SPL dB dBu PLM SERIES Operation Manual rev1 0 0 7 10 Application Guide Figure 10 3 illustrates how to achieve the lowest possible output noise although this is not a recommended configuration e Input Clip O dBFS e Amp Gain 22 dB e SNR 114 8 dB e Absolute Noise Floor 71 9 dBu 100 0 50 0 0 0 AAA ae Cip 50 0 Nominal 100 0 Noise 150 0 Analog AES Input Input Mixer Module In Module Out Amp Attenuation Analog Ref Amp Gain ISVPL Output 200 0 250 0 dB dBu Table 10 3 Digital Input Optimized for Minimum Noise Not Recommended The improvement in noise performance at the cost of losing headroom and compression features is only 0 6 dB it is therefore not recommended to optimize performance in this manner 10 4 3 2 Analog Input Gain Structure Examples Figure 10 4 illustrates how to minimize absolute noise while limiting the available SPL Input Clip 12 dBu e Amp Gain 22 dB e SNR 105 5 dB e Absolute Noise Floor 71 5 dBu e SPL is limited to 8 9 dB relative to clip in this minimum absolute noise level example 60 0 40 0 20 0 0 0 4 c
5. 11 5 4 Network MENU gt FRAME gt NETWORK Pressing the NETWORK button displays a further screen containing network configuration information All parameters except Redundancy are view only on the front panel and are either not editable or can only be adjusted via the Lake Controller A summary at the top right of the screen confirms whether a valid connection is present for both Ethernet ports and whether the Lake Controller is online e P Addr Displays the Internet Protocol address for the selected unit and can only be changed via the Lake Controller software Please refer to the Lake Controller Operation Manual for further details e MAC Displays the unique Media Access Control Ethernet address for the processor This value cannot be changed e Frame ID Displays the Frame ID a unique Lake product identifier that cannot be changed e Primary and Secondary network connection status as well as Lake Controller connection status e Mask Displays the IP address subnet mask for the selected unit and can only be changed via the Lake Controller software Please refer to the Lake Controller Operation Manual for further details e IP Config Displays the IP configuration of the device Auto Zero Conf Auto DHCP or Fixed IP e Redundancy Displays the dual redundancy status for the Frame ON OFF This mode can be changed by pressing the adjacent button and confirming on the following dialog screen Changing redundancy mode requires a po
6. Analog Input Sensitivity and Digital Gain Offset Press a dynamic function to the right of the LCD to toggle the selection of input source and input sensitivity digital gain offset then use the rotary encoder to change the parameter The maximum input level accepted by the analog input pre amplifiers without clipping is 26 dBu Digital gain offset may be applied to Dante or AES3 digital input signals in 0 1 dB increments from 100 dB to 15 dB 7 11 3 2 AES3 Input Termination MENU gt I O CONFIG gt AES TERM MEMU JO CONFO AES TERM METER MENU Figure 7 19 AES Termination To adjust the AES3 Input Termination select AES TERM from the Input Config menu then use the rotary encoder to toggle the value An icon is displayed in the bottom left of the display in Meter Mode when AES is set to Terminated For fault free operation when using AES3 digital audio as an input source inputs must be correctly terminated with the characteristic impedance of 110 ohm The Input Termination setting is determined by the method used to distribute the AES3 signals DO PLM SERIES Operation Manual rev1 0 0 7 Front Panel Interface The PLM device at the end of a distribution line should be set to TERMINATED all other PLM devices should be set to UNTERMINATED If an AESS distribution amplifier DA is being used to distribute the digital audio signals with one DA output per processor then all terminations should be on However if
7. reparations doit etre faire par personnel qualifi seulment 2 PLM SERIES Operation Manual rev 1 0 0 A To completely disconnect this equipment from the AC mains disconnect the power supply cord plug from the AC receptacle The mains plug of the power supply cord shall remain readily operable Francais Pour d monter compl tement l quipement de l alimentation g n rale d monter le cable d alimentation de son r ceptacle La prise d alimentation restera ais ment fonctionnelle To reduce risk of fire or electric shock do not expose this apparatus to rain or moisture Francais Pour r duire les risques d incendie ou de choc lectrique n exposez pas l appareil a la pluie ou a l humidit Do not expose this system apparatus to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the apparatus Francais N exposez pas ce systeme appareil au ruissellement ni aux claboussures et assurez vous qu aucun objet contenant du liquide tel qu un vase n est plac sur l appareil This apparatus must be connected to a mains socket outlet with a protective earthing connection Francais Cet appareil doit tre raccord a une prise secteur avec terre de protection The mains plug is used as a disconnect device and shall remain readily operable Francais Lorsque la prise du r seau d alimentation est utilis s comme dispositif de d connexion ce dispositif doit dem
8. Intemational Warrants A A E E da 87 12 3 Technical Assistance and Service 87 eee ere reer eer rr rr rro rro rro rro rro rro rro rones or PLM SERIES Operation Manual rev 1 0 0 5 2 Introduction 2 Introduction 2 1 Welcome Thank you for choosing the Lab gruppen PLM Series of Powered Loudspeaker Management systems for your sound reinforcement needs We are confident that you will be pleased with the performance unique features configuration flexibility reliability and long term durability offered by this product For fast installation and use of this product your welcome package includes a printed copy of the PLM Series Quick Start Guide which contains the information required to safely install the product and place it in service Control and editing features are accessible via the front panel interface or via the included Lake Controller software It is recommended that the Quick Start Guide and all product documentation on the included USB key is reviewed to ensure familiarity with the various configuration and control options Thank you again for placing your confidence in Lab gruppen products 2 2 Main Features The PLM Series incorporates a number of sophisticated technologies to ensure the best possible performance and many years of reliable operation The following section summarizes the benefits of each feature additional information is available in the reference manuals 2 2 1 Amplifier Platform The PL
9. PSU Mains lt 65 V PSU Needs Service 1 Frame 1 NEEDS SERVICE 1 Frame Fault Needs Service 1 PSU Needs Service 2 Frame 1 NEEDS SERVICE 2 Frame Fault Needs Service 2 PSU Needs Service 3 Frame 1 NEEDS SERVICE 3 Frame Fault Needs Service 3 PSU Needs Service 4 Frame 1 NEEDS SERVICE 4 Frame Fault Needs Service 4 PSU Needs Service 5 Frame 1 NEEDS SERVICE 5 Frame Fault Needs Service 5 PSU Needs Service 6 Frame 1 NEEDS SERVICE 6 Frame Fault Needs Service 6 PSU Needs Service 7 Frame 1 NEEDS SERVICE 7 Frame Fault Needs Service 7 PSU Needs Service 8 Frame 1 NEEDS SERVICE 8 Frame Fault Needs Service 8 PSU Rail Protect Frame 1 PSU POWER PROT Frame Fault PSU Power Protect Short Circuit Protection Channel 5 8 SHORT CIRCUIT Channel Fault Short Circuit Protection Speaker Magnet Temp Fault Channel 5 8 TEMP FLT MAG Temp Fault Speaker Magnet Speaker VC Temp Fault Channel 5 8 TEMP FLT VC Temp Fault Speaker Voice Coil VHF Protection Channel 5 8 VHF FAULT Channel Fault Very High Frequency Voltage Protection Limiter Channel 5 8 VOLTAGE CLIP N A Channel 5 8 WRONG LOAD Load Type Routing Mismatch Table 7 6 Fault Conditions Red LED 38 PLM SERIES Operation Manual rev1 0 0 7 Front Panel Interface 7 10 Meter Mode 7 10 1 Home View The default view when powering on the device is Meter Mode gt Home View as shown in Figure 7 7 MUTE NABLE METER MENU Figure 7 7 Meter Mode gt Home View Home View provides
10. step size 0 1 dB Inf to O dB step size 0 25 dB 4 x 3 pin XLR electronically balanced 2x3 pin XLR Neutrik speakON 1 x NLT8 2 x NLT4 or 4 binding posts pairs 2 x RJ45 etherCON Via Ethernet for Lake Controller software or DLM the 3rd party protocol Neutrik powerCON 32 A Three fans front to rear airflow temperature controlled speed 2 5 inch Black white daylight readable LCD RGD LED s and detailed fault description on display 8 provided On Standby Enables muting of outputs and inputs via soft button keypad Toggles through meter views Provides a menu driven interface for full function front panel control Yes Provides a back function 100 240 V AC 45 66 Hz 70 265 VAC NEMA L5 30 Twist lock 125 V 30 A and CEE 7 7 Schuko 230 V 16 A Yes Max 8 Ampere 0 98 Yes Configurable current threshold and breaker profile 32A Yes Yes Yes W 483 mm 19 H 88 mm 2 U D 424 mm 16 7 D 498 mm 19 6 17 kg 87 Ibs Black painted steel chassis with black painted steel aluminium front CE ANSI UL 60065 ETL CSA C22 2 NO 60065 FCC PSE RCM BIS India Intercooler Class TD and Lake are national and or international registered trademarks of Lab gruppen AB PLM Powered Loudspeaker Management R SMPS LoadLibrary LoadSmart SpeakerSafe BEL UVL and ISVPL are trademarks of Lab gruppen AB Dolby and the double D symbol are registered trademarks of Dolby Labora
11. 4 CH 4 O PLM Output Channels 1 amp 2 BRIDGE MODE NL4 PLM Output Channels 1 8 2 PLM Output Channels 2 amp 1 Figure 8 3 speakON wiring and pinouts Bridge Mode Figure 8 4 speakON NL4 NL8 Configuration DB PLM SERIES Operation Manual rev 1 0 0 8 Back Panel Interface NL8 PLM Output PLM Output PLM Output Channels 1 amp 2 Channels 1 4 Channels 3 amp 4 Figure 8 5 speakON NL4 NL8 Configuration 8 1 3 Binding Post Connectors Binding post versions of the PLM are fitted with four pairs of black and red 4 mm binding posts SPEAKER OUTPUTS L 320 49 l F BRIDGE Figure 8 6 Binding Post Configuration SPEAKER OUTPUTS 1 2 y A d Figure 8 7 Binding Post Configuration Bridge Mode PLM SERIES Operation Manual rev1 0 0 99 8 Back Panel Interface Connect the loudspeaker terminals to the red binding posts and the terminals to the black binding posts There are three methods of connecting speaker cables to the binding posts 1 Solder 4 mm banana plugs to the ends of the speaker wires and plug into the center of the turrets 2 Thread the stripped ends of the wires through the holes in the posts Enter the wires for output channels 1 and 3 from above and for channels 2 and 4 from below Tighten the plastic turrets by finger only being careful not to overtighten 3 Crimp 4 mm insulated
12. GAIN CUZWAY ALLOW 0 00d8 JB 0 7 MUTE ya a2 sean 4 00018 4 0048 METER 14 0048 14 0008 c4 sue 0 0048 AEN MENU 0 0048 Figure 7 16 Module Gain Edit Screen Press the illuminated button next to the module input s and or output s for adjustment and use the rotary encoder to change the value s Multiple gain values may be adjusted simultaneously in 0 1 dB increments subject to defined level limits 7112 3 Delay MENU gt MODULE gt DELAY Press the illuminated button next to the input s and or output s for adjustment and use the rotary encoder to change the value s Multiple delay values may be adjusted simultaneously in 0 1 ms increments subject to defined level limits The audio signal may be delayed typically for reasons of driver or delay subsystem alignment at either the Module inputs or on individual outputs Delay added at the inputs affects all outputs equally and will be generally be introduced to time align arrays of loudspeakers at different locations Delaying individual outputs may be desirable to time align drivers in the same cabinet or array 7 11 2 4 Phase Polarity MENU gt MODULE gt PHASE Press the illuminated button next to the input s and or output s to be adjusted and use the rotary encoder to change the value s Phase may be changed on one input or output at a time Audio phase reversal is available at the inputs to Modules A D and also individually on the four o
13. Lake Procd eieg 6 4 Modules and Frames 6 4 1 Overview A Frame represents one physical Lake Processor device e g PLM 12K44 A maximum of four Modules are contained within each Frame these are referred to as Module A B C and D The number of Modules shown in a given Frame is dependent upon the signal processing configuration of that Frame Each Module can be configured as a Classic Crossover Bessel Butterworth Linkwitz Riley as a Linear Phase Crossover or as multiple full bandwidth Auxiliary Outputs The default configuration for the PLM is 4 x Contour Classic 1 Way CL1 Way Output Modules providing a total of twelve Module outputs that can be routed to any of the four power outputs Please refer to the Lake Controller Operation Manual for further information 6 4 2 LoadLibrary and Fingerprints In addition to the standard loudspeaker presets Module files the Lake Controller also includes a set of enhanced Module files specifically for use with the PLM and PLM Series These supplementary PLM Module files known as the LoadLibrary incorporate both Lake DSP parameters along with PLM specific data LoadLibrary Module files include parameter settings for the Amplifier Gain and ISVPL limiter Additionally LoadLibrary loudspeaker types may also include data relating to the electrical characteristics of a particular loudspeaker Electrical characteristic data is used to enable load verification LoadSmart to be pe
14. at the output This results in zero voltage overshoot at the output with a rounded limitation up to the threshold e The amplitude of the output signal between digital samples is predicted which permits the ISVPL to respond to analog peaks that may occur at the digital to analog converter e The release time of gain reduction is adaptive depending on the dynamics of the signal It is possible to select different ISVPL profiles for limiting optimization for a specific frequency band and personal preference The profiles are divided into two categories with one category optimized for low distortion and the other focusing on producing high sound pressure level SPL Within each category there are profiles optimized for the different frequency bands 5 3 1 1 Low Distortion Profiles e Universal The universal profile is a soft limiter that can be used for all frequencies and is conservative in its action upon VCL and CPL e Sub LF The Sub LF profile is tuned for frequency bands below 600 Hz It has longer attack and release times and is less conservative when it comes to acting upon VCL and CPL o 5 3 1 2 High SPL Profiles High SPL profiles do not use the adaptive release time feature High SPL profiles optimized for high frequencies use less of the look ahead delay peak rounding feature this feature is used most in the Sub profile and least the HF profile e Sub The Sub profile is optimized for frequencies between 20 200 Hz e LF T
15. available on a single 8 pole speakON connector and on two 4 pole speakON connectors The two 4 pole connectors carry the outputs of channels 1 amp 2 and 3 4 4 respectively Bridge Mode can be enabled via the Lake Controller software Please refer to the Lake Controller Operation Manual Analog Inputs Analog inputs are available on four standard XLR3F latching connectors The inputs are electronically balanced and feature Lake Iso Float circuitry The impedance is 20 kohms and the inputs can accept a maximum input level of 26 dBu O AES3 Inputs Two latching XLR3F connectors are provided for AESS digital audio signals four audio channels Input impedance is 110 ohms please ensure that 110 ohm digital audio cables are used standard XLR microphone cables are rarely suitable for reliable digital audio transmission Note The PLM does not provide Analog or AES loop through Link connectors Where needed gt itis recomended to use Y split cables or patchpanels wired to connect the Inputs with Link output connectors The AESS termination load shall be enabled when the PLM is the last unit connected within an AES3 daisy chained system The termination may be disabled if desired via the front panel menu and within the Lake Controller software 14 PLM SERIES Operation Manual rev 1 0 0 4 Product Overview O Primary Network Connector The primary Neutrik RJ45 etherCON connection provides integration int
16. by navigating to I O CONFIG gt EVENTS amp CONTROL gt CONTROL in the Lake Controller Please refer to the Lake Controller Operation Manual for further details 6 PLM SERIES Operation Manual rev 1 0 0 10 Application Guide 10 4 Gain Level Optimization 10 4 1 Maximize Volume Capability To maximize the volume capability of the device ensure there is sufficient headroom in the signal path to avoid clipping before the limiters engage It must be possible to achieve enough gain through the device to engage the limiters and realize a high average SPL As an optimal setting allow for a headroom of 10 dB or more for all channels the simplest way to accomplish this is to increase the Module input gain 10 4 2 Minimize Noise To help provide the best volume to noise ratio use an AES or Dante digital input signal wherever possible If using analog inputs ensure that unused or unnecessarily high headroom is not introduced at the input to the device If full or high average power is not required the Module input gain may be reduced 10 4 3 Gain Optimization Examples This section provides examples on performance effects resulting from changes to the PLM gain structure 10 4 3 1 Digital Input Gain Structure Examples Figure 10 2 illustrates the recommended configuration of the PLM when using an AES or Dante digital input e Input Clip O dBFS e Amp Gain 35 dB e SNR 114 2 dB e Absolute Noise Floor 71 3 dBu
17. front panel power button When the device is turned on the power button LED changes from red Standby to green Active Note In rush current is controlled and limited during the soft start sequence This enables multiple PLM units on the same AC mains circuit to be turned on simultaneously a 3 5 Grounding Analog inputs feature Iso Float ground isolation a technology which combines the benefits of transformer coupled isolation with the advantages of clean direct coupled inputs The audio converters are galvanically isolated and not connected to mains ground High speed transformers and opto isolators create a barrier between the device and the outside electrical environment Note The Iso Float feature is activated by default but may be disabled via the Lake Controller software I or via the front panel menu a Use correctly shielded balanced audio input connections to minimise hum and interference Please refer to section 8 2 4 for further information A NEVER disconnect the earth ground pin on the mains cable AC power cord PLM SERIES Operation Manual rev1 0 0 T 4 Product Overview 4 Product Overview 4 1 Front Panel Overview The front panel presents the following amplifier status indicators The front panel controls are clustered around a daylight readable LCD allowing adjustment and monitoring of the majority parameters and meters The two clusters of controls
18. has been removed or defaced will not be eligible for warranty service Lab gruppen shall not be responsible for any incidental or consequential damages Lab gruppen s responsibility is limited to the product itself Lab gruppen takes no responsibility for any loss due to cancellation of any events or rent of replacement equipment or costs due to a third party s or customer s loss of profit or any other indirect cost or losses however incurred Lab gruppen reserves the right to make changes or improvements in design or manufacturing without assuming any obligation to change or improve products previously manufactured This warranty is exclusive and no other warranty is expressed or implied This warranty does not affect the customer s statutory rights 12 2 International Warranties Please contact your supplier or distributor for this information as rights and disclaimers may vary from country to country 12 3 Technical Assistance and Service 12 3 1 International Service If your Lab gruppen product requires repair contact your Lab gruppen dealer or distributor visit http abgruppen com support find_service_centre or contact Lab gruppen by fax or email to obtain details for the nearest authorized service centre PLM SERIES Operation Manual rev1 0 0 87 12 Warranty and Support 12 3 2 Factory Service In the event a Lab gruppen product requires factory service you may contact Lab gruppen s service departmen
19. is selected as Dante Clock Master Confirmation of Dante Master Slave status is also displayed in the Lake Controller The Dante Preferred Master setting can be set from the Lake Controller I O Configuration screen or via the Dante Controller For further information on Digital Clock configuration and the Lake Controller user interface please refer to the Lake Controller Operation Manual 84 PLM SERIES Operation Manual rev 1 0 0 11 Technical Specifications General Processing Network Numbers of amplifier channels Total burst power all channels share among channels with RPM Max Output Power all ch s driven 2 ohms 2 67 ohms 4 ohms 8 ohms 16 ohms Hi Z 70 V Hi Z 100 V Max output power single channel 2 ohms 2 67 ohms 4 ohms 8 ohms 16 ohms Hi Z 70 V Hi Z 100 V Amplifier output modules all models all channels Peak output voltage Max output current Rational Power Management RPM Default voltage limitation can be lifted with RPM configuration Protection features Audio Performance Amplifier platform with digital input THD N 20 Hz 20 kHz for 1 W THD N at 1 KHz and 1 dB below clipping Dynamic range Channel separation Crosstalk at 1 kHz Frequency response 1 W into 8 ohm 20 Hz 20 kHz Internal sample rate Data path Product propagation delay AES 96 kHz analog input Lake processing Loudspeaker processing System tuning Input redundancy Matrix System in
20. level then a fault is displayed and audio is muted Each power output channel the power supply and DSP area have separate indications For all temperature faults temperature monitoring will continue at 0 5 second intervals with the output remaining muted When the area has cooled below the dangerous threshold the fault condition is cleared and audio is restored PLM SERIES Operation Manual rev1 0 0 21 5 Operation and performance 5 3 8 2 Power Output Channels A power output channel temperature warning or fault is indicated in one of the front panels LEDs in the right hand soft function buttons e A warning is indicated by a static yellow LED and adjacent warning message TEMP WARN CH e A fault is indicated with a static red LED and adjacent warning message TEMP FLT CH An event report is sent to the Lake Controller software for both the warning and the fault If a temperature fault condition arises on a power channel the output of that channel will be muted 5 3 8 3 Power Supply DSP A power supply PSU or DSP temperature warning or fault is indicated by the LEDs in the four left function buttons being lit at the same time e Awarning is indicated by static yellow LEDs and adjacent warning message TEMP WARN PSU or TEMP WARN DSP e A fault is indicated with static red LEDs and adjacent warning message TEMP FLT PSU or TEMP FLT DSP At temperatures above the critical warning level and below the dangerous fault level
21. on either side of the LCD include five dedicated function buttons eight dynamic function buttons with embedded LEDs and a rotary data encoder O Handles Two sturdy cast aluminium handles are integrated into the front panel The handles should be used when carrying the device and when fitting into or removing from a rack Ensure that any door or removable rack front cover has sufficient depth to clear the handles Dust Filters Two dust filters are fitted behind metal covers To remove the covers loosen the thumbscrews located behind the handles Once detached the dust filter elements can be removed for cleaning please refer to section 9 2 for further information Note NEVER operate this device without the dust filters in place Display The display illuminates when the device is on The LCD function buttons and the rotary encoder provide real time control and monitoring of most parameters The LEDs embedded in the function buttons indicate available menu options provide confirmation of Controller communication and indicate various faults and warnings The brightness and contrast of the display and front panel LEDs can be adjusted via the front panel menu A screensaver will turn off the display when the unit is left without any action or signal present It will light up again at the push of any button or when signal reaches above 20 dB on any input Please refer to section 7 for further details
22. on the network 7 TS Frame not able to lock to Check AES sender and Warning Araba hole EIREING incoming AES stream clock configuration F Two or more devices on the network Review Dante Warning Dante device name conflict NAME CONFLICT withthe same Dante name configuration wee Restart device if not 2 DANTE NEEDS Lake cannot detect a functioning z Warning Dante module not detected SERVICE ference cleared it needs service to operate Dante F Dante module with Dante module not loaded Retry updating the firmware Warning incompatible firmware DANTE FW INVALID with correct FW with LakeUpdate Internal audio interface Restart device if not Fault Anaie rant SUDIO FAJT not functioning cleared it needs service Voltage and current sensing on amplifier output faulty Audio continues but Restart device if not Fault Sense fault DSP SENS ELLEDSP protection might be compromised cleared it needs service No load monitoring E Restart device if not Fault A D converter power A D PSU FAULT Voltage supply to the analog input A a supply fault converters faulty analog input to work TEMP Improve cooling or reduce Warning Temperature warning TEMP WARN PSU Power supply temperature output power to avoid power supply approaching critical levels temperature becoming critica Improve cooling or reduce Temperature warning DSP area temperature approaching output power to avoid Warning DSP area TEMP WARN DSR critical levels temperature becoming critica Baread Amp
23. or outputs adjusted simultaneously Changes are effected in real time and are stored without further confirmation Pressing EXIT returns to the previous menu level automatically retaining any parameter changes Note All parameters are also editable via the Lake Controller unless specified otherwise PLM SERIES Operation Manual rev 1 0 0 43 7 Front Panel Interface 7 11 1 1 Parameters with Individual Values and Group Totals The following parameters display two values e MODULE gt GAIN e MODULE gt DELAY e MODULE gt LIMITERS gt MAXRMS LEVEL e MODULE gt LIMITERS gt MAXPEAK LEVEL The Module parameter can be adjusted using the rotary encoder The Group total shown in brackets is only adjustable using the Groups function in the Lake Controller The Group total is the sum of the individual Module value plus any values for this parameter on all Groups to which the Module is assigned Please refer to the Lake Controller Operation Manual for further information on Groups 7 11 1 2 Menu Structure Overview From the Main Menu the following submenus are available as shown in Figure 7 13 and described in the following sections e MODULE See section 7 11 2 e Input Mixer e Gain e Delay e Polarity e Amp Gain e Limiters e Mute e INPUT OUTPUT CONFIGURATION See section 7 11 3 e Input Router 1 4 e AES Termination e Iso Float e Output Router e ATTENUATION See section 7 11 4 e FRAME See sectio
24. selection in the Lake Controller or Controller communication providing visual confirmation of 1 Network communication between the Lake Controller and the Lake Processor Flashing LED 2 Selection of the Lake Processor in the Lake Controller software Steady LED Note The Communication LED can be dimmed via the front panel by selecting Frame menu and then Front gt Dimming Dimming affects all LEDs as well as the backlight of the display 7 8 2 Frame Faults and Warnings LED O All four LEDs on the left flash off red to indicate a Frame fault and flash yellow mute state to indicate a Frame warning Additional clarification of the current fault or warning is displayed in the bar of the LCD All mute fault and warning states displayed on the front panel are summarized in section 9 1 Additional faults and warnings are reported in the Event Log of the Lake Controller only All faults and warnings recorded in the Event Log are listed in section 9 1 along with scenarios that may have arisen to cause them 32 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface 7 8 3 Rotary Encoder The rotary encoder is used to adjust parameters in conjunction with the selection made via the dynamic function buttons and LCD menus The ring around the rotary encoder illuminates when a selected parameter is available for adjustment Turn the encoder clockwise to increase the selected parameter or counter clockwise to decrease t
25. spade terminals onto the ends of the wires and push into the binding post assembly from above Ch 1 amp 3 or below Ch 2 amp 4 The hole in the post is ignored Hand tighten plastic turrets being careful not to overtighten 8 2 Analog Inputs 8 2 1 Analog Input XLR Connections O Four electronically balanced analog inputs are provided via latching XLR3F connectors INPUT I INPUT 2 INPUT 3 INPUT 4 ANALOG WITH ISO FLOAT PIN 1 SCRN 2 POS 3 NEG Figure 8 8 Analog Input XLR Connections 8 2 2 Analog AES3 XLR Wiring and Pin Out All XLR connections are wired to IEC268 as shown in Figure 8 9 Figure 8 9 IEC268 XLR Wiring and Pin Out Pin 1 Ground Shield Pin 2 Hot Pin 3 Cold 60 PLM SERIES Operation Manual rev1 0 0 8 Back Panel Interface 8 2 3 Unbalanced Operation Balanced connections are recommended where possible However if it is necessary to drive the device from equipment with an unbalanced output wire the inputs as shown in Figure 8 10 Unbalanced Output Balanced Input Typically phono XLR Figure 8 10 Balanced to Unbalanced Analog Wiring and Pin Out The method shown in Figure 8 10 uses twin and screen balanced cable and standard XLR pin connections at the PLM Series device end with the cold wire and the cable screen connected to the signal ground of the equipment at the source end This usually provides better noise and hum rejection than the more co
26. the ISVPL threshold is slowly reduced to decrease the output power and cool down the device This enables the device to continue to pass audio although with a reduced amplitude in extreme conditions If reducing the ISVPL threshold does not cool down the device a temp fault will still be issued when the dangerous temperature level is reached An event report will be sent to the Lake Controller software for both the warning and the fault 5 3 9 DC Protection DC protection is implemented on each power output to prevent damage to connected loudspeakers or any PLM components DC present at the output will cause the PLM s power output module breaker to blow In this instance a red LED will illuminate and NEEDS SERVICE will display on the LCD mM Note The power output channel modules are independent of the input voltage This is not a user servicable fault condition and the unit should be returned for repair i 4 5 3 10 VHF Protection The PLM includes protection circuits that detect Very High Frequency VHF content in the input signal The detection is frequency dependent initiated from 10 KHz upwards If continuous VHF signals are detected above the threshold the output will mute for approximately 6 seconds before a further measurement is taken When continuous VHF signal stops the output unmutes and the amplifier returns to normal operation 22 PLM SERIES Operation Manual rev 1 0 0 5 Operation a
27. then press the RECALL button to overwrite the current configuration Note Frame Presets must initially be created in the Lake Controller and stored as a Preset using the Lake Controller or the PLM Series Preset Manager Up to 100 Frame Presets can be stored in the device The data within a Frame Preset includes the configuration of all Modules in the Frame including levels crossovers EQ input mixer and output routing Note that Network settings and the Dual Redundancy setting are not part of Frame Presets As Frame Presets are stored within the device complete processor configurations can be recalled without connecting the device to a PC 711 8 Load Monitor Menu LoadSmart MENU gt LOAD MON MENULOAD MON MUTE Configure EMAF of Cabenets in allei y Load Smart SET METER Verification Estimated MENU ol Cabinets Figure 7 22 LoadSmart Verification Results Screen PLM SERIES Operation Manual rev1 0 0 99 7 Front Panel Interface 7 1 8 1 Configure of Cabinets in Parallel This option allows selection of the number of speaker cabinets connected to each PLM output channel Select individual or multiple outputs and use the rotary encoder to set the value from 1 to 4 This value is used by LoadSmart to confirm the correct connection and status of the speakers connected to each PLM channel 711 8 2 LoadSmart Verification Select this option to initiate LoadSmart verification then select YES to c
28. voltage Protective shut down voltage or reduce auto restart attempt output power LOAD Warning Speaker short SPKR SHORT Both LoadPilot tones below thresholds Check load or calibration One LoadPilot tone is above l Warning Speaker damaged SPKR DAMAGED dcbelowcthreshold Check load or calibration Both LoadPilot tones above thresholds ana Warning Under speaker count UNDER SPKR CNT or LoadSmart detected fewer A e cabling alibration E speakers than expected G6 PLM SERIES Operation Manual rev1 0 0 Category Type On screen text Description 9 Appendix LoadSmart detected more speakers Check load and Warning E A le than expected cabling or fingerprint Warnin Uncertain about load UNCERTAIN LOAD LoadSmart uncertain about load Check load and 9 cabling or fingerprint F M ee Perform LoadSmart Warning Load not verified LOAD NOT VER LoadSmart not verified Sattar At least one LoadPilot tone above Fault No load NO LOAD measurable area or significantly Check load or calibration above thresholds LoadSmart detected impedance Check load and Fault Ciireing sete WRON GOAD response output model cabling or fingerprint LoadPilot or full frequency analysis Fault Short circuit SHORT CIRCUIT below short threshold or hardware Check load and cabling short protection AMP Improve cooling or reduce E Temp warning amplifier TEMP WARN Amplifier channel is approaching
29. 3 14 15 16 17 18 19 20 21 22 by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped Use the mains plug to disconnect the appartus from the mains WARNING To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the equipment The mains plug of the power supply cord shall remain readily operable Do not connect the unit s output to any other voltage source such as battery mains source or power supply regardless of whether the unit is turned on or off Do not remove the top or bottom cover Removal of the cover will expose hazardous voltages There are no user serviceable parts inside and removal may void the warranty An experienced user shall always supervise this professional audio equipment especially if inexper
30. 4 Sine 20 kHz 80 Ch 1 171 92 8 221 1 0 005 221 095 754 407 190 235 Mains Voltage 230 VAC 16 A Standby 0 0 0 0 Power on Idling 0 0 0 0 160 Ch 950 4 654 98 5 1003 32 474 795 528 525 1803 4 454 754 80 Ch 1900 7 729 99 1733 76 949 486 784 274 2676 05 674 805 EEES 40 Ch 3000 11 407 99 1 2562 1500 94 1061 060 3620 49 912 958 2 67 0 Ch 3000 12 816 99 2 2873 22 1499 37 1373 852 4687 78 1182 09 20 Ch 3000 13 091 99 1 2993 04 1499 98 1493 060 5094 53 1284 66 Sine 20 kHz 80 Ch 1 049 90 2 214 02 0 005 214 015 730 25 184 143 TO PLM SERIES Operation Manual rev1 0 0 9 Appendix Level Load piconet cathy Line Current acta Measured Power W Thermal Dissipation A In Out Dissipated BTU hr kCal hr Mains Voltage 100 VAC 30A Standby 0 33 51 8 7 0 7 58 006 14 627 Power on Idling 2 43 96 8 235 0 235 801 853 202 199 16 Q Ch 1175 12 1268 98 6 1191 6 587 596 604 004 2060 946 519 697 80 Ch 2350 22 349 98 9 2197 714 1173 927 1023 788 3493 309 880 888 REE 4Q Ch 4400 29 189 98 9 2852 76 1477 842 1374 918 4691 413 1183 007 2 67 Q Ch 5000 29 250 98 9 2862 12 1399 309 1462 811 4991 32 1258 633 20 Ch 29 134 98 8 2826 48 1354 769 1471 711 5021 688 1266 291 Sine 20 kHz 80 Ch 2 490 96 9 236 425 0 005 236 420 806 698 203 420 Mains Voltage 120 VAC 30 A Standby 0 3 47 5 17 0 17 58 006 14 627 Power on
31. 4 modules of Classic linear phase FIR cross over EQ delay LimiterMax peak and RMS limiters Group control with Raised Cosine MESA EG asymmetric filters Automatic 4 level input redundancy 4 input mixers Comprehensive 8rd party protocol over UDP Ethernet Yes Yes Yes 8x8 Flexible topology Supports Dual redundant networks 48 96 kHz Uni Multicast 0 25 0 5 1 0 2 0 5 0 ms 100 4 AES inputs 44 1 48 88 2 96 176 4 192 kHz up to 24 bits 0 00003 4 high quality inputs with Iso Float ground isolation 26 dBu 21 dBu 96 kHz 24 bit 20k 10kohm 0 00022 0 00033 17 8 194 V step size 0 1 V 67 A peak 33 Arm Yes Yes 11 Technical Specifications PLM 20K44 Lake Dante 4 20000 W 4400 W 5000 W 4400 W 2300 W 1150 W 3300 W 4700 W 4400 W 5900 W 4600 W 2300 W 1150 W 3300 W 4700 W 194 V 67A Any channel has potential to deliver the max single channel output power 194 V Current Average Limiter CAL Very High Frequency Protection VHF Direct Current Protection DC Short Circuit Protection Current Clip Limiter Voltage Clip Limiter Temperature protection lt 0 05 lt 0 04 gt 114 dB gt 70dB 0 05 dB 96 kHz 32 bit floating point 1 61 1 68 ms Up to 4 modules of Classic linear phase FIR cross over EQ delay LimiterMax peak and RMS limiters Group control with Raised Cosine MESA EG asymmetric filters Automatic 4 leve
32. 60 0 Noise 80 0 100 0 120 0 140 0 dB dBu Analog AES Input Input Mixer Module In Module Out Amp Attenuation Analog Ref Amp Gain ISVPL Output Table 10 6 Analog Input Moderate Noise with Very High Output Very High SPL PLM SERIES Operation Manual rev1 0 0 19 10 Application Guide 10 5 Speaker Configurations Connecting two speakers in parallel to a PLM power output presents a load to the amplifier which is half the impedance of that presented by one speaker Therefore the current that two speakers will attempt to draw from the output stage is double that for one speaker and this higher current may be sufficient to cause the Current Peak Limiter to become active The more speakers connected to an output in parallel the lower the impedance and the higher the current draw Multiple loudspeakers may be driven by a PLM power output more satisfactorily if a series parallel wiring configuration is adopted Please ensure care is taken to match polarity correctly When using series parallel wiring the nominal impedance is the same as with one speaker however the principle of power sharing still applies and it is not possible to get the amplifier section to deliver more than its rated power gt Note Nominal loads as low as 2 ohms are supported by the PLM However a 2 ohm nominal load gt has impedance dips at its resonances below 2 ohms in s
33. Bu in 0 1 dB increments subject to user defined level limits The Group total is displayed in brackets for each channel MaxRMS Corner MaxRMSCor A soft knee or hard knee corner may be applied to the RMS Limiter A soft knee corner gently increases limiting as the signal approaches the threshold a hard knee corner applies full limiting to any signal exceeding the threshold by any amount but none to signals below the threshold The Corner parameter is adjustable in 0 1 dB increments subject to defined level limits This figure represents the level below the limiter threshold at which compression commences the larger this negative value the softer the knee A setting of O dB implies a hard knee characteristic Note LimiterMax provides peak and RMS limiting features referred to as MaxPeak and MaxRMS a S respectively Full details regarding LimiterMax can be found in the Lake Controller Operation Manual MaxRMS Attack The attack time may be set for the RMS Limiter Limiter release values are set separately for each of the four outputs in 0 10 ms increments MaxRMS Release The release time may be set for the RMS Limiter Limiter release values are set separately for each of the four outputs in 0 10 ms increments 7 11 2 7 Mutes MENU gt MODULE gt MUTES In Meter Mode Module inputs and PLM power output channels can be muted using the MUTE ENABLE function The MUTE menu also provides mute status and control of the Modu
34. Current Average Limiter CAL The Current Average Limiter CAL monitors the RMS current drawn from each power output channel to ensure that the power output stages are not overloaded When activated it regulates the current to a safe level to protect the channel The CAL should not be activated in normal usage but if it is its operation is indicated by an active LED and the message CAL ACTIVE Further indication is given within the Lake Controller software 5 3 7 Voltage Clip Limiter VCL If current draw from the PLM s power supply is too high the PSU s regulation capability may be exceeded and the internal voltage rails may drop and cause clipping If this occurs the VCL acts rapidly to prevent clipping on the subsequent peaks Limiting is performed by the ISVPL limiter in conjunction with the selected ISVPL profile Indication of this condition is shown on the output LEDs 5 3 8 Temperature Protection 5 3 8 1 Overview PLM Series devices are equipped with a sophisticated temperature sensing system that provides protection from overheating which may occur as a result of inadequate ventilation or excessive power output Thermal measurements are made at several points within each power output channel along with measurements in the power supply and DSP areas If temperature in any area reaches a critical level then a warning is displayed and gain reduction is applied If the temperature continues to increase and reaches a dangerous
35. Idling 2 96 7 227 0 227 774 556 195 315 160 Ch 1175 11 974 98 6 1180 38 587 596 592 784 2022 66 510 043 80 Ch 2350 18 363 99 2144 1173 93 970 073 3310 03 834 671 Ene peanae 40 Ch 4400 30 787 99 2 3547 8 1949 5 1598 295 5453 61 1375 21 2 67 0 Ch 5000 29 548 98 9 3438 6 1751 75 1686 854 5755 78 1451 4 20 Ch 4400 29 884 99 3495 1664 66 1830 337 6245 37 1574 86 Sine 20 kHz 80 Ch 2 034 96 6 231 649 0 005 231 644 790 402 199 311 Mains Voltage 208 VAC 17 3 A Standby 26 9 17 5 0 17 5 59 713 15 057 Power on Idling 92 2 222 0 222 757 495 191 013 160 Ch 1175 5 722 98 5 1151 16 587 596 563 564 1922 96 484 902 80 Ch 2350 10 169 98 8 2054 61 1173 93 880 679 3005 757 754 R etendo 40 Ch 16 208 99 3285 6 1947 77 1337 828 4563 86 1151 09 2 67 0 Ch 15 598 99 3171 1751 75 1419 254 4842 7 1221 16 20 Ch 15 989 99 3253 2 1664 66 1588 537 5420 31 1366 81 Sine 20 kHz 80 Ch 1 208 92 1 228 611 0 005 228 606 780 035 196 697 Mains Voltage 230 VAC 16 A Standby 238 18 0 18 61 419 15 488 Power on Idling 1 2 91 5 222 0 222 757 495 191 013 16 Q Ch 1175 5 106 98 2 1133 7 587 596 546 104 1863 38 469 879 80 Ch 2350 9 179 98 9 2052 85 1173 93 878 924 2999 01 756 244 pias 4Q Ch 15 915 3528 6 2108 58 1420 016 4845 29 1221 81 2 67 Q Ch 16 232 99 3616 2 1964 63 1651 569 5635 39 1421 04 20 Ch 16 080 99 3595 2 1865 44 1729 762 5902 19 1488 32 Sine 20 kHz 80 Ch 1 117 90 3 227 689 0 005 227 684 776 891 195 904 Table 9 3 PLM20K44 Current Dr
36. Input Router Mute is within the Lake Processing system post input type selection A and pre input mixing and routing Please refer to the Lake Controller User Manual for details of mute selection via the software 7 8 4 3 Module Input Mute The Module input mute provides the ability to mute unmute the audio signal at the module level Therefore the PLM Input Router described in section 7 8 4 2 remains unmuted and can be used by another module To mute or unmute a Module input 1 Press METER until Home View is displayed 2 Press MUTE ENABLE 3 Use the associated dynamic function buttons to mute unmute the Module inputs Once the Module input is muted the LED turns red and MOD IN MUTE is displayed on the LCD When unmuted the LED turns green unless any other output warning conditions are active 34 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface Note Fault condition LED indications take priority over mute status indications If a fault condition occurs the LED will indicate the fault by flashing and will note the mute status When a Frame fault is active the audio on all channels is muted Module Input Mutes may also be controlled in Menu Mode Please refer to the Lake Controller User Manual for details of mute selection via the software 7 8 4 4 Module Output Mute Module Output Mute is part of the Lake Processing system at the crossover outputs lt is post Module output EQ and level adj
37. M Series power output section has expanded upon Lab gruppen s robust road proven PLM 200000 amplifier Features common to both platforms include extraordinary power density 4 channels of patented Class TD output stages a Power Factor Corrected PFC Regulated Switch Mode Power Supply R SMPS M the high efficiency Intercooler copper finned cooling system and a full suite of protection features including the Breaker Emulation Limiter BEL Signal inputs are analog AES digital and Dante digital audio network 2 2 2 Amplifier DSP Digital Signal Processor Various features of PLM Series devices are controlled by the on board DSP some of which are summarized in this section 2 2 2 1 Input Gain Sensitivity Input gain Sensitivity is set in the digital domain for PLM Series devices and may be controlled via the Lake Controller software or front panel interface 6 PLM SERIES Operation Manual rev 1 0 0 2 Introduction 2 2 2 2 ISVPL The Inter Sample Voltage Peak Limiter ISVPL tailors each power output to the characteristics of the connected load Please refer to section 5 3 1 for further information 2 2 2 3 Load Verification Performance Monitoring A comprehensive set of proprietary DSP based tools are provided for load verification and real time performance monitoring These functions utilize LoadLibrary a comprehensive database for each loudspeaker component of the connected load usually one or more ba
38. O Standby PLM Series devices are powered on and to standby using the top left button or via the Lake Controller 12 PLM SERIES Operation Manual rev1 0 0 4 Product Overview Mute Enable Select MUTE ENABLE to allow the dynamic function buttons to operate as mute controls for the Module inputs and power output channels The MUTE ENABLE button flashes when the mode is selected a subsequent press deselects this mode If left activated MUTE ENABLE mode will automatically disable two minutes after the last mute action O Meter The METER button scrolls through various meter views including the default Home View Amplifier Meters View Temperature Meters View Inout Meters View and Module Meters View Pressing METER from Menu Mode returns the screen to Meter Mode with the Home View displayed Please refer to section 7 5 for further details O Menu After pressing the MENU button the LCD will display the top level menu In Menu Mode the dynamic function buttons enable access to various information and functionality Please refer to section 7 6 for further details O Dynamic Function Buttons with LEDs Left of LCD The function of these buttons change according to the currently selected view or menu e In Menu Mode they are used for menu navigation and for parameter selection e In Meter Mode they provide Module input mute unmute functionality in conjunction MUTE ENABLE The left buttons provide Module input mute functionality mu
39. Operation Manual for further information Home View looks similar for most configurations with slight variations dependant on the PLM model and processor configuration 7 10 2 Amplifier Meters View Amplifier Meters View provides further signal level information in the form of additional power output meters as shown in Figure 7 9 METER MENU Figure 7 9 Meter Mode gt Amplifier Meters View O Output 1 V Voltage Meter I Current Meter P Power Meter L Gain Reduction Meter 8 Output 2 V Voltage Meter I Current Meter P Power Meter L Gain Reduction Meter Output 3 V Voltage Meter I Current Meter P Power Meter L Gain Reduction Meter Output 4 V Voltage Meter I Current Meter P Power Meter L Gain Reduction Meter LoadPilot Status 1 High Freq Pilot tone Enabled Disabled 2 Low Freq Pilot tone Enabled Disabled Status 40 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface O LoadPilot Status 1 High Freq Pilot tone Enabled Disabled 2 Low Freq Pilot tone Enabled Disabled Status LoadPilot Status 1 High Freq Pilot tone Enabled Disabled 2 Low Freq Pilot tone Enabled Disabled Status LoadPilot Status 1 High Freq Pilot tone Enabled Disabled 2 Low Freq Pilot tone Enabled Disabled Status Current View title amp Frame label Frame faults and warnings e The Voltage Meter V indicates the power output stage voltage relative to its clip level e The Current Meter I indicates
40. PLM SERIES Powered Loudspeaker Management System PLM 20K44 PLM 12K44 i chnologies from lake LAB GRUPPEN Operation Manual 1 Important safety instructions 1 Important safety instructions Before using the device be sure to carefully read the Safety Instructions Keep this document with the device at all times 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with a dry cloth 7 Do not block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with a cart stand tripod bracket or table specified 1
41. PLM12K44 Current Draw and Dissipation Specifications Level Load pr Line Current Eonar Measured Power W Thermal Dissipation A In Out Dissipated BTU hr kCal hr Mains Voltage 100 VAC 30 A Standby 0 0 0 0 Power on Idling 0 0 0 0 160 Ch 950 10 828 98 8 1059 18 474 795 584 385 1994 502 817 80 Ch 1900 19 1845 98 9 1868 46 949 486 918 974 3135 67 790 704 dead 40 Ch 3000 24 607 98 8 2389 08 1200 19 1188 894 4056 68 1022 95 2 67 Q Ch 3000 25 748 98 9 2550 96 1151 38 1399 581 4775 57 1204 23 20 Ch 3000 25 754 98 9 2576 04 1112 96 1463 076 4992 22 1258 86 Sine 20 kHz 80 Ch 2 403 97 5 231 36 0 05 231 355 789 416 199 063 Mains Voltage 120 VAC 30 A Standby 0 0 Power on Idling 0 160 Ch 950 8 802 99 1034 52 474 795 559 725 1909 86 481 599 80 Ch 1900 15 067 99 1764 96 949 486 815 474 2782 51 701 65 E 40 Ch 3000 24 034 99 2 2816 64 1501 7 1314 938 4486 76 1131 4 2 67 Q Ch 3000 24 522 99 1 2893 56 1437 43 1456 128 4968 51 1252 88 20 Ch 3000 25 102 99 2 2980 02 1361 2 1618 821 5523 65 1392 87 Sine 20 kHz 80 Ch 1 964 97 4 226 44 0 005 226 435 772 628 194 829 Mains Voltage 208 VAC 17 3 A Standby 0 0 Power on Idling 0 160 Ch 950 4 947 98 6 1001 16 475 012 526 148 1795 29 452 708 80 Ch 1900 8 717 99 2 1765 86 949 486 816 374 2785 58 702 425 eee 4Q Ch 3000 13 268 99 2 2686 62 1500 94 1185 680 4045 71 1020 18 2 67 Q Ch 3000 13 987 99 1 2846 52 1500 29 1346 231 4593 53 1158 33 20 Ch 3000 14 780 99 2 3046 2 1499 98 1546 220 5275 92 1330
42. Power Output mute Table 7 4 summarizes the meaning of the LED indications LED Color Indication Green Status Good Unmuted Yellow Warning Red Fault Muted Flashing Red Cli C ashing Re ip J Table 7 4 LED Fault and Warning Indications Note An unlit output LED indicates either the channel is not available for the model in use or that the power output channel is not routed to a Module output channel 7 8 5 1 Clip Indication The front panel LEDs also indicate input and output clip or pre clip conditions that can occur within the PLM Input Clip Input clipping is monitored at two stages in the signal path e Analog Input Stage If the input signal exceeds either 26 dBu a clip indication is displayed e A warning is displayed at 24 dBu i e 2 dB from Clip e Module Input Stage If the signal level at this point exceeds 21 dBu a clip indication is displayed Input clipping is indicated by the affected Module LED flashing red and INPUT CLIP displayed on the LCD Ifa subsequent input clip within 400 ms is detected the LED remains lit for a longer period Output Clip All output channels are monitored by a suite of protection circuits that include a Current Peak Limiter CPL and an Inter Sample Voltage Peak Limiter ISVPL The ISVPL will indicate clip only when exceeding the amplifier s maximum output voltage If the ISVPL is set so as to limit the output below maximum voltage then clip in
43. T LED to flicker either sporadically or continuously 8 4 1 Primary Network Connection The Primary Network connection is used for Lake Controller connectivity and Dante digital audio Please refer to section 4 2 for additional information 8 4 2 Secondary Network Connection The Secondary Network connection may be used for a redundant Dante digital audio network Please refer to section 4 2 for additional information PLM SERIES Operation Manual rev1 0 0 63 8 Back Panel Interface 8 5 Power Inlet 8 5 1 Power Connector A Neutrik NAC3 Series powerCON connector rated at 32 A is fitted to the rear of the PLM for AC mains input The power cable AC cord supplied with the PLM has the mating connector ready fitted but may require a mains AC plug specific to your country to be fitted to the other end The wiring an pinout details are shown in Table 8 2 powerCON pin 230 V Version 115 V Version L Brown Black N Blue White e Green Yellow Green Table 8 16 powerCON Connector Wiring and Pinout Ne 64 PLM SERIES Operation Manual rev 1 0 0 9 Appendix 9 Appendix 9 1 Faults and Warnings Overview Category Type On screen text Description Action FRAME Check network cabling Warning Lake Controller offline CTRL OFFLINE Frame unable to na Bake controller network if controller on the network expected
44. a summary of Module I O gain level and limiter gain reduction along with frame module and channel labeling information The example in Figure 7 7 shows a mono 2 way with Module A feeding power output channels 1 amp 2 and Module B configured as CL1 way feeding a subwoofer on power output channel 3 Module C is configured for driving a full range loudspeaker on power output 4 Module D is unused in this example O Module A label input gain meter faults warnings clips amp mutes 8 Module B label input gain meter faults warnings clips amp mutes Module A label input gain meter faults warnings clips amp mutes O Module D label input gain meter faults warnings clips amp mutes Module output label for Power channel 1 gain amp sum of Lake MAX Peak MAX RMS and ISVPL gain reduction faults warnings clips amp mutes Module output label for Power channel 2 gain amp sum of Lake MAX Peak MAX RMS and ISVPL gain reduction faults warnings clios amp mutes Module output label for Power channel 3 gain amp sum of Lake MAX Peak MAX RMS and ISVPL gain reduction faults warnings clios amp mutes Module output label for Power channel 4 gain amp sum of Lake MAX Peak MAX RMS and ISVPL gain reduction faults warnings clios amp mutes Menu Bar Current View title amp Frame label Frame faults and warnings The menu bar is located by default at the top of the display but can be configured in the fr
45. allows no momentary current above the configured threshold e Fast The fast profile models the time constant of the trip curve corresponding to a fast breaker It momentarily allows current above the threshold to pass for a short time leading to an increased modeled temperature For the limiter to disengage the current must reduce below the threshold to enable the breaker to cool down e Universal The universal profile models the time constant of the trip curve corresponding to a slow breaker It momentarily allows current above the threshold for a longer time leading to an increased modeled temperature For the limiter to disengage the current has to reduce below the configured current for the breaker to cool down The BEL can be configured via the PLM front panel and within the Lake Controller software 20 PLM SERIES Operation Manual rev 1 0 0 5 Operation and performance 5 3 5 Under Voltage Limiter UVL PLM devices are equipped with an under voltage limiter With mulitole powerful devices on a mains distribution line heavy current loads risk the reduction of voltage below that required for devices to function The UVL reduces the mains current draw when voltage drop below 80 V The amount of reduction applied increases as mains voltage drops towards 65 V then at 65 V the power supply is shut down The mains supply is continually monitored and when sufficient voltage returns the power supply automatically restarts 5 3 6
46. among the available outputs Toggle right among the available outputs O Disconnect all Dante assignments Turn Right to Route Turn Left to Un route Use the arrows visible on the display 2 3 6 7 to toggle between available sources and outputs Use the rotary encoder to select the output you want to connect to power outputs or Dante Selected output is marked with an X when routed and O when not routed Selecting 8 brings up a warning screen 7 11 4 Attenuation Submenu MENU gt ATTENUATION The default setting of 0 00 dB i e no attenuation is adjustable in 0 25 dB increments down to 100 dB Adjustment of attenuation at the input to the PLM power stage is available on a per channel basis This adjustment is the PLM equivalent of a conventional amplifier level control The power output channels may be turned down using these parameters before powering on or off Please refer to the signal flow diagram in Figure 6 2 By default all channels are deselected Press the SEL ALL button to select deselect all channel or press a single button on the right to adjust a channel individually Note Only ONE channel or ALL channels may be adjusted It is not possible to adjust only two or three ai channels 1 11 5 Frame Submenu MENU gt FRAME The Frame Menu provides information and options relating to the device PLM as a physical unit It is referred to as a Frame for consistency with Lake Controll
47. ase 2 and 3 and the last between phase 3 and 1 Each 30 A mains breaker is shared between two PLM s and the mains current is to some extent canceled This has the benefit that the three PLM s don t have to draw the same current one can be allowed to draw a little more than the other two The only limitation is that in combination they don t draw over 30 A 2 Two racks each with three 115 V version PLM s and a 30 A three phase mains supply One phase is used for each PLM within the rack This has the benefit that each PLM has its own breaker but they all have to operate within the same limit of 30 A therefore more care must be taken to ensure that no breaker blows if different loads are used 10 3 Gain Structure The PLM Series architecture provides gain adjustments at various points in the signal path and therefore enabling various places for muting and level adjustment Each mute or gain adjustment point serves a different purpose The signal flow diagrams in chapter 6 provide a useful reference for the signal path The following sections describe the various adjustment points all of which are available via the Lake Controller software 10 3 1 Input Headroom Analog Inputs Only Input Headroom should be set to 12 dBu if the source can be limited to 12 dBu otherwise it should be set to 26 dBu This setting does not affect the other gain stages or the overall noise floor it allows control of the appropriate headroom at the input stage o
48. aw and Dissipation Specifications PLM SERIES Operation Manual revi 0 0 T1 9 Appendix 9 5 Glossary of Terms Acronyms and Abbreviations The explanations given in Table 9 4 below are based on the specific use of each term in this manual The definitions are not intended to be exhaustive and many of these terms have wider meanings Description An analog balanced input or output is said to be floating when full electrical isolation exists between that input or output and the equipment connected to it Floating Transformer coupled inputs and outputs are inherently floating Electronically balanced inputs and outputs can never be truly floating though better designs such as that found in the PLM do mimic the characteristics of transformer coupled designs to a high degree Frame Lake terminology for a physical unit containing a Lake processing system i e a single LM 26 PLM PLM or legacy Lake Processor Frame ID An electronic identification label which can be given to each Frame in an amplification system Naming Frames in a large system is desirable as it simplifies identification in the Lake Controller Frame Preset Frame Presets are a class of Presets within the Lake processing system Up to 100 can be stored in the hardware device and each holds the complete configuration of all Modules and the Modules internal settings Gigabit Ethernet Describes the speed of Ethernet data transfer for devices t
49. be approved in the future Please refer to the Lake Controller Operation Manual for further information regarding the Analyzer plug in and associated functionality 2 2 5 Dante Audio Network PLM Series devices include Dante digital audio networking as standard Utilizing the latest advances in Ethernet technology Dante offers simplified system configuration and extremely low latency while delivering very high quality uncompressed digital audio across the Lake network The Zen automatic configuration feature enables plug and play setup without third party DHCP or DNS servers Dante is compatible with high bandwidth networks allowing large numbers of audio channels to be distributed alongside control and analyzer data PLM SERIES Operation Manual rev 1 0 0 T 3 Installation 2 3 Additional Documentation This document the PLM Operation Manual serves as the primary reference source for detailed information on the installation and operation of PLM Series Powered Loudspeaker Management systems It also provides detailed information on set up and configuration using the front panel interface If you intend to use the device as part of a networked system or access features via the Lake Controller please refer to the various supporting documents which can be located via these methods e Start gt Programs gt Lake Controller gt Documentation after installing Lake Controller software e On the included installer USB key or
50. cal Specifications in Section 11 for further details regarding ratings 9 Note If excessive current is indicated check the output cables and examine the loudspeaker If impedance appears normal you may rectify the condition by altering the ISVPL settings or lowering input levels CPL indication can be triggered by excessively low output impedance possibly the result of too many loudspeaker cabinets connected in parallel 5 3 3 Power Average Limiter PAL PAL activity is indicated by all four LED s to the left adjacent to the display flashing red together with a PAL ACTIVE warning message displayed on the screen A warning is also displayed on the Lake Controller software The Power Average Limiter Active warning PAL Active will be displayed when the power supply s maximum rated design parameters are reached When this warning is displayed gain limiting is being applied to the signal and the ISVPL threshold is lowered accordingly 5 3 4 Breaker Emulation Limiter BEL The PLM amplifiers are powerful devices that can draw a considerable amount of current from the mains supply The BEL models the temperature in the external breaker and limits the mains current to prevent it from tripping The BEL can be configured with both a breaker profile and a current value The current value can be set from 5 to 32 Arms There are three different profiles available for selection e Conservative The conservative profile
51. cations standards 10 7 Digital Clock Configuration 10 7 1 Digital Clock Overview In order to provide a flexible and robust audio processing system the device is equipped with a configurable digital clocking system The digital clock can generate various independent internal sample rates or can sync to an incoming AESS signal Figure 10 7 shows the various sample rates and options available INPUTS OUTPUTS INTERNAL AES1 AES2 gt DANTE INTERNAL 48 kHz 96 kHz 192 kHz PRIMARY CLOCK V HE AES1 AES2 MANUAL 48 48 kHz i Pwr Cc 96 kHz it SAMPLE RATE il CONVERTER tH 44 1 kHz Wy 88 2 KHz hi gt CLOCK y 176 4 kHz mm Channel 1 8 i 48 96 kHz MANUAL 44 INTERNAL Table 10 7 Digital Clocking System In Figure 10 7 each circled C represents a choice point A choice point is a user interface control that can be configured using the Lake Controller software Please refer to the Lake Controller Operation Manual for further information Note Figure 10 7 indicates internally generated clocks with base rate multiples of 44 1 kHz or 48 kHz 3 This should not be confused with the internal DSP sample rate of 96 kHz el The PLM digital clocking system can either generate its own internal clock or synchronize t
52. connect to individual Lake devices Each device connects to one port on the switch with its own cable thus the network looks like a star when drawn as a diagram with the switch at the centre Straight Network Cable A Cat 5 6 network cable with full pin to pin connections is called a straight network cable Lake devices can connect to a network using either straight or crossed network cables Subsystem It is possible when working with large networked systems to store selected components of the system into a Subsystem This is useful if working on a tour that encompasses both large and mid sized venues The same core Lake Controller data can then be used for a reduced number of Lake devices Super Module A Super Module is a virtual construct that can be realized within the Lake Controller allowing a set of Modules in different Frames to be treated as a single Module Switch Ethernet An Ethernet switch allows several Ethernet devices to be connected to a network using a star topology More intelligent than the earlier hubs which they now largely replace they route packets of data only to the units for which they are intended and also perform other system housekeeping and control functions System Preset A class of Preset within the Lake Processing system System Presets allow Module or Frame configurations and settings to be stored for the entire network of LM 26 Processors PLM Series PLM Series and other legacy Lake dev
53. describes a method for carrying two channels of periodically sampled and uniformly quantized audio signals on a single twisted pair cable 80 PLM SERIES Operation Manual rev 1 0 0 10 Application Guide The data format allows for auxiliary data which can be used for information on signal characteristics as well as the sampled audio data The physical interconnection as defined by IEC 60958 Type specifies three conductor 110 ohm twisted pair cabling terminated by an XLR connector Please refer to section 8 3 for wiring details AES3 provides for multiple sampling rates and resolutions of up to 24 bits this device accepts sample rates from 44 1 to 192 kHz 10 6 2 System Latency and Delay Compensation All types of digital audio processing inherently involves a small processing delay referred to as latency If the processing chain does not involve analog to digital or digital to analog conversion the amount of latency is usually very small and often may be disregarded However in complex systems involving multiple digital audio components and connections enough delay may be generated to cause audio phasing problems Therefore the lowest latency is always preferred and it is always important to consider system latency delays when calculating and adjusting overall delay for time aligning multiple loudspeaker systems 10 6 3 Connections and Cabling 10 6 3 1 AES Input Connectors Two AES 3 input signals each carrying two audio cha
54. dication will not occur when reaching the ISVPL threshold Please refer to section 5 3 for further information If CPL protection is active or a voltage clip occurs then the associated Power Output Channel LED will flash red and a text warning will be displayed on the screen 36 PLM SERIES Operation Manual rev1 0 0 7 8 5 2 Warning or Fault Indications 7 Front Panel Interface If certain parameters within the PLM approach or exceed preset limits a warning condition or fault condition may arise One or more LEDs provide a visual indication of the problem along with an on screen description of the condition displayed adjacent to the LED s e Agreen LED confirms inputs or outputs are unmuted and operating normally e A yellow LED signifies a warning of potential problems in the PLM amplifier stages e Ared LED indicates a fault clip or mute An Event Log file lists all warnings with date and time stamps please refer to the Lake Controller Operation Manual for further information the Event Log Please refer to Table 7 5 and Table 7 6 below and to Table 9 1 for a detailed description of faults and warnings 7 9 Warning and Fault Indications Table 7 5 lists the warning conditions signified by a yellow LED Table 7 6 lists the fault conditions signified by a red LED Warning arian Teni Event Log Text Amp Temp Limit Frame 1 ATL ACTIVE N A AES Clock Slipping Mo
55. dule 1 CLOCK SLIPPING AES Clock Slipping Amp Temp Warning Channel 5 8 TEMP WARN CH Temp Warning Amp Channel BEL Active Frame 1 BEL ACTIVE N A Controller Offline Frame 1 CTRL OFFLINE N A Device Name Conflict Frame 1 NAME CONFLICT Dante Device Name Conflict Frame Offline 1 OFFLINE Frame Offline Load Not Verified Module Channel AR LOAD NOT VER LoadSmart Load Not Verified Load Uncertain Channel 5 8 UNCERTAIN LOAD Uncertain About Load Type PSU Mains Glitch Frame 1 MAINS GLITCH Glitch on Mains Voltage Detected PSU Power Limit Frame 1 PAL ACTIVE N A PSU Temp Limit Frame 1 PTL ACTIVE N A PSU Temp Warning Frame 1 TEMP WARN PSU Temp Warning Power Supply Unit Sense Fault Frame 1 SENSE FAULT Frame Warning Sense Fault Speaker Cable Shorted Channel 5 8 SPKR SHORTED Speaker Cable Shorted Speaker Over Count Channel 5 8 OVER SPKR CNT Over Speaker Count Speaker Under Count Channel 5 8 UNDER SPKR CNT Under Speaker Count Speaker Damaged Channel 5 8 SPKR DAMAGED Speaker Component Damaged SpeakerSafe Not Started Channel 5 8 SPKSAFE INACT SpeakerSafe Not Started SpeakerSafe Precision Low Channel 5 8 LM PREC LOW Speaker Precision Low Frame 1 UVL ACTIVE N A C Under Voltage Limit Table 7 5 Warning Conditions Yellow LED PLM SERIES Operation Manual rev 1 0 0 37 7 Front Panel Interface Warning On Screen Warning Text Event Log Text
56. e all front panel controls except power state are disabled and all adjustment must be made via the network To lock controls press and hold button O then simultaneously press button as shown in Figure 7 2 repeat this process to unlock 1 Press Hold 7 3 Power Button The unit is powered on by pressing the top left button on the front panel labelled O in Figure 7 1 It has a bi color power symbol which illuminates red when connected to the AC mains and the unit is in standby mode It turns green when the button is pressed to turn the unit on A subsequent press of this button returns the unit to standby mode 30 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface 7 4 Mute Enable Button The dynamic function buttons to the immediate left and right of the LCD are used as MUTE buttons only when the MUTE ENABLE button is activated flashing When MUTE ENABLE is activated the MUTE ENABLE button will flash and the four buttons on the left act as Module or Input Router mute controls depending on active view and the four buttons on the right enable muting unmuting of the Amplifier Channel power outputs In Meter Mode gt Home View with MUTE ENABLE activated text on the LCD adjacent to each button indicates when a Module input or Amplifier Channel power output has been muted Meter Mode must be selected for MUTE ENABLE to be activated MUTE ENABLE is not available in Menu Mode To exit MUTE ENABLE m
57. e refer to section 7 11 3 1 for further details INPUT 1 2 INPUT O OLR OR AES EBU Figure 8 12 AES Inputs 8 4 RJ45 etherCON Network Connections Two RJ45 etherCON style network connections are provided as shown in Figure 8 13 IGbps PRIM ACT IGbps SEC ACT NG SWITCHED 100 1000 Base TX Dane Figure 8 13 etherCON Network Connectors The switched 100 1000 Base T network connections auto sense whether standard or crossover Cat 5e cables are in use The green ACT LED illuminates flashes to show network activity and when a 100 Mbps connection is present the orange LED illuminates static to indicate a 1000 Mbps connection Pre made cables with moulded RJ45 plugs are recommended If it is necessary to make up custom Cat 5e network cables use pinout described in Table 8 14 62 PLM SERIES Operation Manual rev 1 0 0 8 Back Panel Interface Pin No Color 1 Brown 2 Brown White 3 Green 4 Blue White 5 Blue 6 Green White 7 Orange C 8 Orange White j Table 8 14 RJ45 Wiring amp Pin Out Description Brown Brown White Green Blue White Blue Green White Orange Orange White Figure 8 15 RJ45 Wiring amp Pin Out Diagram When the device is connected to an active network the yellow LINK LED illuminates above the connector in use Data activity on the network is indicated by illumination of the green ACT LED It is normal for the AC
58. eaker s continuous and peak power capabilities Although the amplifiers attenuators can be used to reduce the overall gain an increase of the input signal can result in full output power which may cause damage to connected speakers Maintenance For safe and reliable operation the dust fi Iters on both sides of the front panel behind the grilles should be removed and cleaned regularly to ensure maximum airflow through the device Ifthe dust filters are not maintained there will be safety risks for example high internal temperatures could ignite the dust and start a fire There is also a risk that the unit will malfunction since it is dependent on constant airflow from front to rear If the dust fi ters are not clean and the unit malfunctions any resulting problems will not be covered by the warranty PLM SERIES Operation Manual rev 1 0 0 3 Table of Contents Table of Contents 1 Important safety instructions A A TN 2 A O TAO NT 2 MO a iaa 6 2d WEICOME lean dr a E O osas 6 2 2 Main ES A A AA IEA E AEE A A A A EE 6 2 3 Additonal DOCUMENTATION ini di 8 S Installation PEOPROUPPOOOOS5 CII E RNA 8 A A A TO 8 A O RN 8 A O ON 10 A A A O tous dedacarsuews ih canctedeasbiwsineses 10 ERRETO UTA a a A A AA A A aaa 11 4 Product OVEIViIEW ornitorrinco M2 Ase FRONT aI QVCMVIOW O RN 12 4 2 GAN PANE A A S 14 5 Operation and performance ccecesencecsncececccseccccsceccsceccesecceseceeseceesececsececseseccss
59. eceeseceess 16 a Operation precaUlOAS an tata A A coi 16 9 2 POWErQuiput REMOnnanGe is a ad 16 lo AS AAA ruPe Los fesess a a eens 18 ALOE SUPPIY AAA das vase dace A da AA EA i i 24 6 Signal Flow and Lake Processing ccecscececcecscees cdestodedacedavecaacseccsedevacddecsbecdavebecstacsaclO DAA ii ie 25 6 2 Level Adj stments S Mut POITE cc o 03c6dccade5 denaesdavdeassifedonssiasebasdaavecadssaees csvedeesdaveldasasbetsicabsieiehesbeadeiecbes 25 6 3 Lake Processing and COmtrol cfu tox Mus fice Woca taeda cts al lobe Sauce hoes ae Mott rh eS raul auegd A 26 6 4Modules BMG EMS NA tt Cea 27 6 3LOUdspeaker Processor VIEW ridad 27 6 6 Files and Presets a 28 7 Front Panelintertace o oo ccscicccacavsvaveacsdedsdecasecsdevsdavduce cosueueesscddackeivedetisavasdscechsecsaeuasasessnasedisl TA 29 2 FrontiPanel Key Lo a 30 1232 ROW a cosa dacs A A A A EA a aa a a E Ea 30 7 4 Mute Enable Button 31 eC OOOO meee OEE E HEHEHE HEE EEE EE EELS HEE EE HOSES EHS HERES TOSS EHS HERE HEE E HERES EEE EE HED E EEE SEED 4 PLM SERIES Operation Manual rev 1 0 0 Table of Contents PM idad 31 TETE AUNES AEA EEE dvi 31 T EXMP ON a age dt ds it AA a 31 8 Dynamic Buttons Controls and UEDS aaa 32 7 9 Warning and Fault INCIGATIONS da asdevwssvecesaisalevaeroeveddecdacedeceantavdesvaddacecacceusesleteclevwvurey 37 AS A 39 FAT Men Mode a dd 43 8 Back A scscacsvenscecssvesecwshuesecesseceieandbovtdascvssesesasavesrecsa
60. ed submenu by pressing the associated button 71 2 Warning Fault and Mute Indications Fault or warning conditions are indicated via the LEDs embedded in the dynamic function buttons a simultaneous description is shown adjacent to the button on the LCD The LEDs to the left of the LCD indicate problems with the PLM or its inputs while those to the right indicate problems with the power output channels Please note that the same LEDs also indicate the mute status of inputs left and outputs right Further information on faults and warnings is provided in section 7 8 5 and section 9 1 PLM SERIES Operation Manual rev 1 0 0 29 7 Front Panel Interface 71 3 Selecting a Module in the Lake Controller software via the Front Panel It is sometimes useful to identify which Module icon s in the Lake Controller software are associated with a particular hardware Frame To highlight the module in the Lake Controller software 1 Ensure Meter Mode is selected and in Module view 2 Press the button adjacent to the Module description on the left LCD The corresponding module will show highlighted text on the Lake Controller screen If the Frame is online but the Module is not in the work area the selected Module will be centered on the Module scroll bar assuming the Modules Menu is selected in the Lake Controller 1 2 Front Panel Key Lock It is possible to lock the front panel buttons for security purposes When this function is activ
61. eight Finish Approvals PLM 12K44 22 44 dB step size 0 1 dB Inf to O dB step size 0 25 dB 4 x 3 pin XLR electronically balanced 2x3 pin XLR Neutrik speakON 1 x NLT8 2 x NLT4 or 4 binding posts pairs 2 x RJ45 etherCON Via Ethernet for Lake Controller software or DLM the 3rd party protocol Neutrik powerCON 32 A Three fans front to rear airflow temperature controlled speed 2 5 inch Black white daylight readable LCD RGD LED s and detailed fault description on display 8 provided On Standby Enables muting of outputs and inputs via soft button keypad Toggles through meter views Provides a menu driven interface for full function front panel control Yes Provides a back function 100 240 V AC 45 66 Hz 70 265 VAC NEMA L5 30 Twist lock 125 V 30 A and CEE 7 7 Schuko 230 V 16A Yes Max 8 Ampere 0 98 Yes Configurable current threshold and breaker profile 25A Yes Yes Yes W 483 mm 19 H 88 mm 2 U D 424 mm 16 7 D 498 mm 19 6 16 5 kg 36 Ibs Black painted steel chassis with black painted steel aluminium front CE ANSI UL 60065 ETL CSA C22 2 NO 60065 FCC PSE ROM BIS India Note 1 Lab gruppen burst power 1 KHz 25 ms burst power 150 BPM 12 dB Crest factor gt 10 opyright 2014 Lab gruppen AB gt rights reserved specifications are subject to change without notice PLM 20K44 22 44 dB
62. er peak output voltage can still set the ISVPL threshold up to 600 V When a threshold is set above the maximum capability of a power output channel the maximum ISVPL for that product will be automatically set Therefore the ISVPL threshold can be in at the Module for the speaker s maximum capability and the Module file remains cross compatible with all PLM and PLM Series devices 5 3 2 Current Peak Limiter CPL The output Current Peak Limiter CPL ensures that the power output section will not be damaged by forcing it to deliver current levels at the outputs that exceed the maximum current ratings of the output transistors The CPL keeps the output transistors within their Safe Operating Area SOA The CPL is non adjustable CPL activity is indicated on the power output channel LED embedded in the associated output channel s function button to the right of the LCD Activity on an affected channel results in a flashing red indication together with a CURRENT CLIP warning message displayed on the screen adjacent to the LED A warning is also displayed on the controlling PC via the network PLM SERIES Operation Manual rev1 0 0 19 5 Operation and performance This condition indicates an attempt to draw excessive current at the output The output is attenuated until the output current falls below the maximum current rating Limiting is performed by the ISVPL limiter in conjunction with the selected ISVPL profile Please refer to the Techni
63. er terminology The Frame Label as defined in the Lake Controller is displayed in this menu It is also displayed at the top left of the screen in Meter Mode Home View 52 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface 1 11 5 1 Frame Info MENU gt FRAME gt FRAME INFO Frame Info provides information about the device settings and configuration All data in this front panel menu is read only some parameters are fixed and some can be changed only via the Lake Controller software Firmware Version FW Version The firmware version numbers are displayed on left side of screen This information can be used to verify that the latest firmware is installed and is useful if a technical issue arises Further internal version numbers are displayed on right side of screen Bundle DSP FPGA and Safe Image version Serial Number Serial No The printed serial number on the back panel of the PLM is also electronically embedded in the hardware and therefore cannot be removed or altered if stolen Max Output Voltage MaxOutVolt Displays the maximum output voltage per channel that can exist across the PLM s output terminals This is the absolute maximum not the voltage defined by the ISVPL setting 3 gt Note When Bridge Mode is activated double the channel output voltage is available Max Output Current MaxOutCurr Displays the maximum output current that can be delivered by the PLM summed across al
64. er to provide a comfortable margin of safety 10 6 4 External Signal Distribution Hardware 10 6 4 1 Distribution Amplifiers Dedicated distribution amplifiers for AES3 signals are available from several manufacturers The most common format is one input and six outputs Digital distribution amplifiers are designed to refresh or reconstruct the signal as well making up for line losses One type of distribution amplifier is a simple repeater which restores the waveform shape and brings the signal amplitude back up the required level Some distribution amplifiers also offer a re clocking feature which also re times the signal to prevent signal degradation from clocking errors known as jitter Distribution amplifiers that offer re clocking often make the feature optional as using re clocking can introduce small additional amounts of latency so should not be used unless necessary 10 6 4 2 Passive splitters One single AES3 input may be split into more signals using a simple passive splitter Splitters provide a convenient and low cost solution when only a few additional signals are required and in situations where cable lengths are short Attenuation is minimal but there is no refreshing of the signal 82 PLM SERIES Operation Manual rev 1 0 0 10 Application Guide 10 6 5 Additional Reference Material Complete technical information on the AES EBU AES3 standard can be downloaded from the AES web site at http Awww aes org publi
65. eter Mode pressing EXIT returns the metering display to the default Home View PLM SERIES Operation Manual rev1 0 0 13 4 Product Overview 4 2 Rear panel SH LABGRUPPEN eras e PLM12K44 0 e Li O The PLM is available with a choice of connectors for power outputs binding posts or Neutrik soeakON Both connection methods allow for Bridge Mode operation which is activated from the Lake Controller software Please refer to the Lake Controller Operation Manual and section 8 1 1 of this Operation Manual for further information on Bridge Mode O Binding Posts In this version the power outputs for loudspeaker connection are available on four separate pairs of fully enclosed binding posts Bridge Mode can be enabled via the Lake Controller software please refer to the Lake Controller Operation Manual for further information O speakON Connectors The power outputs are simultaneously
66. eur ais ment accessible 1 2 3 Caution To reduce the risk of fi re or electric shock do not remove screws No user serviceable parts inside Refer servicing to qualified service personnel Francais Pour r duire le risque d incendie ou de choc lectrique ne pas retirer les vis Aucune pi ce r parable par l utilisateur Confier Pentretien apersonnel qualifi 1 2 4 User responsibility Mains connection grounding Your amplifier must be connected to a grounded socket outlet Speaker output hazard on amplifiers Amplifiers are capable of producing hazardous output voltages To avoid electrical shock do not touch any exposed speaker wiring while the amplifier is operating The external wiring connected to the speaker terminals shall be installed by a qualified person or ready made leads or cords of appropriate capacity shall be used As the power output channels on amplifiers produce high voltage do not connect or disconnect speaker cables when the mains power is on 1 Important safety instructions Radio interference A sample of this product has been tested and complies with the limits for the European Electro Magnetic Compatibility EMO directive This equipment has also been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference from electrical equipment This product u
67. figuration or reduce nominal current and profile output power to avoid limiting i s Mains glitch missing cycles was Check mains distribution Warning Mains supply glitch MANS GENOH detected on the mains inlet connection Upgrade power Power supply firmware version not Upgrade amplifier Warning supply firmware VPGRADE PSU compatible with amplifier firmware Faul Need service NEED SERVICE 1 8 Power su internal error REEI CISTET DOS aut BRY cleared it needs service 3 Power supply detects mains voltage E MEENE Fault Mains voltage dueto MAINS gt 400 VPK above 400 volt peak Protective shut Check mains distribution 400 volt peak connection down auto restart attempt Power supply detects mains voltage Pen Fault Mains voltage above MAINS gt 270 V above operation voltage Protective Check mains distribution 270V connection shut down auto restart attempt Power supply detects mains voltage i AAA Fault Mains voltage below Mains lt 65 V below operation voltage Protective Check mains dis ribution 65 V connection shut down auto restart attempt Check mains distribution connection Restart Fault Power supply fault PSU FAULT Internal power supply fault ita itneeds service Power supply detects unstable mains i poal t Fault Check mains CHECK MAINS supply Protective shut down auto Check mains dis ribution connection restart attempt Too high output power for too low mains Improve mains supply Fault Power supply power protect PSU POWER PROT supply
68. h a sophisticated temperature sensing system which protects it from any overheating which may occur as a result of inadequate ventilation gt Note Always ensure the dust filters behind the detachable front panel are clean to ensure maximum 2 2 possible airflow 3 4 Operating Voltage The label adjacent to the mains AC input connector indicates the AC mains voltage for which the device is wired A and approved Both PLM models incorporate a universal power supply operating from 80 to 265 V Only connect the mains cable AC cord to an AC source of the voltage shown on the label The PLM uses primary switching which means the mains power is rectified on the primary side of the transformer This makes the power supply insensitive to mains frequency variation and it will operate normally on line frequencies from 45 to 75 Hz 10 PLM SERIES Operation Manual rev 1 0 0 3 Installation If the mains plug AC plug fitted to the mains cable AC cord is not appropriate for your country it can be removed and a locally sourced one fitted instead observing the color coding in the table below powerCON pin L Brown N Blue e Green Yellow Table 3 1 AC Plug Configuration Ne If you are not 100 confident of your competence to replace the mains plug AC plug the task should be carried A out by qualified personnel Once a suitable AC power supply is connected the device can be turned on using the
69. hat this sophisticated device provides seven points in the signal chain where the signal level can be adjusted muted or disconnected The blue sections represent Frame data and the red sections represent Module data please refer to the Lake Controller Operation Manual for further information Important information regarding correct setting of the gain structure can be found in section 10 3 Module Data stored in Module Flles Speaker Presets E Frame Data stored in System Files and Frame Presets Attenuator q A Mute a Po Ea arean oso ERSS Input Custom RPM A Attenuator FF Mute 3 P Boy LoadPilot Custom RPM Attenuator A Mute S Custom RPM Attenuator gee Mute a ad o apoen ots pat Custom RPM INPUTS Dante Receivers 1 8 AES 1 4 Analog 1 4 Input Routers 1 4 AES Analog pass through Output Routing WITH INPUT MUTES OUTPUTS Dante 1 8 no mutes 5 ES o VVVY Figure 6 1 PLM Signal Flow Diagram 6 2 Level Adjustments amp Mute Points Input Router Stage Input selection and MUTE 8 Input Mixer Stage Router on off connection to mixer and gain settings Module Input Stage Mute N A for LM Series Mesa Mode and gain settings O Module Output Stage Mute and gain settings Output Router Stage Output on off routing connections O Attenuat
70. hat transmit Ethernet frames at a rate of a gigabit per second as defined by the IEEE 802 3 2008 standard Hub A type of network interface device with multiple Ethernet ports Data arriving at any port is sent to all others Hubs have been largely replaced by Switches In Rush Current When power is applied to a piece of electronic equipment the initial current taken by the PSU can be very high as the various capacitors in the circuitry charge up this is called the in rush current In the case of power amplifiers which contain numerous very large capacitors the in rush current can be enough to blow mains breakers The PLM s PSU contains circuitry to control the in rush current to prevent this The amplitude of an audio signal at the point where it is applied to the input of the device or at the input of an intermediate stage within it An analog input signal Input Level level will be expressed in dBu s while a digital input signal level in dBfS dBs below digital clip level fS full scale Every item of equipment connected to an Ethernet network has a unique address called the IP address so that data gets to the correct place IP addresses are IP Address written as four groups of three decimal numbers between 0 and 255 In a system consisting of Lake Processors and a Lake Controller they are assigned and detected automatically IP Subnet Mask IP subnet masks are required in all IP networks The subnet is determined by
71. he LF profile is optimized for frequencies between 20 1200 Hz e MF The MF profile is optimized for frequencies between 300 6000 Hz e HF The HF profile is optimized for frequencies above 1 kHz 18 PLM SERIES Operation Manual rev1 0 0 5 Operation and performance Table 5 3 shows the theoretical maximum output power for a given load impedance and ISVPL setting 4 Note An ISVPL to load calculator that will assist in generating the appropriate ISVPL setting for a desired power load is available at www labgruppen com plm The ratings shown in the table below are limited by the CPL Current Peak Limiter functions not by ISVPL settings due to power output channel current capacity Ss Wi Max Sinewave Burst Power Watts Load Impedance ohms ISVPL SETTING V peak 181 4489 5993 4095 2048 1024 167 4489 5223 3486 1743 872 153 4489 4384 2926 1463 732 121 3660 2742 1830 915 458 101 2550 1910 1275 638 319 83 1722 1290 861 431 215 70 1225 918 613 306 153 56 784 587 392 196 98 47 552 414 276 138 69 38 361 270 181 90 45 C 17 8 79 59 40 20 10 F Table 5 3 ISVPL to output examples The ISVPL threshold may be set at any level between 17 8 V and 600 V via the PLM s menu system For further details please refer to section 7 11 2 5 of this manual and also to the PLM Series chapter in the Lake Controller User Manual PLM devices that have a small
72. he right hand soft function buttons showing steady red The adjacent fault message will show VHF FAULT It is also reported as a fault via the control network PLM SERIES Operation Manual rev1 0 0 23 5 Operation and performance 5 3 11 Short Circuit Protection A low impedance or short circuit at the power output terminals is detected when the output current is high Current Peak Limiter is active and simultaneously the peak output voltage is below a predetermined threshold When this situation occurs the output stage is muted to protect it from damage Operation of the short circuit protection system is indicated by an output channel LED in the right hand soft function buttons showing steady red The adjacent fault message will show SHORT CIRCUIT It is also reported as a fault via the control network to the Lake Controller software The presence of a short circuit or low impedance is re tested every six seconds and the output remains muted until the fault clears 5 4 Power Supply The R SMPS Regulated Switch Mode Power Supply is designed to keep supply voltage rails at optimum levels even when the mains voltage drops Mains voltages can drop as much as 20 below nominal before there is any effect on rail voltages Thus the R SMPS can deliver full rail voltage to the output stage at all times allowing the PLM to exhibit consistent transient response and a clean LF response PLM features a universal power supply with power fac
73. he value Parameters with only two states e g ON OFF are toggled by turning clockwise or counter clockwise Some parameters enable simultaneous adjustment of a combination of input and output channels To select which channels are adjusted 1 Press the associated soft button s to select the parameter s for editing A selected parameter is indicated by inverse text and background color 2 Use the rotary encoder to change the value It is possible to select multiple parameters for simultaneous editing even if the values are different on each channel Turning the rotary encoder will adjust each parameter by the same increment When in Meter Mode the rotary encoder allows the user to change between the available meter views Note Some menus permit parameters to be adjusted across multiple channels simultaneously by default 7 8 4 Dynamic Function Buttons The buttons surrounding the display are unlabeled because their functions change according to the currently selected menu or display In Meter Mode with MUTE ENABLE activated these dynamic function buttons are used to mute or unmute the Module Inputs and power output channels In Menu Mode these buttons are used to navigate the menu structure This is indicated by a thin line on the display closest to the button used During menu navigation the color of the embedded LEDs continues to indicate the mute status clips or faults and warnings relevant to the associated
74. ices Tablet PC Acompact PC which uses a touchscreen instead of keyboard and mouse The Lake Controller has been optimized for use on Tablet PCs Termination AES3 digital audio interconnections must be correctly terminated for reliable operation The 110 ohm terminations must be set on at the beginning and end of a set of daisy chained digital audio equipment and off at any intermediate ones Topology A mathematical word for arrangement or configuration The topology of a network is a means of visualizing the overall configuration of the network Universal Power Supply A power supply that operates in all countries without the need for manual adjustment as long as the voltage falls within the specified range for the device VHF Protection VHF protection is another amplifier safety circuit developed by Lab gruppen The presence of continuous HF audio can easily damage loudspeakers so the protection circuit monitors the output this muting the power output channel if necessary V peak Indicates the peak voltage of an audio signal For a sinusoidal signal the peak voltage 1 414 x the RMS voltage Vrms Not to be confused with peak to peak voltage written V pk pk which V peak x 2 Vrms The RMS voltage of a signal See RMS Wireless Access Point A device used to connect a computer to an Ethernet network without cables a radio transmitter receiver for data Wireles
75. ide data An overview is provided below for further information please refer to the Lake Controller Operation Manual 6 6 1 Module System and Sub System Configuration Files Module System and Sub System Configuration files are stored on the Lake Controller PC and data is passed across the network when recalling or storing these type of files e A Module file is the smallest set of data that can be stored and recalled it contains crossover gain delay and limiter information for an individual loudspeaker See Figure 6 1 A Module file may be recalled into other Lake devices It is not possible to store a Module File directly on the hardware device e A System or Sub System Configuration File contains a set of Module file information in addition to Frame related information such Group data and I O configuration see Figure 6 1 6 6 2 Frame and System Presets The entire processor configuration can be stored as a Frame Preset on this hardware device Presets can be recalled via the front panel refer to section 7 11 7 or via the Lake Controller software or Preset Manager utility presets can be stored using the Lake Controller software or Preset Manager utility A maximum of 100 Frame Presets can be stored on this device The data within a Frame Preset includes the configurations of all Modules in the Frame including levels crossover EQ input mixer routing and all other parameters As Frame Presets are stored in the hardware device
76. ienced adults or minors are using the equipment The US National Differences clause 16 3 requires that network cables must be flame rated VW 1 1 1 Approvals CE This equipment conforms to the requirements of the EMC Directive 2004 108 EC and the requirements of the Low Voltage Directive 2006 95 EC Standards applied EMC Emission EN55103 1 E3 EMC Immunity EN55103 2 E3 with S N below 1 at normal operation level Electrical Safety EN60065 Class Intertek U S safety standard ANSI UL 60065 and Canadian safety standard CSA C22 2 NO 60065 Intertek made the tests and they are a Nationally Recognized Testing Laboratory NRTL 1 2 Warnings 1 2 1 Explanation of warning symbols The lightning bolt triangle is used to alert the user to the presence of un insulated dangerous voltages within the unit s chassis that may be of sufficient magnitude to constitute a risk of electric shock to humans The exclamation point triangle is used to alert the user to presence of important operating and service instructions in the literature accompanying the product This equipment is tested and listed according to the 1 2 2 Warnings To prevent electric shock do not remove top or bottom covers No user serviceable parts inside refer servicing to qualified service personnel Francais A pr venir le choc lectrique n enlevez pas les couvercles Il n y a pas des parties serviceable a l int rieur tous
77. input or output channel on the PLM Note Each button contains a tricolor LED which conveys fault and warning indications in addition to F 3 the mute status The LED color does not necessarily correspond to the currently selected function PLM SERIES Operation Manual rev1 0 0 32 7 Front Panel Interface 1 8 4 1 Mute Functions The PLM provides mute functions at several different points in its audio chain Please refer to section 6 1 for further information The four types of mute are PLM Input Router Mute Module Input Mute Module Output Mute Power Output Mute Pon With the exception of Module output mutes all types may be controlled from the PLM front panel in Meter Mode by activating MUTE ENABLE and selecting the associated input or output Meter View using the METER button Module Ouput Mute is available in Menu mode Module gt Mute gt Note Module input and output mutes can be controlled in Menu Mode via the MENU button All mutes can also be controlled from the Lake Controller 7 8 4 2 PLM Input Router Mute The PLM Input Router mute provides the ability to simultaneously mute unmute all modules or outputs that are sourced from the PLM input To mute or unmute the PLM inputs 1 Press METER until the Input Meter View is displayed 2 Press MUTE ENABLE 3 Use the associated dynamic function buttons to mute unmute the PLM input router to the left Note The PLM
78. inuous power levels without thermal problems Front to rear airflow is preferable as air at the front of a rack is cooler than that at the rear in nearly all situations never attempt to reverse the airflow The operation of the PLM s cooling system is dependent on front to rear airflow it will not function effectively with external airflow in the opposite direction Make sure an adequate air supply is provided in front of the PLM and that the rear of the PLM has sufficient space to allow air to escape If the PLM is rack mounted never operate the unit with any front or rear rack doors A or covers in position It is recommended to keep the ambient temperature around the PLM as cool as possible An increased temperature can have a significant negative impact on the expected lifetime on the components inside the PLM 4 Note Fit solid blanks not ventilation blanks to unused rack spaces to ensure effective air circulation Leaving gaps in between items of equipment degrades the effectiveness of forced air cooling If installing one or more PLM Series devices in a rack with other fan cooled equipment be sure that all the A other equipment also uses front to rear airflow for cooling If this precaution is not observed there is a risk of overheating as units with the reverse airflow will be drawing in air which has already been heated by the PLM s 3 3 2 Temperature Sensing and Protection The PLM is equipped wit
79. io 5 2 Power Output Performance The PLM uses Lab gruppen s patented Class TD technology Tracking Class D in the output stages which couples the efficiency of Class D topologies to the sonic purity of Class A B designs The primary benefit is that Lab gruppen s Class TD works perfectly under all load conditions The output maintains its flat frequency response even into complex loads with very low nominal impedances Reliability is very high and there is no interference with nearby RF equipment Superior efficiency allows greater power density while minimizing cooling requirements yet sound quality matches that of the best Class A B designs 5 2 1 Symmetrical Power The PLM models can deliver power as shown in Table 5 1 when all channels are driven equally 2ohms 2 670hms 4ohms 8 ohms 16 ohms per channel per channel per channel per channel per channel Load Impedance ohms PLM 12K44 3000 W 3000 W 3000 W 1900 W 950 W PLM 20K44 4400 W 5000 W 4400 W 2300 W 1150 W Table 5 1 Symmetrical Load Power Ratings 16 PLM SERIES Operation Manual rev 1 0 0 5 Operation and performance 5 2 2 Rational Power Management Rational Power Management RPM is a unique Lab gruppen feature that allows for flexible allocation of power across channels of a PLM Power that is not used by one output channel is free for use by another output channel with greater demands RPM allocates powe
80. ion Stage Power output channel mute and attenuation settings O Amp Gain Stage Amplifier gain control Note If the required audio signal is not passing correctly verify the connection mute and gain settings at all seven stages PLM SERIES Operation Manual rev 1 0 0 25 6 Signal Flow and Lake Processing 6 2 1 Power Output Section Limiting and Sensitivity The Current Peak Limiter CPL dynamically limits the drive to the power stage based on three parameters sensed output current level feedback from the output stage and sensed voltage clip from the ISVPL This ensures that power output is maintained within the design limits of the PLM The adjustable Inter Sample Voltage Peak Limiter ISVPL sets the PLM s maximum output voltage and therefore also the maximum output power The ISVPL setting is made via MENU gt MODULE gt LIMITERS gt ISVPL and can also be set from the Lake Controller software The sophisticated output section monitors faults and generates warnings when appropriate warnings are displayed on the front panel of the PLM and also sent as messages over the control network In the rare event that maximum ratings are significantly exceeded the PLM will mute until the condition has been rectified or the incorrect setting has been readjusted Sensing circuits also transmit local output power stage temperature processor card temperature and PSU temperature to the appropriate protection circuits Please
81. ip 20 0 40 0 Nominal Noise 60 0 80 0 100 0 120 0 4 140 0 ISVPL Output dB dBu Analog AES Input Input Mixer Module In Module Out Amp Attenuation Analog Ref Amp Gain Table 10 4 Analog Low Noise with Limited Output Low Input Low SPL 78 PLM SERIES Operation Manual rev 1 0 0 10 Application Guide Figure 10 5 illustrates how to minimize absolute noise while achieving full power In this illustration it can be seen that there is no available headroom e Input Clip 12 dBu e Amp Gain 30 9 dB e SNR 111 3 dB e Absolute Noise Floor 68 4 dBu 80 0 60 0 40 0 20 0 0 0 5 Clip 20 0 40 0 Noise 60 0 80 0 100 0 120 0 4 140 0 dB dBu Analog AES Input Input Mixer Module In Module Out Amp Attenuation Analog Ref Amp Gain ISVPL Output Table 10 5 Analog Low Noise with Full Output Power Low Input High SPL Figure 10 6 illustrates how moderate noise with extreme SPL can be achieved SPL is extremely high in this example as maximum headroom is available at the input and within the processing stage This makes it possible to increase the average SPL by utilizing internal compression capabilities e Input Clip O dBFS e Amp Gain 35 dB e SNR 114 2 dB e Absolute Noise Floor 71 3 dBu 60 0 40 0 20 0 0 0 4 Cip 20 0 40 0 Nominal
82. ke MAX Peak and MAX RMS gain reduction Output 2 Output Label Output Gain Meter Lx Sum of Lake MAX Peak and MAX RMS gain reduction O Output 3 Output Label Output Gain Meter Lx Sum of Lake MAX Peak and MAX RMS gain reduction Output 4 Output Label Output Gain Meter Lx Sum of Lake MAX Peak and MAX RMS gain reduction Current View title amp Frame label Frame faults and warnings 7 11 Menu Mode 711 1 Overview The majority of functions can be accessed via Menu Mode on the front panel These functions include the adjustment of gain delay limiters inout and output routing and the ability to recall Frame Presets Menu Mode can be accessed at any time by pressing the MENU button After pressing the MENU button various submenu options are displayed as shown in the figure below Frame Module Frame Prst MUTE METER FO Config Load Mon MENU attenuats W Figure 7 13 Menu Mode gt Main Menu Press the illuminated button adjacent to the required option to display an associated submenu When parameter level is reached individual parameters may be selected for adjustment by pressing the adjacent button The selected parameter value s are highlighted and are adjustable using the rotary encoder A parameter may be adjusted simultaneously across multiple channels by selecting all values to be adjusted any current value offsets are retained Some parameters default to multiple selections with all inputs
83. l input redundancy 4 input mixers Comprehensive 3rd party protocol over UDP Ethernet Yes Yes Yes 8x8 Flexible topology Supports Dual redundant networks 48 96 kHz Uni Multicast 0 25 0 5 1 0 2 0 5 0 ms 100 4 AES inputs 44 1 48 88 2 96 176 4 192 kHz up to 24 bits 0 00003 4 high quality inputs with Iso Float ground isolation 26 dBu 21 dBu 96 kHz 24 bit 20k 10kohm 0 00022 0 00033 17 8 194 V step size 0 1 V 67 A peak 33 Arm Yes Yes PLM SERIES Operation Manual rev1 0 0 85 11 Technical Specifications Gain Amplifier gain Analog attenuator Rear panel interface Analog inputs AES inputs Output connectors Auto 100 1000 Auto Uplink Control and monitoring interface Detachable mains cord Cooling Front panel interface Display Fault Warning Limit Clip indicators Mute and soft function buttons Standby Power button Mute Enable button Meter button Menu button Rotary Encoder Exit button Mains power Nominal voltage Operating voltage Mains wall plug Power supply features Soft start Inrush power Power Factor Correction PFC Regulated switch mode power supply Breaker Emulation Limiter BEL BEL max current threshold Power Average Limiter PAL Under Voltage Limiter UVL Mains under voltage and overvoltage protection and mains glitch tolerance Dimensions Rack rail to rear panel Overall depth including handles and rear support W
84. l output channels 7115 2 Frame Reset and Configuration MENU gt FRAME gt RESET Use this option to display a further menu with options to reset all parameters back to their original factory default values See section 9 3 for a full list of the default factory reset parameter values Two types of reset are provided Factory Reset and Soft Reset Factory Reset A Factory Reset will reset all settings and parameters to the original factory defined default values This includes the deletion of any Frame Presets stored within the device It also resets the IP Address and all network related settings including the Dual Redundancy setting a hard power cycle is required to complete this reset Soft Reset A Soft Reset will reset all settings and parameters to the original factory defined default values but retains Frame Preset information and IP Network configuration A power cycle is not required to complete this type of reset PLM SERIES Operation Manual rev1 0 0 53 7 Front Panel Interface 1 11 5 3 Breaker Emulation Limiter MENU gt FRAME gt BEL CONF The Breaker Emulation Limiter BEL provides Ampere selection 5 32 A and breaker type selection CONSERVATIVE FAST and UNIVERSAL Select by pressing the adjacent button then use the rotary encoder to change the parameter The maximum RMS input current varies between the 12K44 and 20K44 therefore a desired value is configured and the actual value is displayed within brackets
85. le input mutes but instead of the PLM power output channel mutes it provides the ability to mute the Lake Module outputs Press the associated dynamic function button s to select the Module input s and or Module output s to be adjusted Use the rotary encoder to toggle between the MUTED and UNMUTED states 48 PLM SERIES Operation Manual rev1 0 0 7 Front Panel Interface 711 3 1 0 Configuration MENU gt I O CONFIG AES Term 1s0 Float METER Input Rtr Output Rtr MENU Figure 7 17 1 O Configuration Sub Menu This menu provides configuration options for input routing along with settings for AES Termination and Iso Float as described in the following sections 7 11 3 1 Input Router Configuration MENU gt I O CONFIG gt ROUTER INPUT RTR ROUTER 1 Prio 1 0 00 dB Prio 2 Dante 5 0 00 dB oJ METER AES 1 0 00 4B Prio 4 MENU Analog 1 26 00 dBu Figure 7 18 Input Router 1 The signal flow diagrams in chapter 6 highlight that there are four Input Routers available on PLM Series devices The input that is selected within the router can be used by the Input Mixer for any of the modules Each router has four priority levels allowing any input to be placed in a sequence providing automatic input signal fail over Dante and AESS inputs have priority over analog inputs Note Only one analog input is allowed in each router and the analog input must be at the lowest priority level in relation to any
86. lifier is reducing output power Improve cooling or reduce Warning Toes ee ie PTL ACTIVE to avoid power supply temp output power to avoid B 7 fault protection limiting Amp chanel Amplifier channel is reducing output Improve cooling or reduce Warning Tem CR imi ATL ACTIVE power to avoid amplifier channel output power to avoid P 7 temp fault protection limiting Fault Temperature faul TEMP FLT PSU Power supply temperature reached Automatically restarts power supply internal protection limit when cooled down Temperature faul DSP area reached Improve cooling or Fault DSP area AS critical temperature reduce power J PLM SERIES Operation Manual rev1 0 0 69 9 Appendix Category Type On screen text Description PSU The Under Voltage limiter is active as the mains supply is approaching the lower Increase mains distribution Warning Under Voltage Limit UVL ACTIVE end of the device s operational voltage stiffness or reduce output Output power is decreased to ensure power to avoid limiting mains distribution does not collapse Amplifier is reducing output power due Warning Power Average Limit PAL ACTIVE to average power or mains current Actes output Powe E to avoid limiting draw is above safe operating levels Improve mains distribution Power supply is reducing mains current and update BEL Warning Breaker Emulation Limit BEL ACTIVE draw to stay within BEL configured con
87. mmon method of joining pins 1 and 3 together in the XLR However if only a single core unbalanced cable is available the method shown in Figure 8 15 may be used SCRN Unbalanced Output Balanced Input Typically phono XLR Figure 8 11 Unbalanced Analog Wiring and Pin Out 8 2 4 lso Float Electronic Balancing The analog input electronic balancing circuits use the Lake Iso Float system The Iso Float technology combines the benefits of transformer coupled isolation with the advantages of clean direct coupled inputs The audio converters are galvanically isolated and not connected to the main ground High quality transformers and opto isolators create a barrier between the device and possible grounding aberrations from the outside electrical environment Iso Float settings are adjustable via the front panel menu or the Lake Controller software PLM SERIES Operation Manual rev1 0 0 61 8 Back Panel Interface 8 3 AES3 Digital 1 0 8 3 1 AES3 XLR Connector AESS digital audio input is via two XLR3F connectors Connectors are provided for Inputs 1 amp 2 and Inputs 3 amp 4 Wiring of this connector follows the same standard as for analog XLR connections as shown section 8 2 2 The AESS signal format carries two channels of audio and associated data on a single cable connector Selection of input channels is performed within the digital processing section of the PLM and is controlled from the menu system Pleas
88. n 7 11 5 e Frame Information e Frame Reset e BEL Configuration e Network e Latency Match e Front Panel e FRAME PRESETS See section 7 11 7 e Preset Recall 44 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface e LOAD MONITOR See section 7 11 8 e Configure No of Cabinets in Parallel e LoadSmart Verification e Estimated No of Cabinets 7 11 2 Module Submenu Only module output channels for routed Power channels are displayed This applies to all module output configurations described below MENU gt MODULE After selecting the Module Menu the screen shown in Figure 7 14 is displayed Press the illuminated button adjacent to the required option to view or edit the associated parameters MEMU MODULE input Mixer Amp Gair MUTE f N yy cain Limiters METER Detay MENU Potas ty Figure 7 14 Module Submenu 7 11 2 1 Input Mixer MENU gt MODULE gt INPUT MIXER Press the illuminated button next to Input Mixers A D Selected mixer will show four Routers 1 4 adjacent to the right hand buttons Use buttons to select Router s and use the rotary encoder to change level values within defined limits to configure the mixer Multiple Routers may be selected simultaneously INPUT MIXERANPUT MXR A MUTE METER MENU Figure 7 15 Input Mixer PLM SERIES Operation Manual rev 1 0 0 45 7 Front Panel Interface 7 11 2 2 Gain MENU gt MODULE gt GAIN MENU MODULE
89. n brackets and can be limited by the maximum voltage a particular PLM Series model can produce and or by the RPM Power allocation algorithm If RPM is active RPM will be displayed next to the Actual ISVPL values Inter Sample Voltage Peak Limiter Profile ISVPL Profile Selecting the ISVPL Profile will optimize the ISVPL limiting for the specific frequency band ISVPL Profile permits individual adjustments per channel between six profiles providing appropriate attack and release times for the ISVPL Limiter and Voltage Clip feedback to either minimize distortion or maximize SPL as described below Universal Inter Sample Optimized for low distortion usable for all frequencies Sub LF Inter Sample Optimized for higher SPL below 600 Hz usable for all frequencies Sub Optimized for high SPL 20 200 Hz LF Optimized for high SPL 20 1200 Hz MF Optimized for high SPL 300 6000 Hz HF Optimized for high SPL gt 1 kHz DARON The default ISVPL Profile is UNIVERSAL MaxPeak Level MaxPeakL vi This sets the maximum peak signal level at the Module outputs It is adjustable from 30 dBu to 30 dBu in 0 1 dB increments subject to user defined level limits The Group total is displayed in brackets for each channel PLM SERIES Operation Manual rev1 0 0 47 7 Front Panel Interface MaxRMS Level MaxRMSL vl This sets the maximum RMS signal level at the Module outputs It is adjustable from 30 dBu to 30 d
90. nd limited drivers in a multi way system Using this data and a brief test signal LoadSmart compares actual response to predicted response identifying any malfunctioning components or connection errors During the performance PLM monitors real time voltage current draw and temperatures of the PLM amplifier stages as well as the power supply This allows operators to avoid power compression and identify potential problems Please refer to the Lake Controller Operation Manual for detailed information on PLM Series load verification and real time performance monitoring functionality 2 2 3 Lake Processing and Controller PLM Series devices integrate seamlessly into the Lake Processing environment and are accessible via the Lake Controller software Processing modules offer precise settings for gain delay crossover settings equalization and limiting Lake processing features incorporated in each module include Raised Cosine Equalization linear phase crossovers and LimiterMax loudspeaker protection Please refer to the Lake Controller Operation Manual for further information 2 2 4 Analyzer Plug in Lake Controller software provides integration with third party real time analyzers providing simultaneous measurement display and EQ adjustment via the Lake Controller Approved analyzers include Rational Acoustics Smaart 7 SysTune from AMFG and WaveCapture Live Capture Light or Live Capture Pro additional third party analyzers may
91. nd performance This protection system recognizes only continuous VHF signals at high levels that will not appear in speech or music Any such content can therefore be considered as a fault condition VHF protection is essential to avoid damage to HF drivers VHF protection is dependent on a combination of output power level and frequency Figure 5 4 shows a decreasing power threshold from approximately 10 kHz upwards which illustrates increasing sensitivity of the protection system with frequency When continuous output power above the threshold line is detected VHF protection becomes active Trigger voltage Voltage Vrms 0 5 10 15 20 25 30 Frequency kHz Fig 5 4 VHF Protection Frequency Sensitivity The attack time of the VHF protection circuitry also changes with frequency becoming shorter at higher frequencies This is shown in Figure 5 5 Full output voltage 1400 1200 1000 o S 6 2 3S r Time ms 400 20 200 0 5 10 15 20 25 30 Frequency kHz Fig 5 5 VHF Protection Attack Time Variations The VHF protection circuit is NOT a limiter and does not alter the PLM s frequency response It is implemented solely to detect continuous VHF content HF content of normal music or speech signals at peak levels will be passed in full Operation of the VHF protection circuits is indicated by one or more of the output channel LEDs in t
92. nect further devices Lo is termed a loop thru MAC Add In addition to an IP address every device on an Ethernet network has a MAC address This address is fixed at the time of manufacture and is effectively the ress permanent identifier of the physical unit MAC stands for Media Access Control MaxPeak Lake s LimiterMax provides independent dynamics control over signal peaks MaxPeak and the average signal level MaxRMS Module The term used in the Lake Controller to describe the virtual set of signal processing that routes an audio input to the various frequency weighted outputs of a crossover The processing system within the device allows for two Modules each of which may be assigned a range of crossover configurations input sources etc Module Preset A class of Preset within the Lake processing system A Module Preset Module file contains all the configuration data and settings for one Module and is saved in the Lake Controller software not in the hardware device 12 PLM SERIES Operation Manual rev 1 0 0 9 Appendix Description Offline A device on an Ethernet network which is not communicating with the rest of the network either due to a fault or intentionally is said to be offline Online A device on an Ethernet network which is fully operational and communicating with the rest of the network is said to be online PAL An abbreviation for Power Average Limiter PAL is proprietary Lab gruppen ci
93. nly To adjust navigate to I O CONFIG gt INPUT CONFIGURATION in the Lake Controller Please refer to the Lake Controller Operation Manual for further details 10 3 2 Input Mixer Input Mixer gains can remain at 0 00 dB for most configurations if only one input channel is used per Module the other can be set to INF To adjust navigate to I O CONFIG and tap the Input Mixer blocks for the Module in the Lake Controller Please refer to the Lake Controller Operation Manual for further details PLM SERIES Operation Manual rev1 0 0 19 10 Application Guide 10 3 3 Module Input Gain Input Gain is used to adjust the level between different speaker cabinets in the system This gain can remain at 0 00 dB unless a lower level is required for the cabinet s driven by this Module To adjust navigate to MODULES gt EQ LEVELS gt LEVELS in the Lake Controller Please refer to the Lake Controller Operation Manual for further details 10 3 4 Module Output Gain Factory and User Gain are provided for each Module output These two stages provide a level of security and control for the system designer Factory and a further level of adjustment for the user User both of which combine to balance the level between frequency bands in a multi way crossover Contour configuration or the Module output level Mesa configuration 1 Factory Gain is set by the system designer and can be hidden within the Module file The Factory Gain parame
94. nnels are connected to the XLR3F connectors labelled INPUT 1 2 and INPUT 3 4 in the AES EBU AES 3 input section on the rear panel Note that the Input connector types are identical for the analog and digital inouts so care must be taken when connecting audio particularly when analog inputs are used as a backup signal source Connectors should be clearly labeled to prevent any confusion Note Never connect a digital signal source to an analog input or an analog signal source to a digital m input 10 6 3 2 Interconnection of Multiple Units The AES implementation in PLM is designed to be able to daisy chain AES signals using passive Y Split cables The PLM device at the end of a distribution line should be set to TERMINATED all other PLM devices should be set to UNTERMINATED If an AESS distribution amplifier DA is being used to distribute the digital audio signals with one DA output per processor then all terminations should be on However if the AES3 is daisy chained only terminate the last processor in the chain Please refer to section 10 6 4 for further information PLM SERIES Operation Manual rev1 0 0 l 10 Application Guide 10 6 3 3 Cable Types and Distance Limitations All digital connections should be made with 100 ohm balanced cables wired according to the AES3 standard see Section 8 2 2 Although standard analog microphone cabling may function in limited circumstances the potential for problem
95. nt of the rack to accommodate the handles and at the rear to accommodate connectors and cables allowance must be made for cable or loom bends within a rack 8 PLM SERIES Operation Manual rev 1 0 0 3 Installation 3 2 1 Rear Mounting Two rear support brackets along with associated mounting hardware are included with the PLM as shown in Figure 3 1 it is recommended that these are used wherever possible Fit the brackets to the vertical rails at the rear of the rack Figure 3 2 and Figure 3 3 show the fitting options for fixed and removable installation The support brackets are reversible and may be fitted to point either to the front or rear of the rack the orientation used depends on the rack depth and position of the rear rack rails Two mounting methods are possible note that the method shown in Figure 3 2 additionally provides extra security against unauthorized removal For situations where rapid removal and replacement is required the method shown in Figure 3 3 should be used Fig 3 1 Rear support bracket with mounting hardware Orme Fig 3 2 Rear support bracket mounted for Fig 3 3 Rear support bracket mounted for fixed installation and bracket pointing forward removable installation and bracket pointing back PLM SERIES Operation Manual rev 1 0 0 9 3 Installation 3 3 Cooling 3 3 1 Overview The PLM Series devices use a forced air cooling system with airflow from front to rear allowing high cont
96. o an Ethernet control network which may include other Lake Processors and the Lake Controller software Network connection permits full control of all functions along with real time metering from a remote position This device supports the Dante audio networking protocol which allows transmission of multichannel high definition digital audio over the same Ethernet connection Use the primary connector when using a star network topology consisting of individual Cat 5e connections between the devices and an Ethernet switch Alternatively this connection can be used to daisy chain directly to another Lake Processor The daisy chain topology should not be used with Dante For a technical reference to the Ethernet Port please refer to section 8 4 Additional information is also available in the Lake Network Configuration Guide 21 Note The Ethernet ports operate at the Ethernet data rate of up to 1 Gbps and allow straight or crossed network cables LEDs above each port indicate network activity ACT and Gigabit network connections Gbps If Gbps LED is unlit speed is 100 Mbps gt Secondary Connector The secondary network connector can be used to daisy chain multiple LM PLM PLM or D Series devices Alternatively a Dante dual network topology can be created by connecting all secondary network connectors to a separate Ethernet switch ensuring full redundancy in the event of a network component failure Note Addi
97. o an incoming external clock source via the AESS digital input PLM SERIES Operation Manual rev1 0 0 83 10 Application Guide 10 7 2 Clock Source Priorities There are two options for clock source configuration Manual Configuration or Automatic Detection For Manual Configuration the selected internal or external clock source remains fixed regardless of whether a compatible clock signal is preset For Automatic Detection the most appropriate clock matching the selected base rate is automatically selected according to the following priorities 1 AES1 Input 1 2 2 Internal Clock When using automatic detection the AES3 digital input is monitored and will switch the clock source back and forth depending on the availability of an AES3 signal Please refer to the Lake Controller Operation Manual for additional information 10 7 3 Dante Clock Configuration Dante uses its own digital clocking technology across the Ethernet network to ensure that all Dante devices are synchronized As part of this logic an order of priority is defined to identify which device becomes the Dante Master A Dante capable device set as Preferred Clock Master is chosen as the highest priority followed by a device with a valid AES3 signal then an internally generated clock Dante only operates at 48 kHz or 96 kHz with the PLM digital clock on all Dante Slaves being overridden by the Dante Clock The front panel Input View indicates if that device
98. ode press the flashing MUTE ENABLE button If no mute activity occurs for two minutes MUTE ENABLE mode will automatically be disabled 7 5 Meter Button The front panel display has two main operating modes Meter Mode default and Menu Mode In normal operation the display will be in Meter Mode The following views are available in Meter Mode Home View default Amplifier View LoadPilot View Temperature View Input View and Module View Pressing the METER button scrolls through these views Pressing the METER button when in Menu Mode will return the system to Meter Mode with the Home View displayed 7 6 Menu Button Menu Mode is selected by pressing the MENU button The screen displays the top level menu with various submenu options Press the button adjacent to the required submenu to select it Pressing the MENU button while in Menu Mode will display the previous menu level Menu Mode is used for processor configuration or for editing a parameter Please refer to section 7 11 for further details 7 7 Exit Button In Menu Mode pressing the EXIT button B returns back one menu level In Meter Mode pressing EXIT returns the display to the Home View PLM SERIES Operation Manual rev1 0 0 31 7 Front Panel Interface 7 8 Dynamic Buttons Controls and LEDs MUTE ENABLE METER MENU Figure 7 3 LCD with Dynamic Buttons Controls and LEDs 7 8 1 Communication LED This bright white LED signifies
99. ont panel menu for placement at the bottom The following indications as active or applicable also are shown on the menu bar Q AES3 Input Terminated no icon Unterminated Analog Inputs Iso Float Grounded no icon Floating Dante Clock Master no icon Dante Slave or Dante Disabled O Dante Slave Only no icon device may be used as Dante Clock Master REDUNDANT Dual Redundancy networking enabled No icon configured for switch mode Please refer to Table 7 5 and Table 7 6 for full details on the faults and warnings that could be displayed in any of the above locations PLM SERIES Operation Manual rev1 0 0 99 7 Front Panel Interface Note Output limiter gain reduction meters take into account the sum of PLM ISVPL and Lake LimiterMax The icons in the center of the LCD indicate the amplifier channel to which each module output is routed When two amplifier channels are Bridged both channels will be displayed The type of icon used in the center of the screen confirms whether the PLM outputs are configured in Standard mode or Bridge Mode as shown in Figure 7 8 For further information on Bridge Mode please refer to section 8 1 1 STANDARD BR Figure 7 8 Standard and Bridge Mode Front Panel Icons Bridge Mode is visible via this icon notation on the PLM Front Panel in Home View however the Lake Controller must be used to configure Bridge Mode please refer to the Lake Controller
100. ontinue LoadSmart performs a rapid test of all output channels and displays the results on the LCD a few seconds later MENU LOAD MON Results Figure 7 23 LoadSmart Verification Results Screen The Load Results page provides three items of information per output channel e Confirmation that the speaker connected matches the speaker fingerprint assigned to the channel If no Fingerprint is assigned NO MODEL will be displayed If the wrong speaker is connected Wrong Speaker will be displayed e Result of speaker cabinet count this will either be OK or WRONG e Estimated number of speakers connected to the channel 56 PLM SERIES Operation Manual rev 1 0 0 8 Back Panel Interface 8 Back Panel Interface An overview of the back panel interface is provided in section 4 2 This chapter describes each cluster of connections as shown in Figure 8 1 0 ED s pe E LABGALIPPEN E e O M12K44 e lake cha PIN LSCRN 2 POS xec U O ANALOGWITH sO FLOAT SWITCHED 100 1000 Base TX LJ IRING Made in Sweden Must be grounded earthed Espana BRIDGE o NN
101. or to the Home View Module input meters Module Input Mixer Routing as well as Input Connection status Figure 7 11 Meter Mode gt Input Meters View Input Router 1 Selected input type input gain level relative to clip router fault warning clip 8 Input Router 2 Selected input type input gain level relative to clip router fault warning clip Input Router 3 Selected input type input gain level relative to clip router fault warning clip O Input Router 4 Selected input type input gain level relative to clip router fault warning clip 9 Module A Input Mixer Module A input level meter Input 1 Connection Status Module B Input Mixer Module A input level meter Input 1 Connection Status Module C Input Mixer Module A input level meter Input 1 Connection Status Module D Input Mixer Module A input level meter Input 1 Connection Status Current View title amp Frame label Frame faults and warnings 7 10 5 Module Meters View Module View provides further signal level information in the form of additional power output meters as shown in Figure 7 12 MUTE METER MENU Figure 7 12 Meter Mode gt Module Meters View O Module A label and input gain meter 8 Module B label and input gain meter Module C label and input gain meter O Module D label and input gain meter 42 PLM SERIES Operation Manual rev1 0 0 7 Front Panel Interface Output 1 Output Label Output Gain Meter Lx Sum of La
102. other inputs Two modes of input selection are available Auto Select and Forced Selection The selected setting is also visible from the I O STATUS screen on the front panel and via the Lake Controller In Auto Select mode Priority 1 is checked for a valid input signal if no signal is found Priority 2 is checked and so on until a valid signal is located this process occurs if the currently selected input fails In Forced Selection mode one of the four priorities is fixed regardless of whether a valid signal is present PLM SERIES Operation Manual rev 1 0 0 49 7 Front Panel Interface With a router selected on the front panel press the middle button on the left of the LCD to activate this parameter for editing Use the illuminated rotary encoder to scroll through the following options e Auto Select default e Force Priority 1 e Force Priority 2 e Force Priority 3 e Force Priority 4 Assignment of Input Priority Factory default settings assign Dante 1 4 to Priority 1 Dante 5 8 to Priority 2 AES3 1 4 to Priority 3 and Analog 1 4 to Priority 4 For example for Input Router 1 Dante 1 on Prio1 Dante 5 on Prio2 AES3 ch1 on Prio 3 and Analog 1 on Prio 4 To change these settings via the front panel select Priority slot number to be changed and use the rotary encoder to scroll through the available options Due to the signal hierarchy it is not possible to assign an analog source to a higher priority than a digital source
103. output power to avoid Warning channel critical temperature temperature becoming critical a Amplifier channel has reached Automatically unmutes Fault Temp Fault amplifier channel eM EO internal protection limit when cooled down Service channel SERVICE CH Amplifier channel is damaged Restart device 1 not Fault j P 9 cleared it needs service Fault Very high frequency fault VHF FAULT Amplifier channel protection Check input signal Clip Current average limiter CAL ACTIVE Average current on amplifier Reduce output power above safe operating level to avoid limiting Clip Current clip CURRENT CLIP Amplifier channel reached Reduce output power current limit to avoid limiting o 3 da as Reduce output power Clip Voltage clip VOLTAGE CLIP Amplifier reached voltage limit to avoid limiting 7 7 Review gain structure Clip Module clip MOD CLIP Module output signal clipped Module gain vs AmpGain SIGNAL Input router has no valid Review input router Fault No input ource NOU input source settings connections F The signal on the analog AES input Lower the signal on the Clip Analog AES input clip INFUT CLIE is above inputs capability feed to the amplifier Ne J Table 9 1 Warning Fault and Mute Indications alphabetical by LCD Text Event Log Text PLM SERIES Operation Manual rev1 0 0 67 9 Appendix 9 2 Maintenance During normal operation this devices provides trouble free service If the LCD or front panel display requires cleaning
104. output voltage of 194V PLM SERIES Operation Manual rev1 0 0 17 5 Operation and performance CAFE with ESP CAF Configuring Amplifiers For the Environment is a dedicated software application for Windows and OSX that provides tools for system planning specification and commissioning CAF incorporates the Equipment Specification Predictor a software module that examines SPL and speaker requirements for a project and generates requirements for output power on an amplifier and system level For more information on CAF and ESP please consult the documentation supplied with the CAF software download 5 3 Amplifier and Load Protection Systems The PLM is equipped with a comprehensive set of protection circuits If operating conditions become sufficiently extreme that any of these circuits become active indication is provided by LEDs in one or more soft function buttons 5 8 together with adjacent warning text In addition to this notification is also presented within the Lake Controller software and within system log files 5 3 1 Inter Sample Voltage Peak Limiter ISVPL The ISVPL is a high quality voltage limiter that can deliver seamless limitation to any desired level Its ensures that the voltage at the output terminals never exceeds the defined threshold It operates on these principles e The signal is delayed slightly to allow the ISVPL to look ahead and reduce the gain before voltage in excess of the threshold can appear
105. r up to the total limits of the specific amplifier model RPM exists in two modes See the image below E 3000 W Figure 5 2 PLM 12K44 Amp channels power adjusted to match the loudspeaker requirements Auto RPM The frame will automatically allocate power per output channel according to the ISVPL settings in the speaker preset per module output in Lake Controller If the ISVPL settings taken together allow total output higher than the capabilities of the amplifier RPM will reduce the ISVPL limiter thresholds evenly based on a proportional reduction in dB When RPM is active an RPM icon will be displayed next to the Actual ISVPL values in the Events 8 Control section If actual ISVPL is above the normal platform maximum and equals speaker threshold the RPM indicator will be green If actual ISVPL is above normal platform maximum but below speaker threshold the RPM indicator will be yellow Q aa o e ee ne Custom RPM The CAF software allows users to create an advanced custom power allocation scheme Switching to Custom mode disables the Automatic mode When RPM is active an RPM icon will be displayed next to the Actual ISVPL values in the Events amp Control section Please find more information about this in documentation supplied with the CAF software download RPM limitations PLM 20K44 allows all four channels to deliver Channel Max output voltage of 194V PLM 12K44 allows two channels to deliver Channel Max
106. rcuit which provides additional amplifier protection The PAL ensures that the power drawn by the PSU from the AC mains does not exceed the mains breaker ratings Parallel Two or more e g inputs which are wired together so that all inputs are connected to the same source are said to be paralleled Signal levels will be reduced if too many inputs are paralleled in the case of AES3 this may result in a complete loss of audio Parameter Any control function which can be adjusted by the user to one of several different values is termed a parameter For example input level gain delay and limiter threshold are all parameters Pass Through Cable See Straight network cable PFC Power Factor Correction PFC reduces current peaks on the lines and reduces the requirements placed on the mains distribution system Ping is a term coined by the IT industry to the procedure of sending a command over a network to a particular Ethernet device asking it to confirm its identity and Pi possibly reply with additional information Thus an Lake device on the network can be pinged from the Lake Controller on receipt of the ping the hi intensity ing white LED on the front panel illuminates Reverse pinging is also possible whereby the ping is instigated from Lake hardware device and a visual identification of the processor registers in the Lake Controller software Preset A complete frame configuration that is stored in the device hardware Primar
107. recall is available without using a PC Using the System Presets function in the Lake Controller entire system configurations can be stored and recalled across a network of LM PLM and PLM Series devices This enables fast retrieval and switching of entire system configurations as minimal data is being sent between the Controller and Processors 28 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface 7 Front Panel Interface An overview of the front panel interface is provided in section 4 1 This chapter describes each cluster of controls as shown in the diagram below 7 1 Overview The front panel interface is framed by two sturdy cast aluminium handles and metal grill protecting the air intake and dust filters The majority of PLM functions can be controlled and or monitored via the frontpanel LCD display screen power button O function buttons OO and rotary encoder 1 1 1 Operating Modes The front panel has two basic modes Meter Mode and Menu Mode e Meter Mode provides the following views Home view Amplifier Meters view LoadPilot view Temperature Meters view Input Meters view and Module Meters view To navigate through these views press the METER button or turn the rotary encoder button Please refer to section 7 10 for further information on Meter Mode e Menu Mode provides various menus for viewing and editing parameters and is selected by pressing the MENU button Select the requir
108. refer to section 5 3 further details Table 6 2 lists PLM Series analog input sensitivity in dBu and Vrms for various Amp Gain settings and maximum minimum ISVPL settings assuming an analog input headroom of 26 dBu Input Sensitivity ISVPL SETTING GAIN dB 44 1 0 0 87 19 8 0 08 41 4 0 1 22 16 8 0 11 38 7 0 1 73 13 8 0 16 35 10 0 2 44 10 8 0 22 32 13 0 3 45 7 8 0 32 29 16 0 4 87 4 8 0 45 26 19 0 6 88 1 8 0 63 NC 22 23 0 10 90 2 2 1 00 Y Table 6 2 Analog Input Sensitivity in dBu and Vrms 6 3 Lake Processing and Control As outlined in section 2 2 3 this device integrates seamlessly into the Lake Processing environment providing all features functionality and connectivity associated with all Lake Processors The internal Lake Processing includes programmable crossovers EQ dynamics and other functions and can be fully controlled via the Lake Controller software with a version number of 6 3 or later Additionally many functions can be controlled or accessed directly via the front panel The Lake Controller Operation Manual and Lake Network Configuration Guide are supplied on the accompanying USB key and additional documentation is available from the Start Menu after software installation Visit http labgruppen com to download the latest software firmware and documentation for your devices 26 PLM SERIES Operation Manual rev 1 0 0 6 Signal Flow and
109. rformed on the PLM This data set is termed a Fingerprint When a PLM specific loudspeaker type is loaded its Fingerprint load characteristics are included These load characteristics are stored in a file with a mal suffix and are loaded simultaneously with the module file 6 5 Loudspeaker Processor Overview The Lake Processing system within PLM Series devices may be configured with up to four processing Modules containing a total of up to twelve processing Module outputs that can be routed to any of the four power output channels Each set of processing elements is referred to as a Module and can be configured as crossovers full bandwidth auxiliary outputs or a combination of the two The relationship between inputs and outputs is defined via the Lake Controller or via the front panel Input Config Menu The Lake Processing system provides two distinct categories of crossovers e Infinite Impulse Response filters IIR such as the classic Bessel Butterworth or Linkwitz Riley types these are available with slopes ranging from 6 dB octave to 48 dB octave e Finite Impulse Response filters FIR providing zero phase shift with steep transition slopes at the crossover frequencies These are also referred to as Linear Phase Crossovers PLM SERIES Operation Manual rev1 0 0 27 6 Signal Flow and Lake Processing 6 6 Files and Presets The Lake system provides various methods for storing and recalling Module Frame or system w
110. s Network Ne An Ethernet network where some or all cabled connections are replaced by wireless links Table 9 4 Glossary of Terms Acronyms and Abbreviations PLM SERIES Operation Manual rev 1 0 0 10 Application Guide 10 Application Guide This chapter describes the practical application and use of PLM Series devices 10 1 Rack 1 0 Panels For fast and simple system connection pre wired racks using connection panels can be used With an I O connector panel fitted to the front of the rack all audio loudspeaker network and power cables can be plugged in at one position without requiring rear panel access 10 2 Power Distribution For professional applications it is recommended that the sum of the available mains power is above 3000 W per PLM e g 230 V x 16 A 120 V x 32 A As PLM devices are equipped with BEL the current draw of the device can be configured to perfectly match the power distribution Safety approved equipment is not required to have a mains breaker as long as this does not pose any fire hazard under fault conditions as is the case with the PLM Please see the following examples suggesting power distribution methods across multiple PLM devices All of the examples given will work although the first examples for both 230 V and 115 V operation have a slight advantage due to their power sharing ability 10 2 1 Six PLM Series Devices with 230 240 V Mains Supply If the mains suppl
111. s is greatly increased AES3 contains a high speed data stream and requires an effective bandwidth of up to 12 MHz far beyond the 20 kHz required for analog audio The distance allowed between a signal source and the PLM is dependent on both cable quality and the sampling rate used At a 96 kHz sampling rate any good quality AES3 cable should allow a cable run of 100 meters with no data losses beyond the capability of internal error correction The best cables may allow longer cable runs though careful trials are recommended before use in the field Sampling rate also governs allowed cable length a 100 meter length at 96 kHz might extend to 200 meters at 48 kHz but be cut to 50 meters at 192 kHz 10 6 3 4 Signal Degradation and Loss A weak or degraded AESS signal will exhibit no audible loss of quality as long as the robustness of the data stream remains above the threshold required for internal error correction As degradation approaches the threshold audible artifacts may be heard including pops clicks and momentary dropouts Any such indications require immediate attention as often the window of acceptable data loss between artifacts and complete audio loss can be very narrow As a precautionary measure four touring applications it is advisable to configure all digital audio wiring prior to use It is recommended that all cables be tested for error free performance at lengths 20 to 25 greater than lengths to be used in the field in ord
112. ses radio frequency energy and if not used or installed in accordance with these operating instructions may cause interference to other equipment such as radio receivers This Class A digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe A est conforme a la norme NMB 003 du Canada However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment on and off the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the antenna e Increase the separation between the equipment and receiver e Connect the equipment to an outlet on a circuit different from that to which the receiver is connected e Check if the affected unit complies with the EMC limits for immunity CE labeled If not address the problem with the manufacturer or supplier All electrical products sold in the EC must be approved for immunity against electromagnetic fields high voltage flashes and radio interference e Consult the dealer or an experienced radio TV technician for help Speaker damage Amplifier apparatus is very powerful and can be potentially dangerous to both loudspeakers and humans alike Many loudspeakers can be easily damaged or destroyed by overpowering them Always check the sp
113. t for return instructions and a Return Authorization number Please note for product return 1 Use the original packing 2 Include a copy of the sales receipt your name return address phone and fax number email address and description of the defect 3 Mark the Return Authorization number on the outside of the packing 4 Ship the product prepaid to Lab gruppen Faktorvagen 1 SE 434 37 Kungsbacka SWEDEN Phone 46 300 56 28 00 Fax 46 300 56 28 99 service labgruppen com www labgruppen com 88 PLM SERIES Operation Manual rev 1 0 0 Notes Notes PLM SERIES Operation Manual revi 0 0 89 Notes Notes 90 PLM SERIES Operation Manual rev1 0 0 Notes Notes PLM SERIES Operation Manual rev1 0 0 91 labgruppen com Intercooler Class TD and Lake are national and or international registered trademarks of Lab gruppen AB PLM Powered Loudspeaker Management R SMPS LoadLibrary LoadSmart SpeakerSafe ISVPL BEL UVL and CAL are trademarks of Lab gruppen AB Dolby is a registered trademark of Dolby Laboratories Raised Cosine Equalization LimiterMax and lso Float are trademarks of Dolby Laboratories Audinate is a registered trademark of Audinate Pty Ltd Dante and Zen are trademarks of Audinate Pty Ltd All other trademarks remain the property of their respective owners Copyright O 2014 Lab gruppen AB All rights reserved Item no OM PLM
114. te Receiver Ch 5 Priority 3 AES1 Ch 1 Priority 4 Analog 1 Router 2 Priority 1 Dante Receiver Ch 2 Priority 2 Dante Receiver Ch 6 Priority 3 AES1 Ch 2 Priority 4 Analog 2 Router 3 Priority 1 Dante Receiver Ch 3 Priority 2 Dante Receiver Ch 7 Priority 3 AES1 Ch 3 Priority 4 Analog 3 Router 4 Priority 1 Dante Receiver Ch 4 Priority 2 Dante Receiver Ch 8 Priority 3 AES1 Ch 4 Priority 4 Analog 4 9 3 3 Amplifier and Device Defaults Attenuation O dB Polarity Positive In phase Mutes Unmuted Load Model No Load Model Breaker Emulation Limiter PLM 20K44 32A PLM 12K44 25A IP Configuration Auto Zero Conf Auto IP Dual Redundancy Disabled Dante Slave Only Enabled PLM SERIES Operation Manual rev1 0 0 69 9 Appendix 9 4 Current Draw and Thermal Dissipation Specifications The tables in this section provide measured current consumption and calculated heat dissipation for five different operating conditions for each PLM Series device aPN Standby Mode Power On Idle No Signal Power On Normal Operation Pink Noise 1 8 of Rated Power Power On Heavy Duty Operation Pink Noise Max Power Not available for PLM 20000Q Power On Pilot Tone Operation 20 kHz Sine Wave Table 9 2
115. te indication and faults and warning indications relating to the individual PLM inputs All four LEDs will iluminate simultaneously when indicating global faults or warnings Please refer to section 7 for further details Dynamic Function Buttons with LEDs Right of LCD The function of these buttons change according to the currently selected view or menu e In Menu Mode they are used for menu navigation and for parameter selection e In Meter Mode they provide PLM output mute unmute functionality in conjunction MUTE ENABLE All LEDs provide individual mute clip fault and warning indications for the PLM power outputs channels Please refer to section 7 for further details Communication LED The high intensity white LED illuminates white to indicate that the Module Frame is selected in the Lake Controller it flashes white to indicate communication with the Lake Controller The brightness of the LCD and communications LED can be adjusted in the Frame page of the Main Menu on the front panel Y Rotary Encoder The rotary encoder is used to modify various parameters e g input level via the menu When a menu item is selected that permits adjustment of parameter values the ring around the rotary encoder illuminates In Home View the encoder can be used to scroll through the Meter Views Exit The EXIT button is used primarily while navigating the menu system in Menu Mode pressing EXIT will return the menu up one level In M
116. tegration Measurement amp Analysis Pilot tone generation and analysis Load impedance analysis Real Time Analyzer RTA 3rd party integration Dante Audio Network Dante I O Network topology redundancy Sample rates transport Network latency Device Presets Local memory locations for the settings of the product AES Inputs Inputs Supported sample rates resolution Sample rate conversion THD N 20 Hz 20 kHz unweighted Analog Inputs Inputs Maximum input digital reference Sampling rate resolution Input impedance balanced unbalanced THD N typical at 1 kHz unweighted THD N typical at 20 Hz and 20 kHz unweighted Limiters Adjustable Inter Sample Voltage Peak Limiter ISVPL Current Peak Limiter lt 300 ms Current Average Limiter CAL gt 300 ms LimiterMax rms and peak limiters MaxRMS rms voltage limiter MaxPeak peak voltage limiter PLM 12K44 Lake Dante 4 12000 W 3000 W 3000 W 3000 W 1900 W 950 W 3000 W 3000 W 4400 W 5900 W 4600 W 2300 W 1150 W 3300 W 4700 W 194 V 67A Any channel has potential to deliver the max single channel output power 175V Current Average Limiter CAL Very High Frequency Protection VHF Direct Current Protection DC Short Circuit Protection Current Clip Limiter Voltage Clip Limiter Temperature protection lt 0 05 lt 0 04 gt 114 dB gt 70 dB 0 05 dB 96 kHz 32 bit floating point 1 61 1 68 ms Up to
117. ter is only accessible when the Module is unlocked and the Lake Controller is in Designer Mode Adjust via MODULES gt LEVELS gt METER OPTIONS gt ADJUST FACTORY 2 User Gain is editable by a user unless the system designer has locked away the parameter adjust via MODULES gt LEVELS Generally outout gain values are configured within a Module loudspeaker preset file and should not need to be adjusted further 10 3 5 Attenuator An attenuator gain adjustment is provided for each power output channel in the PLM This control replaces the traditional volume control found on conventional amplifiers and should typically be left at O dB during use To adjust navigate to I O CONFIG gt EVENTS amp CONTROL gt STATUS in the Lake Controller Please refer to the Lake Controller Operation Manual for further details 10 3 6 Amp Gain The Amp Gain corresponds to the gain adjustment in a conventional separate loudspeaker processor and amplifier system When using a pre defined Module loudspeaker preset file the Amp Gain settings will normally remain as defined in the file The limiter and output gain settings of the Module were configured with this gain setting and will not be automatically compensated if changes are made This configuration scheme though unusual allows for compatibility with other Lake products assuming the amplifier gain is set as specified in the speaker preset When creating a loudspeaker preset Module file adjust
118. the AES3 is daisy chained only terminate the last PLM device in the chain 7113 3 Iso Float MENU gt I O CONFIG gt ISO FLOAT MENO CONFGASO FLOAT MUTE METER MENU Figure 7 20 Iso Float To change the Iso Float setting adjust the value using the rotary encoder The current settings are also displayed on the front panel I O STATUS screen The analog inputs utilize lso Float transformerless electronic balancing circuitry This provides electrical isolation from an analog source comparable to that achieved with transformer based designs However pin 1 of the XLR input connector may be connected to ground within the device if desired This option is selected by using the rotary encoder to toggle between FLOATING and GROUNDED It may be necessary to change this setting to resolve ground loop problems when using analog inputs 7113 4 Output Router MENU gt I O CONFIG gt OUTPUT RTR With PLM Series Module output routing to Power outputs as well as AES or Analog to Dante output routing is accessible through the Front panel interface MSource Power outp Module 4 AHIGH errs c sus7 Figure 7 21 Output Router PLM SERIES Operation Manual rev 1 0 0 5 7 Front Panel Interface Toggle the Source from which you want to route the channels Module Analog AES 8 Toggle up among the available source channels Toggle down among the available source channels O Unused Unused Toggle left
119. the current the power output stage is driving into its load relative to the maximum permissible current the fixed CPL allows e The Power Meter P indicates the instantaneous output power being developed in the load relative to the PLM s maximum output power capability e The Gain Reduction Meter L indicates the degree of limiting being applied by the PLM ISVPL and or the Lake LimiterMax 7 10 3 Temperature View Temperature View provides information about the current operating temperatures within the PLM Selected fuse type as well as Mains Voltage and Current draw MUTE NAE METER MENU Figure 7 10 Meter Mode gt Temperature View Current View title Power supply temp PSU amp Lake processor temp DSP as percentage of maximum 8 Unused in Temperature View Unused in Temperature View O Breaker Emulation Limiter selected Fuse type Mains Voltage Mains Current Draw Output 1 AMP Temp of power output as percentage of maximum Output 2 AMP Temp of power output as percentage of maximum O Output 3 AMP Temp of power output as percentage of maximum Output 4 AMP Temp of power output as percentage of maximum Current View title amp Frame label Frame faults and warnings PLM SERIES Operation Manual rev1 0 0 41 7 Front Panel Interface 710 4 Input Meters View Input View enables inspection of the source selected to each input router input signal level before the input mixer i e pri
120. the size and type of network being used For small networks less than 254 addresses SONE maa a subnet mask of 255 255 255 0 can be used A Class C network Iso Float Iso Float is Lake s proprietary method of electronic balancing which provides a particularly high level of isolation and immunity from ground loops ISVPL is an abbreviation for Inter Sample Voltage Peak Limiter a proprietary Lab gruppen technique for ensuring that voltage at the output terminals of a PLM ISVPL does not exceed a pre determined level Eight ISVPL profiles provide the ability to configure for low distortion or high SPL specific to certain frequency ranges or for universal use Lake Controller The Lake Controller is the software application used to control LM 26 Processors PLM Series and other Lake devices This software application provides additional functionality and allows various grouping functions for simultaneous control of multiple Lake Processing enabled devices Latency The small but finite delay incurred by audio signals when they are transformed into the digital domain processed digitally and then converted back into analog signals In the Lake system latency is assured to be constant Legacy Lake Device This term refers to older Lake audio equipment which may form part of an audio system i e Lake Contour Pro 26 Lake Mesa Quad EQ and the Dolby Lake Processor The Lake Controller has the capability to control all Lake legacy products
121. tional processor configuration is required for a dual redundant network setup The device may be configured for Dual Redundancy from the Network menu of the front panel or via Lake Controller See the Lake Controller Operation Manual for further details When the device operates in Dual Redundancy a symbol is displayed in the status bar Dual Redundancy is not enabled by default and must be configured For a technical reference of the Ethernet Port please refer to section 8 4 Additional information is also available in the Lake Network Configuration Guide Note When connecting multiple devices to an Ethernet network care must be taken NOT to create a closed loop which causes network malfunction PLM SERIES Operation Manual rev1 0 0 15 5 Operation and performance 5 Operation and performance This chapter provides comprehensive information on PLM Series connection setup operation and performance The detailed information included here is essential to realizing the full functionality of the PLM Series devices 5 1 Operation precautions Make sure that the Standby button on the PLM s front panel is either unlit OFF or red STANDBY before making any input or output connections A Ensure the AC voltage is within the range printed on the label adjacent to the AC mains connector Ensure no input signal is present when powering on the PLM to reduce the risk of any inadvertent bursts of high level aud
122. tor correction PFC The device can accept any mains voltage from 65 V to 265 V allowing it to function worldwide in many different configurations The PFC reduces current peaks on the lines and reduces the requirements placed on the mains distribution system PLM units offer an unparalleled power factor extremely close to one 5 4 1 Low Inrush Current High power amplifiers with inadequate inrush current limiting can draw considerable current from the mains at turn on sometimes tripping a fast acting mains breaker The PLM however has very low inrush current to prevent tripping of breakers Several PLM s can under normal conditions be powered up simultaneously If you do experience problems powering up multiple PLM s simultaneously they must either be turned on manually in an ordered manner or sequenced remotely using the Lake Controller software s Global Control feature Alternatively the capacity of the mains supply should be increased Note If insufficient power is available to allow simultaneous power up then there is probably insufficient gt capacity for full power output during operation It is recommended that additional capacity is added to the mains power distribution system 24 PLM SERIES Operation Manual rev1 0 0 6 Signal Flow and Lake Processing 6 Signal Flow and Lake Processing 6 1 Signal Flow The figures below depict the audio signal flow for a PLM Series device It is worth noting t
123. tories Contour Mesa Quad EQ Mesa Parametric EQ Raised Cosine Equalization LimiterMax and Iso Float are trademarks of Dolby Laboratories Audinate is a registered trademark of Audinate Pty Ltd Dante and Zen are trademarks of Audinate Pty Ltd All other trademarks remain the property of their respective owners 86 PLM SERIES Operation Manual rev1 0 0 12 Warranty and Support 12 Warranty and Support 12 1 General This product is manufactured by Lab gruppen and it is warranted to be free from any defects caused by components or factory workmanship under normal use and service for a period of six 6 years from date of purchase from an authorized Lab gruppen dealer If the product fails to perform as specified during the warranty period Lab gruppen will undertake to repair or at its option replace this product at no charge to its owner provided the unit is returned undamaged shipping prepaid to an authorized service facility or to the factory This warranty shall be null and void if the product is subjected to repair work or alteration by a person other than those authorized by us mechanical damage including shipping accidents war civil insurrection misuse abuse operation with incorrect AC voltage incorrect connections or accessories operation with faulty associated equipment or exposure to inclement weather conditions Damage due to normal wear and tear is not covered by the warranty Units on which the serial number
124. uch cases it is likely that the resulting higher current will cause CPL to activate 10 6 Digital Audio Connections Whenever possible it is preferable to connect a digital rather that analog input signal to the device This is particularly relevant if the source signal is already in the digital domain such as the source from a digital mixing console or digital distribution system The primary cause of signal distortion and signal delay latency is the digital to analog and analog to digital conversion process Therefore using digital inputs normally provides higher quality audio with lower latency Two types of digital audio inputs are available Dante networked multi channel digital audio and 2 channel digital audio via the AES3 Dante based system configurations and interconnections are explained in a separate document the Lake Network Configuration Guide The information in this section is supplied for users unfamiliar with AES3 Users already familiar with AES will find that the device conforms to established conventions 10 6 1 AES3 Digital Audio The original AES EBU digital audio interface standard was developed by the Audio Engineering Society in conjunction with the European Broadcast Union Originally published in 1985 it was revised in 1992 and 2003 and in its current iteration it is properly designated the AES3 standard AESS is a serial transmission format for linearly represented uncompressed digital audio data It
125. use a soft cloth only do not use solvent cleaners The dust filters on both sides of the front panel behind the grilles should occasionally be removed and cleaned to ensure maximum airflow through the device Disconnect the unit from mains power prior to removing dust the filter and ensure the dust filter is replace prior to turning the unit back on Do not use sharp or metal objects to remove the dust filter and be careful that the implement used to remove the filter does not enter the device In extreme cases it may be necessary to clean the inside of the device This procedure should only be carried out by qualified service personnel This may be necessary if the device has had prolonged operation in an extreme environment such as one where cracked oil smoke machines are in use If the device is used in extreme conditions it is recommended to have it serviced every three years as a preventative measure 9 3 Factory Default Settings 9 3 1 Module Defaults Module Type 4 x CL1 Way Mod Input Mute On Mod Output Mutes Off Gain O GB unity Delay Oms Polarity Positive In phase MaxRMSs 20 dB MaxPeak 21 dB Amp Gain 35 dB ISVPL 194 V Input amp Output EQ Flat G8 PLM SERIES Operation Manual rev1 0 0 9 Appendix 9 3 2 Input and Router Defaults Autoselect On Input sensitivity 26 dBu Dante Disabled AESS3 Terminated Iso Float Enabled Router 1 Priority 1 Dante Receiver Ch 1 Priority 2 Dan
126. ustment pre PLM s protection circuitry Muting of the Module outputs is available via MUTE ENABLE in Module Meters view as the PLM power output mutes are assigned in this mode See section 7 8 4 5 However Module output mute status and control are also available in Menu Mode and may also be viewed and controlled from the Lake Controller software Please refer to section 7 11 2 7 for details of selecting Module Output Mute in Menu Mode Refer to the Lake Controller User Manual for details of mute selection via the software 7 8 4 5 Power Output Mute The four dynamic function buttons to the right of the LCD control the Power Output Mutes of output channels 1 4 These mutes are located within the PLM s power output stage When a PLM power output is muted the LED turns red and the text AMP CH MUTE is displayed on the LCD When unmuted the LED turns green unless any other output warning conditions are active 9 Note Fault condition LED indications take priority over mute status indications If a fault condition v occurs the LED will indicate the fault and not the mute status PLM SERIES Operation Manual rev1 0 0 39 7 Front Panel Interface 7 8 5 LED Fault Warning and Clip Indication O O A tricolor LED is embedded inside each of the eight dynamic function buttons These convey a variety of status indications including faults and warnings signal clip indications Module input mute Module output mute and
127. utput channels The LCD displays Positive for normal operation and Negative when the phase is inverted 46 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface 7 11 2 5 Amp Gain MENU gt MODULE gt AMP GAIN By default all outputs are selected use the rotary encoder to change the gain of all power outputs or press the associated output button to deselect one or more outputs Amp Gain adjusts the gain of the PLM s power output stage for each output channel The default setting is 35 dB variable in 0 1 dB increments from 22 dB to 44 dB Care should be taken in altering Amp Gain which should be adjusted in conjunction with the Gain controls and limiter thresholds 11 2 6 Limiters MENU gt MODULE gt LIMITERS Various parameters of the PLM s Inter Sample Voltage Peak Limiter ISVPL and the Lake LimiterMax can be adjusted via this submenu By default simultaneous adjustment of most limiter parameters across all output channels is selected although channels may be adjusted individually if required Attack and Release times must be adjusted individually per module DSP channel Inter Sample Voltage Peak Limiter Threshold ISVPL Threshold The ISVPL prevents the voltage of the PLM outputs from exceeding a pre determined value The ISVPL Threshold can be adjusted between 17 8 V to 600 V which represents the instantaneous peak voltage not the RMS value of the output signal The actual value is displayed i
128. vedeveav Sl Speak OuUPUISs TE A A Le sees devs ssebuaeatesesdhesiesevsbssievstaigveses 57 8 2 ANAlOG IMPULS id 60 B SHAESS Digital O merere e vdveceves ea A a NE EEE EOE E vscteteetectttudsivesctel 62 8 4 RJ45 etherCON Network Connections ssssssccccssocsssessesscccccecesssssssscccccecessessssscccesecessessssssccesesessessss 62 g a POWER MEL a A daa 64 A RR O Faults and Wamings QVEMVIOW idad dada 65 9 2 MAINTENANCE da a 68 9 9 Factory Default SStINGS ce 3 caavacelsica ceeded Sesuseaseuss szsnasded iaa ii SIA Goedel des tico 68 9 4 Current Draw and Thermal Dissipation Specifications acc ccooooconaaanccnnnnnnnnnononnnnonnnnnnnonoccnnnnnnnaracnnnnnnnnnnnos 70 9 5 Glossary of Terms Acronyms and Abbreviations oocccccnnnnnnnonnnnnnnnnnnnnnonononononnnnononnnn non nn nn nono nono nora nana nn 72 TO Application GUIde feces Po yeds wa can taasseaedg ches seucekeuaeeeudeaduinseiees Sag E E E eeubiee 74 10M RACK ONPAPCIS a stasis seeede O eh suas as EDI asa agen ees 74 10 2 Power DISTIN ds 74 10 3 Gal SUCIO slats a cadusyusdasss ceeooseguosedatas tela l obavass slang ches iaetaasapaeiiee ads 75 10 4 Gain Level Optimizationny A iia 77 10 5 Speaker COMMQUIALONS cis 2 5 cocci clesesiutnctes cede wedecacueulsaadkcuctes ec 80 10 60 Digital Audio COMEN A AE AAA Miva 80 10 7 Digital Clock COMIGUIALION e iaa 83 11 Technical Specifications 85 12 Warranty and UA ii il A A Savage sede E ESE EEE EA E E AA fetta nas EE 87 12 2
129. via the downloaded software installer e Online at http labgruppen com products documentation 3 Installation 3 1 Unpacking Carefully open the shipping carton and check for any damage to the device or the supplied accessories Every Lab gruppen product is tested and inspected before leaving the factory and should arrive in perfect condition If any damage is discovered please notify the shipping company immediately Only the consignee may initiate a claim with the carrier or their insurers for damage incurred during shipping Save the carton and packing materials for the carrier s inspection In addition to the PLM Series device the shipping carton includes the following items e PLM Series Quick Start amp Field Reference Guide e AC mains lead power cable with Neutrik powerCON connector e Rear brackets for additional rack support pair along with associated mounting hardware e Software Installer and Documentation USB key Please keep the original carton and associated packaging to facilitate shipping of the device should the need arise 3 2 Mounting Airflow for cooling the device is from front panel intake to rear panel exit Please ensure that no objects such as rack doors or lids are placed at the front or rear of the rack to ensure that airflow is maximized This device has no top or bottom vents and therefore PLM units may be stacked directly on top of each other Sufficient soace should be available at the fro
130. wer cycle to activate 7115 5 Latency Match To turn Latency Match on or off select the parameter using the adjacent button then change the status using the rotary encoder By default PLM products exhibit the exact same input to output latency as the PLM and D Series products However the PLM PLM and D Series products have a greater latency compared to the Lake processors of LM Series By enabling the Latency Match feature the LM Series will add delay to match overall processing delay of the PLM PLM and D Series This regards Analog and AES only Dante is not part of Latency match Exception Latency match will not function correctly when running 48k based AES input using the primary clock domain D4 PLM SERIES Operation Manual rev 1 0 0 7 Front Panel Interface 1 11 6 Front Panel Display Controls MENU gt FRAME gt FRONT Contrast To adjust the front panel LCD contrast select this option then use the rotary encoder to change the value Dimming To adjust the front panel LCD amp LED brightness select this option then use the rotary encoder to change the value Channel Order To adjust the order in which both inputs and outputs are displayed on the front panel in all views select this option then use the rotary encoder to change the value between TOP DOWN default and BOTTOM UP 711 7 Frame Preset Menu MENU gt FRAME PRST To recall an existing Frame Preset use the rotary encoder to select the required Preset
131. y Ethernet Port The Primary Ethernet port on the is the means of connecting the device to a network See also Secondary Ethernet Port Abbreviation of Power Supply Unit The PSU in any item of electronic equipment converts the AC mains into a set of internal DC voltages which run the electronic PSU assemblies themselves RJ45 RJ45 connections are the industry standard connectors for Ethernet ports Router As far as networks of the type discussed in this manual are concerned see Switch Secondary Ethernet Port The Secondary Ethernet port can be used either as a daisy chain output repeating the network connection at the Primary port or for the connection of a separate second network for full redundancy Short Circuit Protection A Lab gruppen proprietary protective circuit designed to mute a channel when a short circuit is detected at its output terminals to prevent damage to the device SpeakerSafe Once activated SpeakerSafe constantly monitors the voltage and current at the PLM s outputs Using Fingerprint data the software then calculates parameters such as voice coil and magnet temperatures providing the operator with real time performance monitoring See LoadLibrary speakON An industrial quality loudspeaker connector manufactured by Neutrik 4 pole 2 speakers and 8 pole 4 speakers versions are fitted to various versions of the PLM Star Topology A network topology which uses a network switch to
132. y is 230 V and the system requirement is six PLM s then the mains capacity would need to be able to provide 3 x 32 A There are two methods of achieving this 1 Three racks each with two PLM s and a 32 A single phase mains supply The 32 A capacity is shared between the two PLM s within the rack This is beneficial as the two PLM s don t have to draw the same current The only limitation is that in combination they don t draw over 32 A 2 Three racks each with two PLM s and a 16 A three phase mains supply This requires central power distribution to be configured as two 3 x 16 A circuits from 3 x 32 A One phase is used for each PLM within the rack This has the benefit that each PLM has its own breaker but they all have to operate within the same limit of 16 A therefore more care must be taken to ensure that no breaker blows if different loads are used Note The 230 V version of the PLM is equipped with a slow blow 30 A ceramic breaker T4 PLM SERIES Operation Manual rev1 0 0 10 Application Guide 10 2 2 Six PLM Series Devices with 100 120 V Mains Supply If the mains supply is 115 V and the system requirement is 6 PLM s then the mains capacity would need to be able to supply two 3 x 30 A circuits There are two methods of achieving this 1 Two racks each with three 230 V version PLM s and a 30 A three phase mains supply In the rack the PLM s are connected between the phases e one between phase 1 and 2 one between ph

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PLM+ SERIES - Huss Licht & Ton